diff --git a/.gitignore b/.gitignore
index 5eef559d6..668256290 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,3 +7,6 @@ pnpm-debug.log*
 !.vscode/extensions.json
 .idea
 .DS_Store
+
+# Temporary directory
+tmp/
diff --git a/core/.eslintignore b/core/.eslintignore
index 0f586e83a..567a7eaf1 100644
--- a/core/.eslintignore
+++ b/core/.eslintignore
@@ -3,4 +3,5 @@ cache/
 deployments/
 export.json
 export/
+external/
 typechain/
diff --git a/core/.eslintrc b/core/.eslintrc
index 727b7ad1e..39419600b 100644
--- a/core/.eslintrc
+++ b/core/.eslintrc
@@ -4,7 +4,14 @@
   "rules": {
     "import/no-extraneous-dependencies": [
       "error",
-      { "devDependencies": ["hardhat.config.ts", "test/**"] }
+      {
+        "devDependencies": [
+          "hardhat.config.ts",
+          "deploy/**",
+          "helpers/**",
+          "test/**"
+        ]
+      }
     ]
   }
 }
diff --git a/core/.prettierignore b/core/.prettierignore
index 0f586e83a..567a7eaf1 100644
--- a/core/.prettierignore
+++ b/core/.prettierignore
@@ -3,4 +3,5 @@ cache/
 deployments/
 export.json
 export/
+external/
 typechain/
diff --git a/core/.solhint.json b/core/.solhint.json
index 7afe6405c..f54af0b9a 100644
--- a/core/.solhint.json
+++ b/core/.solhint.json
@@ -1,5 +1,4 @@
 {
   "extends": "thesis",
-  "plugins": [],
-  "rules": {}
+  "plugins": []
 }
diff --git a/core/contracts/Acre.sol b/core/contracts/Acre.sol
index cb6ed5f33..0e1cf640f 100644
--- a/core/contracts/Acre.sol
+++ b/core/contracts/Acre.sol
@@ -1,9 +1,46 @@
 // SPDX-License-Identifier: GPL-3.0-only
 pragma solidity ^0.8.21;
 
-// Uncomment this line to use console.log
-// import "hardhat/console.sol";
+import "@openzeppelin/contracts/token/ERC20/extensions/ERC4626.sol";
 
-contract Acre {
-    // TODO: add your implementation
+/// @title Acre
+/// @notice This contract implements the ERC-4626 tokenized vault standard. By
+///         staking tBTC, users acquire a liquid staking token called stBTC,
+///         commonly referred to as "shares". The staked tBTC is securely
+///         deposited into Acre's vaults, where it generates yield over time.
+///         Users have the flexibility to redeem stBTC, enabling them to
+///         withdraw their staked tBTC along with the accrued yield.
+/// @dev ERC-4626 is a standard to optimize and unify the technical parameters
+///      of yield-bearing vaults. This contract facilitates the minting and
+///      burning of shares (stBTC), which are represented as standard ERC20
+///      tokens, providing a seamless exchange with tBTC tokens.
+contract Acre is ERC4626 {
+    event StakeReferral(bytes32 indexed referral, uint256 assets);
+
+    constructor(
+        IERC20 tbtc
+    ) ERC4626(tbtc) ERC20("Acre Staked Bitcoin", "stBTC") {}
+
+    /// @notice Stakes a given amount of tBTC token and mints shares to a
+    ///         receiver.
+    /// @dev This function calls `deposit` function from `ERC4626` contract. The
+    ///      amount of the assets has to be pre-approved in the tBTC contract.
+    /// @param assets Approved amount for the transfer and stake.
+    /// @param receiver The address to which the shares will be minted.
+    /// @param referral Data used for referral program.
+    /// @return shares Minted shares.
+    function stake(
+        uint256 assets,
+        address receiver,
+        bytes32 referral
+    ) public returns (uint256) {
+        // TODO: revisit the type of referral.
+        uint256 shares = deposit(assets, receiver);
+
+        if (referral != bytes32(0)) {
+            emit StakeReferral(referral, assets);
+        }
+
+        return shares;
+    }
 }
diff --git a/core/contracts/test/TestERC20.sol b/core/contracts/test/TestERC20.sol
new file mode 100644
index 000000000..44e5e14dc
--- /dev/null
+++ b/core/contracts/test/TestERC20.sol
@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: GPL-3.0-only
+pragma solidity ^0.8.21;
+
+import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
+
+contract TestERC20 is ERC20 {
+    constructor() ERC20("Test Token", "TEST") {}
+
+    function mint(address account, uint256 value) external {
+        _mint(account, value);
+    }
+}
diff --git a/core/deploy/00_resolve_tbtc.ts b/core/deploy/00_resolve_tbtc.ts
new file mode 100644
index 000000000..dc1bfeff5
--- /dev/null
+++ b/core/deploy/00_resolve_tbtc.ts
@@ -0,0 +1,30 @@
+import type { HardhatRuntimeEnvironment } from "hardhat/types"
+import type { DeployFunction } from "hardhat-deploy/types"
+import { isNonZeroAddress } from "../helpers/address"
+
+const func: DeployFunction = async (hre: HardhatRuntimeEnvironment) => {
+  const { getNamedAccounts, deployments } = hre
+  const { log } = deployments
+  const { deployer } = await getNamedAccounts()
+
+  const tbtc = await deployments.getOrNull("TBTC")
+
+  if (tbtc && isNonZeroAddress(tbtc.address)) {
+    log(`using TBTC contract at ${tbtc.address}`)
+  } else if (!hre.network.tags.allowStubs) {
+    throw new Error("deployed TBTC contract not found")
+  } else {
+    log("deploying TBTC contract stub")
+
+    await deployments.deploy("TBTC", {
+      contract: "TestERC20",
+      from: deployer,
+      log: true,
+      waitConfirmations: 1,
+    })
+  }
+}
+
+export default func
+
+func.tags = ["TBTC"]
diff --git a/core/deploy/01_deploy_acre.ts b/core/deploy/01_deploy_acre.ts
index 3266a1986..531fc6c12 100644
--- a/core/deploy/01_deploy_acre.ts
+++ b/core/deploy/01_deploy_acre.ts
@@ -1,13 +1,24 @@
 import type { HardhatRuntimeEnvironment } from "hardhat/types"
 import type { DeployFunction } from "hardhat-deploy/types"
 
-const func: DeployFunction = async function (hre: HardhatRuntimeEnvironment) {
-  const { deployments } = hre
-  const { log } = deployments
+const func: DeployFunction = async (hre: HardhatRuntimeEnvironment) => {
+  const { getNamedAccounts, deployments } = hre
+  const { deployer } = await getNamedAccounts()
 
-  log("Deploying Acre contract")
+  const tbtc = await deployments.get("TBTC")
+
+  await deployments.deploy("Acre", {
+    from: deployer,
+    args: [tbtc.address],
+    log: true,
+    waitConfirmations: 1,
+  })
+
+  // TODO: Add Etherscan verification
+  // TODO: Add Tenderly verification
 }
 
 export default func
 
 func.tags = ["Acre"]
+func.dependencies = ["TBTC"]
diff --git a/core/deploy/21_transfer_ownership_acre.ts b/core/deploy/21_transfer_ownership_acre.ts
new file mode 100644
index 000000000..c62708641
--- /dev/null
+++ b/core/deploy/21_transfer_ownership_acre.ts
@@ -0,0 +1,23 @@
+import type { HardhatRuntimeEnvironment } from "hardhat/types"
+import type { DeployFunction } from "hardhat-deploy/types"
+
+const func: DeployFunction = async (hre: HardhatRuntimeEnvironment) => {
+  const { getNamedAccounts, deployments } = hre
+  const { deployer, governance } = await getNamedAccounts()
+  const { log } = deployments
+
+  log(`transferring ownership of Acre contract to ${governance}`)
+
+  await deployments.execute(
+    "Acre",
+    { from: deployer, log: true, waitConfirmations: 1 },
+    "transferOwnership",
+    governance,
+  )
+}
+
+export default func
+
+func.tags = ["TransferOwnershipAcre"]
+// TODO: Enable once Acre extends Ownable
+func.skip = async () => true
diff --git a/core/external/mainnet/TBTC.json b/core/external/mainnet/TBTC.json
new file mode 100644
index 000000000..dbb8de123
--- /dev/null
+++ b/core/external/mainnet/TBTC.json
@@ -0,0 +1,762 @@
+{
+  "address": "0x18084fbA666a33d37592fA2633fD49a74DD93a88",
+  "abi": [
+    {
+      "inputs": [],
+      "stateMutability": "nonpayable",
+      "type": "constructor"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "owner",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "spender",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "internalType": "uint256",
+          "name": "value",
+          "type": "uint256"
+        }
+      ],
+      "name": "Approval",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "previousOwner",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "newOwner",
+          "type": "address"
+        }
+      ],
+      "name": "OwnershipTransferred",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "from",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "to",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "internalType": "uint256",
+          "name": "value",
+          "type": "uint256"
+        }
+      ],
+      "name": "Transfer",
+      "type": "event"
+    },
+    {
+      "inputs": [],
+      "name": "DOMAIN_SEPARATOR",
+      "outputs": [
+        {
+          "internalType": "bytes32",
+          "name": "",
+          "type": "bytes32"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [],
+      "name": "PERMIT_TYPEHASH",
+      "outputs": [
+        {
+          "internalType": "bytes32",
+          "name": "",
+          "type": "bytes32"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "",
+          "type": "address"
+        },
+        {
+          "internalType": "address",
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "name": "allowance",
+      "outputs": [
+        {
+          "internalType": "uint256",
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "spender",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "amount",
+          "type": "uint256"
+        }
+      ],
+      "name": "approve",
+      "outputs": [
+        {
+          "internalType": "bool",
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "spender",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "amount",
+          "type": "uint256"
+        },
+        {
+          "internalType": "bytes",
+          "name": "extraData",
+          "type": "bytes"
+        }
+      ],
+      "name": "approveAndCall",
+      "outputs": [
+        {
+          "internalType": "bool",
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "name": "balanceOf",
+      "outputs": [
+        {
+          "internalType": "uint256",
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "uint256",
+          "name": "amount",
+          "type": "uint256"
+        }
+      ],
+      "name": "burn",
+      "outputs": [],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "account",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "amount",
+          "type": "uint256"
+        }
+      ],
+      "name": "burnFrom",
+      "outputs": [],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [],
+      "name": "cachedChainId",
+      "outputs": [
+        {
+          "internalType": "uint256",
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [],
+      "name": "cachedDomainSeparator",
+      "outputs": [
+        {
+          "internalType": "bytes32",
+          "name": "",
+          "type": "bytes32"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [],
+      "name": "decimals",
+      "outputs": [
+        {
+          "internalType": "uint8",
+          "name": "",
+          "type": "uint8"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "recipient",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "amount",
+          "type": "uint256"
+        }
+      ],
+      "name": "mint",
+      "outputs": [],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [],
+      "name": "name",
+      "outputs": [
+        {
+          "internalType": "string",
+          "name": "",
+          "type": "string"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "name": "nonces",
+      "outputs": [
+        {
+          "internalType": "uint256",
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [],
+      "name": "owner",
+      "outputs": [
+        {
+          "internalType": "address",
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "owner",
+          "type": "address"
+        },
+        {
+          "internalType": "address",
+          "name": "spender",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "amount",
+          "type": "uint256"
+        },
+        {
+          "internalType": "uint256",
+          "name": "deadline",
+          "type": "uint256"
+        },
+        {
+          "internalType": "uint8",
+          "name": "v",
+          "type": "uint8"
+        },
+        {
+          "internalType": "bytes32",
+          "name": "r",
+          "type": "bytes32"
+        },
+        {
+          "internalType": "bytes32",
+          "name": "s",
+          "type": "bytes32"
+        }
+      ],
+      "name": "permit",
+      "outputs": [],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "contract IERC20",
+          "name": "token",
+          "type": "address"
+        },
+        {
+          "internalType": "address",
+          "name": "recipient",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "amount",
+          "type": "uint256"
+        }
+      ],
+      "name": "recoverERC20",
+      "outputs": [],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "contract IERC721",
+          "name": "token",
+          "type": "address"
+        },
+        {
+          "internalType": "address",
+          "name": "recipient",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "tokenId",
+          "type": "uint256"
+        },
+        {
+          "internalType": "bytes",
+          "name": "data",
+          "type": "bytes"
+        }
+      ],
+      "name": "recoverERC721",
+      "outputs": [],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [],
+      "name": "renounceOwnership",
+      "outputs": [],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [],
+      "name": "symbol",
+      "outputs": [
+        {
+          "internalType": "string",
+          "name": "",
+          "type": "string"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [],
+      "name": "totalSupply",
+      "outputs": [
+        {
+          "internalType": "uint256",
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "recipient",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "amount",
+          "type": "uint256"
+        }
+      ],
+      "name": "transfer",
+      "outputs": [
+        {
+          "internalType": "bool",
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "sender",
+          "type": "address"
+        },
+        {
+          "internalType": "address",
+          "name": "recipient",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "amount",
+          "type": "uint256"
+        }
+      ],
+      "name": "transferFrom",
+      "outputs": [
+        {
+          "internalType": "bool",
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "newOwner",
+          "type": "address"
+        }
+      ],
+      "name": "transferOwnership",
+      "outputs": [],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    }
+  ],
+  "transactionHash": "0x52538ac60ce0a5672aa77991e9f030ca6eed76db0bf027821ed5170b29971ba2",
+  "receipt": {
+    "to": null,
+    "from": "0x123694886DBf5Ac94DDA07135349534536D14cAf",
+    "contractAddress": "0x18084fbA666a33d37592fA2633fD49a74DD93a88",
+    "transactionIndex": 44,
+    "gasUsed": "2909503",
+    "logsBloom": "0x00000000000000000000000000000000000000000000000000800000000000000000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000040000001000000000000000000020000000000000000020000000000000000000800000000000000000000000000000000400000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000",
+    "blockHash": "0x3586b492c74f630a840cbf65b80646da78860364cbdc7976521aee86449a6759",
+    "transactionHash": "0x52538ac60ce0a5672aa77991e9f030ca6eed76db0bf027821ed5170b29971ba2",
+    "logs": [
+      {
+        "transactionIndex": 44,
+        "blockNumber": 13042356,
+        "transactionHash": "0x52538ac60ce0a5672aa77991e9f030ca6eed76db0bf027821ed5170b29971ba2",
+        "address": "0x18084fbA666a33d37592fA2633fD49a74DD93a88",
+        "topics": [
+          "0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0",
+          "0x0000000000000000000000000000000000000000000000000000000000000000",
+          "0x000000000000000000000000123694886dbf5ac94dda07135349534536d14caf"
+        ],
+        "data": "0x",
+        "logIndex": 54,
+        "blockHash": "0x3586b492c74f630a840cbf65b80646da78860364cbdc7976521aee86449a6759"
+      }
+    ],
+    "blockNumber": 13042356,
+    "cumulativeGasUsed": "5443048",
+    "status": 1,
+    "byzantium": true
+  },
+  "args": [],
+  "solcInputHash": "7cc3eda3cb3ff2522d18b5e7b31ea228",
+  "metadata": "{\"compiler\":{\"version\":\"0.8.4+commit.c7e474f2\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"inputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"spender\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"value\",\"type\":\"uint256\"}],\"name\":\"Approval\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"previousOwner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"OwnershipTransferred\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"value\",\"type\":\"uint256\"}],\"name\":\"Transfer\",\"type\":\"event\"},{\"inputs\":[],\"name\":\"DOMAIN_SEPARATOR\",\"outputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"PERMIT_TYPEHASH\",\"outputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"name\":\"allowance\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"spender\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"approve\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"spender\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"extraData\",\"type\":\"bytes\"}],\"name\":\"approveAndCall\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"name\":\"balanceOf\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"burn\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"account\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"burnFrom\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"cachedChainId\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"cachedDomainSeparator\",\"outputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"decimals\",\"outputs\":[{\"internalType\":\"uint8\",\"name\":\"\",\"type\":\"uint8\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"mint\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"name\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"name\":\"nonces\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"owner\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"spender\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"deadline\",\"type\":\"uint256\"},{\"internalType\":\"uint8\",\"name\":\"v\",\"type\":\"uint8\"},{\"internalType\":\"bytes32\",\"name\":\"r\",\"type\":\"bytes32\"},{\"internalType\":\"bytes32\",\"name\":\"s\",\"type\":\"bytes32\"}],\"name\":\"permit\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"contract IERC20\",\"name\":\"token\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"recoverERC20\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"contract IERC721\",\"name\":\"token\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"recoverERC721\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"renounceOwnership\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"symbol\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"totalSupply\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"transfer\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"sender\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"transferFrom\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"transferOwnership\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"}],\"devdoc\":{\"kind\":\"dev\",\"methods\":{\"approve(address,uint256)\":{\"details\":\"If the `amount` is set to `type(uint256).max` then      `transferFrom` and `burnFrom` will not reduce an allowance.      Beware that changing an allowance with this method brings the risk      that someone may use both the old and the new allowance by      unfortunate transaction ordering. One possible solution to mitigate      this race condition is to first reduce the spender's allowance to 0      and set the desired value afterwards:      https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\",\"returns\":{\"_0\":\"True if the operation succeeded.\"}},\"approveAndCall(address,uint256,bytes)\":{\"details\":\"If the `amount` is set to `type(uint256).max` then      `transferFrom` and `burnFrom` will not reduce an allowance.\",\"returns\":{\"_0\":\"True if both approval and `receiveApproval` calls succeeded.\"}},\"burn(uint256)\":{\"details\":\"Requirements:       - the caller must have a balance of at least `amount`.\"},\"burnFrom(address,uint256)\":{\"details\":\"Requirements:      - `account` must have a balance of at least `amount`,      - the caller must have allowance for `account`'s tokens of at least        `amount`.\"},\"mint(address,uint256)\":{\"details\":\"Requirements:      - `recipient` cannot be the zero address.\"},\"owner()\":{\"details\":\"Returns the address of the current owner.\"},\"permit(address,address,uint256,uint256,uint8,bytes32,bytes32)\":{\"details\":\"The deadline argument can be set to `type(uint256).max to create         permits that effectively never expire.  If the `amount` is set         to `type(uint256).max` then `transferFrom` and `burnFrom` will         not reduce an allowance.\"},\"renounceOwnership()\":{\"details\":\"Leaves the contract without owner. It will not be possible to call `onlyOwner` functions anymore. Can only be called by the current owner. NOTE: Renouncing ownership will leave the contract without an owner, thereby removing any functionality that is only available to the owner.\"},\"transfer(address,uint256)\":{\"details\":\"Requirements:       - `recipient` cannot be the zero address,       - the caller must have a balance of at least `amount`.\",\"returns\":{\"_0\":\"True if the operation succeeded, reverts otherwise.\"}},\"transferFrom(address,address,uint256)\":{\"details\":\"Requirements:      - `sender` and `recipient` cannot be the zero address,      - `sender` must have a balance of at least `amount`,      - the caller must have allowance for `sender`'s tokens of at least        `amount`.\",\"returns\":{\"_0\":\"True if the operation succeeded, reverts otherwise.\"}},\"transferOwnership(address)\":{\"details\":\"Transfers ownership of the contract to a new account (`newOwner`). Can only be called by the current owner.\"}},\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{\"DOMAIN_SEPARATOR()\":{\"notice\":\"Returns hash of EIP712 Domain struct with the token name as         a signing domain and token contract as a verifying contract.         Used to construct EIP2612 signature provided to `permit`         function.\"},\"PERMIT_TYPEHASH()\":{\"notice\":\"Returns EIP2612 Permit message hash. Used to construct EIP2612         signature provided to `permit` function.\"},\"allowance(address,address)\":{\"notice\":\"The remaining number of tokens that spender will be         allowed to spend on behalf of owner through `transferFrom` and         `burnFrom`. This is zero by default.\"},\"approve(address,uint256)\":{\"notice\":\"Sets `amount` as the allowance of `spender` over the caller's         tokens.\"},\"approveAndCall(address,uint256,bytes)\":{\"notice\":\"Calls `receiveApproval` function on spender previously approving         the spender to withdraw from the caller multiple times, up to         the `amount` amount. If this function is called again, it         overwrites the current allowance with `amount`. Reverts if the         approval reverted or if `receiveApproval` call on the spender         reverted.\"},\"balanceOf(address)\":{\"notice\":\"The amount of tokens owned by the given account.\"},\"burn(uint256)\":{\"notice\":\"Destroys `amount` tokens from the caller.\"},\"burnFrom(address,uint256)\":{\"notice\":\"Destroys `amount` of tokens from `account` using the allowance         mechanism. `amount` is then deducted from the caller's allowance         unless the allowance was made for `type(uint256).max`.\"},\"decimals()\":{\"notice\":\"The decimals places of the token.\"},\"mint(address,uint256)\":{\"notice\":\"Creates `amount` tokens and assigns them to `account`,         increasing the total supply.\"},\"name()\":{\"notice\":\"The name of the token.\"},\"nonces(address)\":{\"notice\":\"Returns the current nonce for EIP2612 permission for the         provided token owner for a replay protection. Used to construct         EIP2612 signature provided to `permit` function.\"},\"permit(address,address,uint256,uint256,uint8,bytes32,bytes32)\":{\"notice\":\"EIP2612 approval made with secp256k1 signature.         Users can authorize a transfer of their tokens with a signature         conforming EIP712 standard, rather than an on-chain transaction         from their address. Anyone can submit this signature on the         user's behalf by calling the permit function, paying gas fees,         and possibly performing other actions in the same transaction.\"},\"symbol()\":{\"notice\":\"The symbol of the token.\"},\"totalSupply()\":{\"notice\":\"The amount of tokens in existence.\"},\"transfer(address,uint256)\":{\"notice\":\"Moves `amount` tokens from the caller's account to `recipient`.\"},\"transferFrom(address,address,uint256)\":{\"notice\":\"Moves `amount` tokens from `sender` to `recipient` using the         allowance mechanism. `amount` is then deducted from the caller's         allowance unless the allowance was made for `type(uint256).max`.\"}},\"version\":1}},\"settings\":{\"compilationTarget\":{\"contracts/token/TBTC.sol\":\"TBTC\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\",\"useLiteralContent\":true},\"optimizer\":{\"enabled\":false,\"runs\":200},\"remappings\":[]},\"sources\":{\"@openzeppelin/contracts/access/Ownable.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity ^0.8.0;\\n\\nimport \\\"../utils/Context.sol\\\";\\n\\n/**\\n * @dev Contract module which provides a basic access control mechanism, where\\n * there is an account (an owner) that can be granted exclusive access to\\n * specific functions.\\n *\\n * By default, the owner account will be the one that deploys the contract. This\\n * can later be changed with {transferOwnership}.\\n *\\n * This module is used through inheritance. It will make available the modifier\\n * `onlyOwner`, which can be applied to your functions to restrict their use to\\n * the owner.\\n */\\nabstract contract Ownable is Context {\\n    address private _owner;\\n\\n    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\\n\\n    /**\\n     * @dev Initializes the contract setting the deployer as the initial owner.\\n     */\\n    constructor() {\\n        _setOwner(_msgSender());\\n    }\\n\\n    /**\\n     * @dev Returns the address of the current owner.\\n     */\\n    function owner() public view virtual returns (address) {\\n        return _owner;\\n    }\\n\\n    /**\\n     * @dev Throws if called by any account other than the owner.\\n     */\\n    modifier onlyOwner() {\\n        require(owner() == _msgSender(), \\\"Ownable: caller is not the owner\\\");\\n        _;\\n    }\\n\\n    /**\\n     * @dev Leaves the contract without owner. It will not be possible to call\\n     * `onlyOwner` functions anymore. Can only be called by the current owner.\\n     *\\n     * NOTE: Renouncing ownership will leave the contract without an owner,\\n     * thereby removing any functionality that is only available to the owner.\\n     */\\n    function renounceOwnership() public virtual onlyOwner {\\n        _setOwner(address(0));\\n    }\\n\\n    /**\\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\\n     * Can only be called by the current owner.\\n     */\\n    function transferOwnership(address newOwner) public virtual onlyOwner {\\n        require(newOwner != address(0), \\\"Ownable: new owner is the zero address\\\");\\n        _setOwner(newOwner);\\n    }\\n\\n    function _setOwner(address newOwner) private {\\n        address oldOwner = _owner;\\n        _owner = newOwner;\\n        emit OwnershipTransferred(oldOwner, newOwner);\\n    }\\n}\\n\",\"keccak256\":\"0x6bb804a310218875e89d12c053e94a13a4607cdf7cc2052f3e52bd32a0dc50a1\",\"license\":\"MIT\"},\"@openzeppelin/contracts/token/ERC20/IERC20.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity ^0.8.0;\\n\\n/**\\n * @dev Interface of the ERC20 standard as defined in the EIP.\\n */\\ninterface IERC20 {\\n    /**\\n     * @dev Returns the amount of tokens in existence.\\n     */\\n    function totalSupply() external view returns (uint256);\\n\\n    /**\\n     * @dev Returns the amount of tokens owned by `account`.\\n     */\\n    function balanceOf(address account) external view returns (uint256);\\n\\n    /**\\n     * @dev Moves `amount` tokens from the caller's account to `recipient`.\\n     *\\n     * Returns a boolean value indicating whether the operation succeeded.\\n     *\\n     * Emits a {Transfer} event.\\n     */\\n    function transfer(address recipient, uint256 amount) external returns (bool);\\n\\n    /**\\n     * @dev Returns the remaining number of tokens that `spender` will be\\n     * allowed to spend on behalf of `owner` through {transferFrom}. This is\\n     * zero by default.\\n     *\\n     * This value changes when {approve} or {transferFrom} are called.\\n     */\\n    function allowance(address owner, address spender) external view returns (uint256);\\n\\n    /**\\n     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\\n     *\\n     * Returns a boolean value indicating whether the operation succeeded.\\n     *\\n     * IMPORTANT: Beware that changing an allowance with this method brings the risk\\n     * that someone may use both the old and the new allowance by unfortunate\\n     * transaction ordering. One possible solution to mitigate this race\\n     * condition is to first reduce the spender's allowance to 0 and set the\\n     * desired value afterwards:\\n     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\\n     *\\n     * Emits an {Approval} event.\\n     */\\n    function approve(address spender, uint256 amount) external returns (bool);\\n\\n    /**\\n     * @dev Moves `amount` tokens from `sender` to `recipient` using the\\n     * allowance mechanism. `amount` is then deducted from the caller's\\n     * allowance.\\n     *\\n     * Returns a boolean value indicating whether the operation succeeded.\\n     *\\n     * Emits a {Transfer} event.\\n     */\\n    function transferFrom(\\n        address sender,\\n        address recipient,\\n        uint256 amount\\n    ) external returns (bool);\\n\\n    /**\\n     * @dev Emitted when `value` tokens are moved from one account (`from`) to\\n     * another (`to`).\\n     *\\n     * Note that `value` may be zero.\\n     */\\n    event Transfer(address indexed from, address indexed to, uint256 value);\\n\\n    /**\\n     * @dev Emitted when the allowance of a `spender` for an `owner` is set by\\n     * a call to {approve}. `value` is the new allowance.\\n     */\\n    event Approval(address indexed owner, address indexed spender, uint256 value);\\n}\\n\",\"keccak256\":\"0x027b891937d20ccf213fdb9c31531574256de774bda99d3a70ecef6e1913ed2a\",\"license\":\"MIT\"},\"@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity ^0.8.0;\\n\\nimport \\\"../IERC20.sol\\\";\\n\\n/**\\n * @dev Interface for the optional metadata functions from the ERC20 standard.\\n *\\n * _Available since v4.1._\\n */\\ninterface IERC20Metadata is IERC20 {\\n    /**\\n     * @dev Returns the name of the token.\\n     */\\n    function name() external view returns (string memory);\\n\\n    /**\\n     * @dev Returns the symbol of the token.\\n     */\\n    function symbol() external view returns (string memory);\\n\\n    /**\\n     * @dev Returns the decimals places of the token.\\n     */\\n    function decimals() external view returns (uint8);\\n}\\n\",\"keccak256\":\"0x83fe24f5c04a56091e50f4a345ff504c8bff658a76d4c43b16878c8f940c53b2\",\"license\":\"MIT\"},\"@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity ^0.8.0;\\n\\nimport \\\"../IERC20.sol\\\";\\nimport \\\"../../../utils/Address.sol\\\";\\n\\n/**\\n * @title SafeERC20\\n * @dev Wrappers around ERC20 operations that throw on failure (when the token\\n * contract returns false). Tokens that return no value (and instead revert or\\n * throw on failure) are also supported, non-reverting calls are assumed to be\\n * successful.\\n * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,\\n * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.\\n */\\nlibrary SafeERC20 {\\n    using Address for address;\\n\\n    function safeTransfer(\\n        IERC20 token,\\n        address to,\\n        uint256 value\\n    ) internal {\\n        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));\\n    }\\n\\n    function safeTransferFrom(\\n        IERC20 token,\\n        address from,\\n        address to,\\n        uint256 value\\n    ) internal {\\n        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));\\n    }\\n\\n    /**\\n     * @dev Deprecated. This function has issues similar to the ones found in\\n     * {IERC20-approve}, and its usage is discouraged.\\n     *\\n     * Whenever possible, use {safeIncreaseAllowance} and\\n     * {safeDecreaseAllowance} instead.\\n     */\\n    function safeApprove(\\n        IERC20 token,\\n        address spender,\\n        uint256 value\\n    ) internal {\\n        // safeApprove should only be called when setting an initial allowance,\\n        // or when resetting it to zero. To increase and decrease it, use\\n        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'\\n        require(\\n            (value == 0) || (token.allowance(address(this), spender) == 0),\\n            \\\"SafeERC20: approve from non-zero to non-zero allowance\\\"\\n        );\\n        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));\\n    }\\n\\n    function safeIncreaseAllowance(\\n        IERC20 token,\\n        address spender,\\n        uint256 value\\n    ) internal {\\n        uint256 newAllowance = token.allowance(address(this), spender) + value;\\n        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\\n    }\\n\\n    function safeDecreaseAllowance(\\n        IERC20 token,\\n        address spender,\\n        uint256 value\\n    ) internal {\\n        unchecked {\\n            uint256 oldAllowance = token.allowance(address(this), spender);\\n            require(oldAllowance >= value, \\\"SafeERC20: decreased allowance below zero\\\");\\n            uint256 newAllowance = oldAllowance - value;\\n            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\\n        }\\n    }\\n\\n    /**\\n     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement\\n     * on the return value: the return value is optional (but if data is returned, it must not be false).\\n     * @param token The token targeted by the call.\\n     * @param data The call data (encoded using abi.encode or one of its variants).\\n     */\\n    function _callOptionalReturn(IERC20 token, bytes memory data) private {\\n        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since\\n        // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that\\n        // the target address contains contract code and also asserts for success in the low-level call.\\n\\n        bytes memory returndata = address(token).functionCall(data, \\\"SafeERC20: low-level call failed\\\");\\n        if (returndata.length > 0) {\\n            // Return data is optional\\n            require(abi.decode(returndata, (bool)), \\\"SafeERC20: ERC20 operation did not succeed\\\");\\n        }\\n    }\\n}\\n\",\"keccak256\":\"0x02348b2e4b9f3200c7e3907c5c2661643a6d8520e9f79939fbb9b4005a54894d\",\"license\":\"MIT\"},\"@openzeppelin/contracts/token/ERC721/IERC721.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity ^0.8.0;\\n\\nimport \\\"../../utils/introspection/IERC165.sol\\\";\\n\\n/**\\n * @dev Required interface of an ERC721 compliant contract.\\n */\\ninterface IERC721 is IERC165 {\\n    /**\\n     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.\\n     */\\n    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\\n\\n    /**\\n     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.\\n     */\\n    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\\n\\n    /**\\n     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.\\n     */\\n    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\\n\\n    /**\\n     * @dev Returns the number of tokens in ``owner``'s account.\\n     */\\n    function balanceOf(address owner) external view returns (uint256 balance);\\n\\n    /**\\n     * @dev Returns the owner of the `tokenId` token.\\n     *\\n     * Requirements:\\n     *\\n     * - `tokenId` must exist.\\n     */\\n    function ownerOf(uint256 tokenId) external view returns (address owner);\\n\\n    /**\\n     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\\n     * are aware of the ERC721 protocol to prevent tokens from being forever locked.\\n     *\\n     * Requirements:\\n     *\\n     * - `from` cannot be the zero address.\\n     * - `to` cannot be the zero address.\\n     * - `tokenId` token must exist and be owned by `from`.\\n     * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.\\n     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\\n     *\\n     * Emits a {Transfer} event.\\n     */\\n    function safeTransferFrom(\\n        address from,\\n        address to,\\n        uint256 tokenId\\n    ) external;\\n\\n    /**\\n     * @dev Transfers `tokenId` token from `from` to `to`.\\n     *\\n     * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.\\n     *\\n     * Requirements:\\n     *\\n     * - `from` cannot be the zero address.\\n     * - `to` cannot be the zero address.\\n     * - `tokenId` token must be owned by `from`.\\n     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\\n     *\\n     * Emits a {Transfer} event.\\n     */\\n    function transferFrom(\\n        address from,\\n        address to,\\n        uint256 tokenId\\n    ) external;\\n\\n    /**\\n     * @dev Gives permission to `to` to transfer `tokenId` token to another account.\\n     * The approval is cleared when the token is transferred.\\n     *\\n     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.\\n     *\\n     * Requirements:\\n     *\\n     * - The caller must own the token or be an approved operator.\\n     * - `tokenId` must exist.\\n     *\\n     * Emits an {Approval} event.\\n     */\\n    function approve(address to, uint256 tokenId) external;\\n\\n    /**\\n     * @dev Returns the account approved for `tokenId` token.\\n     *\\n     * Requirements:\\n     *\\n     * - `tokenId` must exist.\\n     */\\n    function getApproved(uint256 tokenId) external view returns (address operator);\\n\\n    /**\\n     * @dev Approve or remove `operator` as an operator for the caller.\\n     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.\\n     *\\n     * Requirements:\\n     *\\n     * - The `operator` cannot be the caller.\\n     *\\n     * Emits an {ApprovalForAll} event.\\n     */\\n    function setApprovalForAll(address operator, bool _approved) external;\\n\\n    /**\\n     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\\n     *\\n     * See {setApprovalForAll}\\n     */\\n    function isApprovedForAll(address owner, address operator) external view returns (bool);\\n\\n    /**\\n     * @dev Safely transfers `tokenId` token from `from` to `to`.\\n     *\\n     * Requirements:\\n     *\\n     * - `from` cannot be the zero address.\\n     * - `to` cannot be the zero address.\\n     * - `tokenId` token must exist and be owned by `from`.\\n     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\\n     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\\n     *\\n     * Emits a {Transfer} event.\\n     */\\n    function safeTransferFrom(\\n        address from,\\n        address to,\\n        uint256 tokenId,\\n        bytes calldata data\\n    ) external;\\n}\\n\",\"keccak256\":\"0xf101e8720213560fab41104d53b3cc7ba0456ef3a98455aa7f022391783144a0\",\"license\":\"MIT\"},\"@openzeppelin/contracts/utils/Address.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity ^0.8.0;\\n\\n/**\\n * @dev Collection of functions related to the address type\\n */\\nlibrary Address {\\n    /**\\n     * @dev Returns true if `account` is a contract.\\n     *\\n     * [IMPORTANT]\\n     * ====\\n     * It is unsafe to assume that an address for which this function returns\\n     * false is an externally-owned account (EOA) and not a contract.\\n     *\\n     * Among others, `isContract` will return false for the following\\n     * types of addresses:\\n     *\\n     *  - an externally-owned account\\n     *  - a contract in construction\\n     *  - an address where a contract will be created\\n     *  - an address where a contract lived, but was destroyed\\n     * ====\\n     */\\n    function isContract(address account) internal view returns (bool) {\\n        // This method relies on extcodesize, which returns 0 for contracts in\\n        // construction, since the code is only stored at the end of the\\n        // constructor execution.\\n\\n        uint256 size;\\n        assembly {\\n            size := extcodesize(account)\\n        }\\n        return size > 0;\\n    }\\n\\n    /**\\n     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\\n     * `recipient`, forwarding all available gas and reverting on errors.\\n     *\\n     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\\n     * of certain opcodes, possibly making contracts go over the 2300 gas limit\\n     * imposed by `transfer`, making them unable to receive funds via\\n     * `transfer`. {sendValue} removes this limitation.\\n     *\\n     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\\n     *\\n     * IMPORTANT: because control is transferred to `recipient`, care must be\\n     * taken to not create reentrancy vulnerabilities. Consider using\\n     * {ReentrancyGuard} or the\\n     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\\n     */\\n    function sendValue(address payable recipient, uint256 amount) internal {\\n        require(address(this).balance >= amount, \\\"Address: insufficient balance\\\");\\n\\n        (bool success, ) = recipient.call{value: amount}(\\\"\\\");\\n        require(success, \\\"Address: unable to send value, recipient may have reverted\\\");\\n    }\\n\\n    /**\\n     * @dev Performs a Solidity function call using a low level `call`. A\\n     * plain `call` is an unsafe replacement for a function call: use this\\n     * function instead.\\n     *\\n     * If `target` reverts with a revert reason, it is bubbled up by this\\n     * function (like regular Solidity function calls).\\n     *\\n     * Returns the raw returned data. To convert to the expected return value,\\n     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\\n     *\\n     * Requirements:\\n     *\\n     * - `target` must be a contract.\\n     * - calling `target` with `data` must not revert.\\n     *\\n     * _Available since v3.1._\\n     */\\n    function functionCall(address target, bytes memory data) internal returns (bytes memory) {\\n        return functionCall(target, data, \\\"Address: low-level call failed\\\");\\n    }\\n\\n    /**\\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\\n     * `errorMessage` as a fallback revert reason when `target` reverts.\\n     *\\n     * _Available since v3.1._\\n     */\\n    function functionCall(\\n        address target,\\n        bytes memory data,\\n        string memory errorMessage\\n    ) internal returns (bytes memory) {\\n        return functionCallWithValue(target, data, 0, errorMessage);\\n    }\\n\\n    /**\\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\\n     * but also transferring `value` wei to `target`.\\n     *\\n     * Requirements:\\n     *\\n     * - the calling contract must have an ETH balance of at least `value`.\\n     * - the called Solidity function must be `payable`.\\n     *\\n     * _Available since v3.1._\\n     */\\n    function functionCallWithValue(\\n        address target,\\n        bytes memory data,\\n        uint256 value\\n    ) internal returns (bytes memory) {\\n        return functionCallWithValue(target, data, value, \\\"Address: low-level call with value failed\\\");\\n    }\\n\\n    /**\\n     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\\n     * with `errorMessage` as a fallback revert reason when `target` reverts.\\n     *\\n     * _Available since v3.1._\\n     */\\n    function functionCallWithValue(\\n        address target,\\n        bytes memory data,\\n        uint256 value,\\n        string memory errorMessage\\n    ) internal returns (bytes memory) {\\n        require(address(this).balance >= value, \\\"Address: insufficient balance for call\\\");\\n        require(isContract(target), \\\"Address: call to non-contract\\\");\\n\\n        (bool success, bytes memory returndata) = target.call{value: value}(data);\\n        return _verifyCallResult(success, returndata, errorMessage);\\n    }\\n\\n    /**\\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\\n     * but performing a static call.\\n     *\\n     * _Available since v3.3._\\n     */\\n    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\\n        return functionStaticCall(target, data, \\\"Address: low-level static call failed\\\");\\n    }\\n\\n    /**\\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\\n     * but performing a static call.\\n     *\\n     * _Available since v3.3._\\n     */\\n    function functionStaticCall(\\n        address target,\\n        bytes memory data,\\n        string memory errorMessage\\n    ) internal view returns (bytes memory) {\\n        require(isContract(target), \\\"Address: static call to non-contract\\\");\\n\\n        (bool success, bytes memory returndata) = target.staticcall(data);\\n        return _verifyCallResult(success, returndata, errorMessage);\\n    }\\n\\n    /**\\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\\n     * but performing a delegate call.\\n     *\\n     * _Available since v3.4._\\n     */\\n    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\\n        return functionDelegateCall(target, data, \\\"Address: low-level delegate call failed\\\");\\n    }\\n\\n    /**\\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\\n     * but performing a delegate call.\\n     *\\n     * _Available since v3.4._\\n     */\\n    function functionDelegateCall(\\n        address target,\\n        bytes memory data,\\n        string memory errorMessage\\n    ) internal returns (bytes memory) {\\n        require(isContract(target), \\\"Address: delegate call to non-contract\\\");\\n\\n        (bool success, bytes memory returndata) = target.delegatecall(data);\\n        return _verifyCallResult(success, returndata, errorMessage);\\n    }\\n\\n    function _verifyCallResult(\\n        bool success,\\n        bytes memory returndata,\\n        string memory errorMessage\\n    ) private pure returns (bytes memory) {\\n        if (success) {\\n            return returndata;\\n        } else {\\n            // Look for revert reason and bubble it up if present\\n            if (returndata.length > 0) {\\n                // The easiest way to bubble the revert reason is using memory via assembly\\n\\n                assembly {\\n                    let returndata_size := mload(returndata)\\n                    revert(add(32, returndata), returndata_size)\\n                }\\n            } else {\\n                revert(errorMessage);\\n            }\\n        }\\n    }\\n}\\n\",\"keccak256\":\"0x3b4820cac4f127869f6eb496c1d74fa6ac86ed24071e0f94742e6aef20e7252c\",\"license\":\"MIT\"},\"@openzeppelin/contracts/utils/Context.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity ^0.8.0;\\n\\n/*\\n * @dev Provides information about the current execution context, including the\\n * sender of the transaction and its data. While these are generally available\\n * via msg.sender and msg.data, they should not be accessed in such a direct\\n * manner, since when dealing with meta-transactions the account sending and\\n * paying for execution may not be the actual sender (as far as an application\\n * is concerned).\\n *\\n * This contract is only required for intermediate, library-like contracts.\\n */\\nabstract contract Context {\\n    function _msgSender() internal view virtual returns (address) {\\n        return msg.sender;\\n    }\\n\\n    function _msgData() internal view virtual returns (bytes calldata) {\\n        return msg.data;\\n    }\\n}\\n\",\"keccak256\":\"0x95098bd1d9c8dec4d80d3dedb88a0d949fa0d740ee99f2aa466bc308216ca6d5\",\"license\":\"MIT\"},\"@openzeppelin/contracts/utils/introspection/IERC165.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity ^0.8.0;\\n\\n/**\\n * @dev Interface of the ERC165 standard, as defined in the\\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\\n *\\n * Implementers can declare support of contract interfaces, which can then be\\n * queried by others ({ERC165Checker}).\\n *\\n * For an implementation, see {ERC165}.\\n */\\ninterface IERC165 {\\n    /**\\n     * @dev Returns true if this contract implements the interface defined by\\n     * `interfaceId`. See the corresponding\\n     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\\n     * to learn more about how these ids are created.\\n     *\\n     * This function call must use less than 30 000 gas.\\n     */\\n    function supportsInterface(bytes4 interfaceId) external view returns (bool);\\n}\\n\",\"keccak256\":\"0xa28007762d9da9db878dd421960c8cb9a10471f47ab5c1b3309bfe48e9e79ff4\",\"license\":\"MIT\"},\"@thesis/solidity-contracts/contracts/token/ERC20WithPermit.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity ^0.8.4;\\n\\nimport \\\"@openzeppelin/contracts/access/Ownable.sol\\\";\\n\\nimport \\\"./IERC20WithPermit.sol\\\";\\nimport \\\"./IReceiveApproval.sol\\\";\\n\\n/// @title  ERC20WithPermit\\n/// @notice Burnable ERC20 token with EIP2612 permit functionality. User can\\n///         authorize a transfer of their token with a signature conforming\\n///         EIP712 standard instead of an on-chain transaction from their\\n///         address. Anyone can submit this signature on the user's behalf by\\n///         calling the permit function, as specified in EIP2612 standard,\\n///         paying gas fees, and possibly performing other actions in the same\\n///         transaction.\\ncontract ERC20WithPermit is IERC20WithPermit, Ownable {\\n    /// @notice The amount of tokens owned by the given account.\\n    mapping(address => uint256) public override balanceOf;\\n\\n    /// @notice The remaining number of tokens that spender will be\\n    ///         allowed to spend on behalf of owner through `transferFrom` and\\n    ///         `burnFrom`. This is zero by default.\\n    mapping(address => mapping(address => uint256)) public override allowance;\\n\\n    /// @notice Returns the current nonce for EIP2612 permission for the\\n    ///         provided token owner for a replay protection. Used to construct\\n    ///         EIP2612 signature provided to `permit` function.\\n    mapping(address => uint256) public override nonces;\\n\\n    uint256 public immutable cachedChainId;\\n    bytes32 public immutable cachedDomainSeparator;\\n\\n    /// @notice Returns EIP2612 Permit message hash. Used to construct EIP2612\\n    ///         signature provided to `permit` function.\\n    bytes32 public constant override PERMIT_TYPEHASH =\\n        keccak256(\\n            \\\"Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)\\\"\\n        );\\n\\n    /// @notice The amount of tokens in existence.\\n    uint256 public override totalSupply;\\n\\n    /// @notice The name of the token.\\n    string public override name;\\n\\n    /// @notice The symbol of the token.\\n    string public override symbol;\\n\\n    /// @notice The decimals places of the token.\\n    uint8 public constant override decimals = 18;\\n\\n    constructor(string memory _name, string memory _symbol) {\\n        name = _name;\\n        symbol = _symbol;\\n\\n        cachedChainId = block.chainid;\\n        cachedDomainSeparator = buildDomainSeparator();\\n    }\\n\\n    /// @notice Moves `amount` tokens from the caller's account to `recipient`.\\n    /// @return True if the operation succeeded, reverts otherwise.\\n    /// @dev Requirements:\\n    ///       - `recipient` cannot be the zero address,\\n    ///       - the caller must have a balance of at least `amount`.\\n    function transfer(address recipient, uint256 amount)\\n        external\\n        override\\n        returns (bool)\\n    {\\n        _transfer(msg.sender, recipient, amount);\\n        return true;\\n    }\\n\\n    /// @notice Moves `amount` tokens from `sender` to `recipient` using the\\n    ///         allowance mechanism. `amount` is then deducted from the caller's\\n    ///         allowance unless the allowance was made for `type(uint256).max`.\\n    /// @return True if the operation succeeded, reverts otherwise.\\n    /// @dev Requirements:\\n    ///      - `sender` and `recipient` cannot be the zero address,\\n    ///      - `sender` must have a balance of at least `amount`,\\n    ///      - the caller must have allowance for `sender`'s tokens of at least\\n    ///        `amount`.\\n    function transferFrom(\\n        address sender,\\n        address recipient,\\n        uint256 amount\\n    ) external override returns (bool) {\\n        uint256 currentAllowance = allowance[sender][msg.sender];\\n        if (currentAllowance != type(uint256).max) {\\n            require(\\n                currentAllowance >= amount,\\n                \\\"Transfer amount exceeds allowance\\\"\\n            );\\n            _approve(sender, msg.sender, currentAllowance - amount);\\n        }\\n        _transfer(sender, recipient, amount);\\n        return true;\\n    }\\n\\n    /// @notice EIP2612 approval made with secp256k1 signature.\\n    ///         Users can authorize a transfer of their tokens with a signature\\n    ///         conforming EIP712 standard, rather than an on-chain transaction\\n    ///         from their address. Anyone can submit this signature on the\\n    ///         user's behalf by calling the permit function, paying gas fees,\\n    ///         and possibly performing other actions in the same transaction.\\n    /// @dev    The deadline argument can be set to `type(uint256).max to create\\n    ///         permits that effectively never expire.  If the `amount` is set\\n    ///         to `type(uint256).max` then `transferFrom` and `burnFrom` will\\n    ///         not reduce an allowance.\\n    function permit(\\n        address owner,\\n        address spender,\\n        uint256 amount,\\n        uint256 deadline,\\n        uint8 v,\\n        bytes32 r,\\n        bytes32 s\\n    ) external override {\\n        /* solhint-disable-next-line not-rely-on-time */\\n        require(deadline >= block.timestamp, \\\"Permission expired\\\");\\n\\n        // Validate `s` and `v` values for a malleability concern described in EIP2.\\n        // Only signatures with `s` value in the lower half of the secp256k1\\n        // curve's order and `v` value of 27 or 28 are considered valid.\\n        require(\\n            uint256(s) <=\\n                0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0,\\n            \\\"Invalid signature 's' value\\\"\\n        );\\n        require(v == 27 || v == 28, \\\"Invalid signature 'v' value\\\");\\n\\n        bytes32 digest = keccak256(\\n            abi.encodePacked(\\n                \\\"\\\\x19\\\\x01\\\",\\n                DOMAIN_SEPARATOR(),\\n                keccak256(\\n                    abi.encode(\\n                        PERMIT_TYPEHASH,\\n                        owner,\\n                        spender,\\n                        amount,\\n                        nonces[owner]++,\\n                        deadline\\n                    )\\n                )\\n            )\\n        );\\n        address recoveredAddress = ecrecover(digest, v, r, s);\\n        require(\\n            recoveredAddress != address(0) && recoveredAddress == owner,\\n            \\\"Invalid signature\\\"\\n        );\\n        _approve(owner, spender, amount);\\n    }\\n\\n    /// @notice Creates `amount` tokens and assigns them to `account`,\\n    ///         increasing the total supply.\\n    /// @dev Requirements:\\n    ///      - `recipient` cannot be the zero address.\\n    function mint(address recipient, uint256 amount) external onlyOwner {\\n        require(recipient != address(0), \\\"Mint to the zero address\\\");\\n\\n        beforeTokenTransfer(address(0), recipient, amount);\\n\\n        totalSupply += amount;\\n        balanceOf[recipient] += amount;\\n        emit Transfer(address(0), recipient, amount);\\n    }\\n\\n    /// @notice Destroys `amount` tokens from the caller.\\n    /// @dev Requirements:\\n    ///       - the caller must have a balance of at least `amount`.\\n    function burn(uint256 amount) external override {\\n        _burn(msg.sender, amount);\\n    }\\n\\n    /// @notice Destroys `amount` of tokens from `account` using the allowance\\n    ///         mechanism. `amount` is then deducted from the caller's allowance\\n    ///         unless the allowance was made for `type(uint256).max`.\\n    /// @dev Requirements:\\n    ///      - `account` must have a balance of at least `amount`,\\n    ///      - the caller must have allowance for `account`'s tokens of at least\\n    ///        `amount`.\\n    function burnFrom(address account, uint256 amount) external override {\\n        uint256 currentAllowance = allowance[account][msg.sender];\\n        if (currentAllowance != type(uint256).max) {\\n            require(\\n                currentAllowance >= amount,\\n                \\\"Burn amount exceeds allowance\\\"\\n            );\\n            _approve(account, msg.sender, currentAllowance - amount);\\n        }\\n        _burn(account, amount);\\n    }\\n\\n    /// @notice Calls `receiveApproval` function on spender previously approving\\n    ///         the spender to withdraw from the caller multiple times, up to\\n    ///         the `amount` amount. If this function is called again, it\\n    ///         overwrites the current allowance with `amount`. Reverts if the\\n    ///         approval reverted or if `receiveApproval` call on the spender\\n    ///         reverted.\\n    /// @return True if both approval and `receiveApproval` calls succeeded.\\n    /// @dev If the `amount` is set to `type(uint256).max` then\\n    ///      `transferFrom` and `burnFrom` will not reduce an allowance.\\n    function approveAndCall(\\n        address spender,\\n        uint256 amount,\\n        bytes memory extraData\\n    ) external override returns (bool) {\\n        if (approve(spender, amount)) {\\n            IReceiveApproval(spender).receiveApproval(\\n                msg.sender,\\n                amount,\\n                address(this),\\n                extraData\\n            );\\n            return true;\\n        }\\n        return false;\\n    }\\n\\n    /// @notice Sets `amount` as the allowance of `spender` over the caller's\\n    ///         tokens.\\n    /// @return True if the operation succeeded.\\n    /// @dev If the `amount` is set to `type(uint256).max` then\\n    ///      `transferFrom` and `burnFrom` will not reduce an allowance.\\n    ///      Beware that changing an allowance with this method brings the risk\\n    ///      that someone may use both the old and the new allowance by\\n    ///      unfortunate transaction ordering. One possible solution to mitigate\\n    ///      this race condition is to first reduce the spender's allowance to 0\\n    ///      and set the desired value afterwards:\\n    ///      https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\\n    function approve(address spender, uint256 amount)\\n        public\\n        override\\n        returns (bool)\\n    {\\n        _approve(msg.sender, spender, amount);\\n        return true;\\n    }\\n\\n    /// @notice Returns hash of EIP712 Domain struct with the token name as\\n    ///         a signing domain and token contract as a verifying contract.\\n    ///         Used to construct EIP2612 signature provided to `permit`\\n    ///         function.\\n    /* solhint-disable-next-line func-name-mixedcase */\\n    function DOMAIN_SEPARATOR() public view override returns (bytes32) {\\n        // As explained in EIP-2612, if the DOMAIN_SEPARATOR contains the\\n        // chainId and is defined at contract deployment instead of\\n        // reconstructed for every signature, there is a risk of possible replay\\n        // attacks between chains in the event of a future chain split.\\n        // To address this issue, we check the cached chain ID against the\\n        // current one and in case they are different, we build domain separator\\n        // from scratch.\\n        if (block.chainid == cachedChainId) {\\n            return cachedDomainSeparator;\\n        } else {\\n            return buildDomainSeparator();\\n        }\\n    }\\n\\n    /// @dev Hook that is called before any transfer of tokens. This includes\\n    ///      minting and burning.\\n    ///\\n    /// Calling conditions:\\n    /// - when `from` and `to` are both non-zero, `amount` of `from`'s tokens\\n    ///   will be to transferred to `to`.\\n    /// - when `from` is zero, `amount` tokens will be minted for `to`.\\n    /// - when `to` is zero, `amount` of ``from``'s tokens will be burned.\\n    /// - `from` and `to` are never both zero.\\n    // slither-disable-next-line dead-code\\n    function beforeTokenTransfer(\\n        address from,\\n        address to,\\n        uint256 amount\\n    ) internal virtual {}\\n\\n    function _burn(address account, uint256 amount) internal {\\n        uint256 currentBalance = balanceOf[account];\\n        require(currentBalance >= amount, \\\"Burn amount exceeds balance\\\");\\n\\n        beforeTokenTransfer(account, address(0), amount);\\n\\n        balanceOf[account] = currentBalance - amount;\\n        totalSupply -= amount;\\n        emit Transfer(account, address(0), amount);\\n    }\\n\\n    function _transfer(\\n        address sender,\\n        address recipient,\\n        uint256 amount\\n    ) private {\\n        require(sender != address(0), \\\"Transfer from the zero address\\\");\\n        require(recipient != address(0), \\\"Transfer to the zero address\\\");\\n        require(recipient != address(this), \\\"Transfer to the token address\\\");\\n\\n        beforeTokenTransfer(sender, recipient, amount);\\n\\n        uint256 senderBalance = balanceOf[sender];\\n        require(senderBalance >= amount, \\\"Transfer amount exceeds balance\\\");\\n        balanceOf[sender] = senderBalance - amount;\\n        balanceOf[recipient] += amount;\\n        emit Transfer(sender, recipient, amount);\\n    }\\n\\n    function _approve(\\n        address owner,\\n        address spender,\\n        uint256 amount\\n    ) private {\\n        require(owner != address(0), \\\"Approve from the zero address\\\");\\n        require(spender != address(0), \\\"Approve to the zero address\\\");\\n        allowance[owner][spender] = amount;\\n        emit Approval(owner, spender, amount);\\n    }\\n\\n    function buildDomainSeparator() private view returns (bytes32) {\\n        return\\n            keccak256(\\n                abi.encode(\\n                    keccak256(\\n                        \\\"EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)\\\"\\n                    ),\\n                    keccak256(bytes(name)),\\n                    keccak256(bytes(\\\"1\\\")),\\n                    block.chainid,\\n                    address(this)\\n                )\\n            );\\n    }\\n}\\n\",\"keccak256\":\"0x03d73b1cb4915aee716e6245c0bb79335bbe0510cf16a08b2228151eb35d3183\",\"license\":\"MIT\"},\"@thesis/solidity-contracts/contracts/token/IApproveAndCall.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity ^0.8.4;\\n\\n/// @notice An interface that should be implemented by tokens supporting\\n///         `approveAndCall`/`receiveApproval` pattern.\\ninterface IApproveAndCall {\\n    /// @notice Executes `receiveApproval` function on spender as specified in\\n    ///         `IReceiveApproval` interface. Approves spender to withdraw from\\n    ///         the caller multiple times, up to the `amount`. If this\\n    ///         function is called again, it overwrites the current allowance\\n    ///         with `amount`. Reverts if the approval reverted or if\\n    ///         `receiveApproval` call on the spender reverted.\\n    function approveAndCall(\\n        address spender,\\n        uint256 amount,\\n        bytes memory extraData\\n    ) external returns (bool);\\n}\\n\",\"keccak256\":\"0x393d18ef81a57dcc96fff4c340cc2945deaebb37b9796c322cf2bc96872c3df8\",\"license\":\"MIT\"},\"@thesis/solidity-contracts/contracts/token/IERC20WithPermit.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity ^0.8.4;\\n\\nimport \\\"@openzeppelin/contracts/token/ERC20/IERC20.sol\\\";\\nimport \\\"@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol\\\";\\n\\nimport \\\"./IApproveAndCall.sol\\\";\\n\\n/// @title  IERC20WithPermit\\n/// @notice Burnable ERC20 token with EIP2612 permit functionality. User can\\n///         authorize a transfer of their token with a signature conforming\\n///         EIP712 standard instead of an on-chain transaction from their\\n///         address. Anyone can submit this signature on the user's behalf by\\n///         calling the permit function, as specified in EIP2612 standard,\\n///         paying gas fees, and possibly performing other actions in the same\\n///         transaction.\\ninterface IERC20WithPermit is IERC20, IERC20Metadata, IApproveAndCall {\\n    /// @notice EIP2612 approval made with secp256k1 signature.\\n    ///         Users can authorize a transfer of their tokens with a signature\\n    ///         conforming EIP712 standard, rather than an on-chain transaction\\n    ///         from their address. Anyone can submit this signature on the\\n    ///         user's behalf by calling the permit function, paying gas fees,\\n    ///         and possibly performing other actions in the same transaction.\\n    /// @dev    The deadline argument can be set to `type(uint256).max to create\\n    ///         permits that effectively never expire.\\n    function permit(\\n        address owner,\\n        address spender,\\n        uint256 amount,\\n        uint256 deadline,\\n        uint8 v,\\n        bytes32 r,\\n        bytes32 s\\n    ) external;\\n\\n    /// @notice Destroys `amount` tokens from the caller.\\n    function burn(uint256 amount) external;\\n\\n    /// @notice Destroys `amount` of tokens from `account`, deducting the amount\\n    ///         from caller's allowance.\\n    function burnFrom(address account, uint256 amount) external;\\n\\n    /// @notice Returns hash of EIP712 Domain struct with the token name as\\n    ///         a signing domain and token contract as a verifying contract.\\n    ///         Used to construct EIP2612 signature provided to `permit`\\n    ///         function.\\n    /* solhint-disable-next-line func-name-mixedcase */\\n    function DOMAIN_SEPARATOR() external view returns (bytes32);\\n\\n    /// @notice Returns the current nonce for EIP2612 permission for the\\n    ///         provided token owner for a replay protection. Used to construct\\n    ///         EIP2612 signature provided to `permit` function.\\n    function nonces(address owner) external view returns (uint256);\\n\\n    /// @notice Returns EIP2612 Permit message hash. Used to construct EIP2612\\n    ///         signature provided to `permit` function.\\n    /* solhint-disable-next-line func-name-mixedcase */\\n    function PERMIT_TYPEHASH() external pure returns (bytes32);\\n}\\n\",\"keccak256\":\"0xe6ecbd8d29688969b11bedb4ce1d076be09a69c97d31ae89c913734ece5d61fc\",\"license\":\"MIT\"},\"@thesis/solidity-contracts/contracts/token/IReceiveApproval.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity ^0.8.4;\\n\\n/// @notice An interface that should be implemented by contracts supporting\\n///         `approveAndCall`/`receiveApproval` pattern.\\ninterface IReceiveApproval {\\n    /// @notice Receives approval to spend tokens. Called as a result of\\n    ///         `approveAndCall` call on the token.\\n    function receiveApproval(\\n        address from,\\n        uint256 amount,\\n        address token,\\n        bytes calldata extraData\\n    ) external;\\n}\\n\",\"keccak256\":\"0x6a30d83ad230548b1e7839737affc8489a035314209de14b89dbef7fb0f66395\",\"license\":\"MIT\"},\"@thesis/solidity-contracts/contracts/token/MisfundRecovery.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity ^0.8.4;\\n\\nimport \\\"@openzeppelin/contracts/access/Ownable.sol\\\";\\nimport \\\"@openzeppelin/contracts/token/ERC20/IERC20.sol\\\";\\nimport \\\"@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol\\\";\\nimport \\\"@openzeppelin/contracts/token/ERC721/IERC721.sol\\\";\\n\\n/// @title  MisfundRecovery\\n/// @notice Allows the owner of the token contract extending MisfundRecovery\\n///         to recover any ERC20 and ERC721 sent mistakenly to the token\\n///         contract address.\\ncontract MisfundRecovery is Ownable {\\n    using SafeERC20 for IERC20;\\n\\n    function recoverERC20(\\n        IERC20 token,\\n        address recipient,\\n        uint256 amount\\n    ) external onlyOwner {\\n        token.safeTransfer(recipient, amount);\\n    }\\n\\n    function recoverERC721(\\n        IERC721 token,\\n        address recipient,\\n        uint256 tokenId,\\n        bytes calldata data\\n    ) external onlyOwner {\\n        token.safeTransferFrom(address(this), recipient, tokenId, data);\\n    }\\n}\\n\",\"keccak256\":\"0xbbfea02bf20e2a6df5a497bbc05c7540a3b7c7dfb8b1feeaffef7f6b8ba65d65\",\"license\":\"MIT\"},\"contracts/token/TBTC.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity 0.8.4;\\n\\nimport \\\"@thesis/solidity-contracts/contracts/token/ERC20WithPermit.sol\\\";\\nimport \\\"@thesis/solidity-contracts/contracts/token/MisfundRecovery.sol\\\";\\n\\ncontract TBTC is ERC20WithPermit, MisfundRecovery {\\n    constructor() ERC20WithPermit(\\\"tBTC v2\\\", \\\"tBTC\\\") {}\\n}\\n\",\"keccak256\":\"0xc139767d54b9d525f99cee906d2f6ee5b0c049fa97606e39ed88ccc4858c1ad3\",\"license\":\"MIT\"}},\"version\":1}",
+  "bytecode": 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+  "devdoc": {
+    "kind": "dev",
+    "methods": {
+      "approve(address,uint256)": {
+        "details": "If the `amount` is set to `type(uint256).max` then      `transferFrom` and `burnFrom` will not reduce an allowance.      Beware that changing an allowance with this method brings the risk      that someone may use both the old and the new allowance by      unfortunate transaction ordering. One possible solution to mitigate      this race condition is to first reduce the spender's allowance to 0      and set the desired value afterwards:      https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729",
+        "returns": {
+          "_0": "True if the operation succeeded."
+        }
+      },
+      "approveAndCall(address,uint256,bytes)": {
+        "details": "If the `amount` is set to `type(uint256).max` then      `transferFrom` and `burnFrom` will not reduce an allowance.",
+        "returns": {
+          "_0": "True if both approval and `receiveApproval` calls succeeded."
+        }
+      },
+      "burn(uint256)": {
+        "details": "Requirements:       - the caller must have a balance of at least `amount`."
+      },
+      "burnFrom(address,uint256)": {
+        "details": "Requirements:      - `account` must have a balance of at least `amount`,      - the caller must have allowance for `account`'s tokens of at least        `amount`."
+      },
+      "mint(address,uint256)": {
+        "details": "Requirements:      - `recipient` cannot be the zero address."
+      },
+      "owner()": {
+        "details": "Returns the address of the current owner."
+      },
+      "permit(address,address,uint256,uint256,uint8,bytes32,bytes32)": {
+        "details": "The deadline argument can be set to `type(uint256).max to create         permits that effectively never expire.  If the `amount` is set         to `type(uint256).max` then `transferFrom` and `burnFrom` will         not reduce an allowance."
+      },
+      "renounceOwnership()": {
+        "details": "Leaves the contract without owner. It will not be possible to call `onlyOwner` functions anymore. Can only be called by the current owner. NOTE: Renouncing ownership will leave the contract without an owner, thereby removing any functionality that is only available to the owner."
+      },
+      "transfer(address,uint256)": {
+        "details": "Requirements:       - `recipient` cannot be the zero address,       - the caller must have a balance of at least `amount`.",
+        "returns": {
+          "_0": "True if the operation succeeded, reverts otherwise."
+        }
+      },
+      "transferFrom(address,address,uint256)": {
+        "details": "Requirements:      - `sender` and `recipient` cannot be the zero address,      - `sender` must have a balance of at least `amount`,      - the caller must have allowance for `sender`'s tokens of at least        `amount`.",
+        "returns": {
+          "_0": "True if the operation succeeded, reverts otherwise."
+        }
+      },
+      "transferOwnership(address)": {
+        "details": "Transfers ownership of the contract to a new account (`newOwner`). Can only be called by the current owner."
+      }
+    },
+    "version": 1
+  },
+  "userdoc": {
+    "kind": "user",
+    "methods": {
+      "DOMAIN_SEPARATOR()": {
+        "notice": "Returns hash of EIP712 Domain struct with the token name as         a signing domain and token contract as a verifying contract.         Used to construct EIP2612 signature provided to `permit`         function."
+      },
+      "PERMIT_TYPEHASH()": {
+        "notice": "Returns EIP2612 Permit message hash. Used to construct EIP2612         signature provided to `permit` function."
+      },
+      "allowance(address,address)": {
+        "notice": "The remaining number of tokens that spender will be         allowed to spend on behalf of owner through `transferFrom` and         `burnFrom`. This is zero by default."
+      },
+      "approve(address,uint256)": {
+        "notice": "Sets `amount` as the allowance of `spender` over the caller's         tokens."
+      },
+      "approveAndCall(address,uint256,bytes)": {
+        "notice": "Calls `receiveApproval` function on spender previously approving         the spender to withdraw from the caller multiple times, up to         the `amount` amount. If this function is called again, it         overwrites the current allowance with `amount`. Reverts if the         approval reverted or if `receiveApproval` call on the spender         reverted."
+      },
+      "balanceOf(address)": {
+        "notice": "The amount of tokens owned by the given account."
+      },
+      "burn(uint256)": {
+        "notice": "Destroys `amount` tokens from the caller."
+      },
+      "burnFrom(address,uint256)": {
+        "notice": "Destroys `amount` of tokens from `account` using the allowance         mechanism. `amount` is then deducted from the caller's allowance         unless the allowance was made for `type(uint256).max`."
+      },
+      "decimals()": {
+        "notice": "The decimals places of the token."
+      },
+      "mint(address,uint256)": {
+        "notice": "Creates `amount` tokens and assigns them to `account`,         increasing the total supply."
+      },
+      "name()": {
+        "notice": "The name of the token."
+      },
+      "nonces(address)": {
+        "notice": "Returns the current nonce for EIP2612 permission for the         provided token owner for a replay protection. Used to construct         EIP2612 signature provided to `permit` function."
+      },
+      "permit(address,address,uint256,uint256,uint8,bytes32,bytes32)": {
+        "notice": "EIP2612 approval made with secp256k1 signature.         Users can authorize a transfer of their tokens with a signature         conforming EIP712 standard, rather than an on-chain transaction         from their address. Anyone can submit this signature on the         user's behalf by calling the permit function, paying gas fees,         and possibly performing other actions in the same transaction."
+      },
+      "symbol()": {
+        "notice": "The symbol of the token."
+      },
+      "totalSupply()": {
+        "notice": "The amount of tokens in existence."
+      },
+      "transfer(address,uint256)": {
+        "notice": "Moves `amount` tokens from the caller's account to `recipient`."
+      },
+      "transferFrom(address,address,uint256)": {
+        "notice": "Moves `amount` tokens from `sender` to `recipient` using the         allowance mechanism. `amount` is then deducted from the caller's         allowance unless the allowance was made for `type(uint256).max`."
+      }
+    },
+    "version": 1
+  },
+  "storageLayout": {
+    "storage": [
+      {
+        "astId": 7,
+        "contract": "contracts/token/TBTC.sol:TBTC",
+        "label": "_owner",
+        "offset": 0,
+        "slot": "0",
+        "type": "t_address"
+      },
+      {
+        "astId": 1981,
+        "contract": "contracts/token/TBTC.sol:TBTC",
+        "label": "balanceOf",
+        "offset": 0,
+        "slot": "1",
+        "type": "t_mapping(t_address,t_uint256)"
+      },
+      {
+        "astId": 1989,
+        "contract": "contracts/token/TBTC.sol:TBTC",
+        "label": "allowance",
+        "offset": 0,
+        "slot": "2",
+        "type": "t_mapping(t_address,t_mapping(t_address,t_uint256))"
+      },
+      {
+        "astId": 1995,
+        "contract": "contracts/token/TBTC.sol:TBTC",
+        "label": "nonces",
+        "offset": 0,
+        "slot": "3",
+        "type": "t_mapping(t_address,t_uint256)"
+      },
+      {
+        "astId": 2010,
+        "contract": "contracts/token/TBTC.sol:TBTC",
+        "label": "totalSupply",
+        "offset": 0,
+        "slot": "4",
+        "type": "t_uint256"
+      },
+      {
+        "astId": 2014,
+        "contract": "contracts/token/TBTC.sol:TBTC",
+        "label": "name",
+        "offset": 0,
+        "slot": "5",
+        "type": "t_string_storage"
+      },
+      {
+        "astId": 2018,
+        "contract": "contracts/token/TBTC.sol:TBTC",
+        "label": "symbol",
+        "offset": 0,
+        "slot": "6",
+        "type": "t_string_storage"
+      }
+    ],
+    "types": {
+      "t_address": {
+        "encoding": "inplace",
+        "label": "address",
+        "numberOfBytes": "20"
+      },
+      "t_mapping(t_address,t_mapping(t_address,t_uint256))": {
+        "encoding": "mapping",
+        "key": "t_address",
+        "label": "mapping(address => mapping(address => uint256))",
+        "numberOfBytes": "32",
+        "value": "t_mapping(t_address,t_uint256)"
+      },
+      "t_mapping(t_address,t_uint256)": {
+        "encoding": "mapping",
+        "key": "t_address",
+        "label": "mapping(address => uint256)",
+        "numberOfBytes": "32",
+        "value": "t_uint256"
+      },
+      "t_string_storage": {
+        "encoding": "bytes",
+        "label": "string",
+        "numberOfBytes": "32"
+      },
+      "t_uint256": {
+        "encoding": "inplace",
+        "label": "uint256",
+        "numberOfBytes": "32"
+      }
+    }
+  }
+}
diff --git a/core/external/sepolia/TBTC.json b/core/external/sepolia/TBTC.json
new file mode 100644
index 000000000..d12d88f04
--- /dev/null
+++ b/core/external/sepolia/TBTC.json
@@ -0,0 +1,763 @@
+{
+  "address": "0x517f2982701695D4E52f1ECFBEf3ba31Df470161",
+  "abi": [
+    {
+      "inputs": [],
+      "stateMutability": "nonpayable",
+      "type": "constructor"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "owner",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "spender",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "internalType": "uint256",
+          "name": "value",
+          "type": "uint256"
+        }
+      ],
+      "name": "Approval",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "previousOwner",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "newOwner",
+          "type": "address"
+        }
+      ],
+      "name": "OwnershipTransferred",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "from",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "to",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "internalType": "uint256",
+          "name": "value",
+          "type": "uint256"
+        }
+      ],
+      "name": "Transfer",
+      "type": "event"
+    },
+    {
+      "inputs": [],
+      "name": "DOMAIN_SEPARATOR",
+      "outputs": [
+        {
+          "internalType": "bytes32",
+          "name": "",
+          "type": "bytes32"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [],
+      "name": "PERMIT_TYPEHASH",
+      "outputs": [
+        {
+          "internalType": "bytes32",
+          "name": "",
+          "type": "bytes32"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "",
+          "type": "address"
+        },
+        {
+          "internalType": "address",
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "name": "allowance",
+      "outputs": [
+        {
+          "internalType": "uint256",
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "spender",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "amount",
+          "type": "uint256"
+        }
+      ],
+      "name": "approve",
+      "outputs": [
+        {
+          "internalType": "bool",
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "spender",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "amount",
+          "type": "uint256"
+        },
+        {
+          "internalType": "bytes",
+          "name": "extraData",
+          "type": "bytes"
+        }
+      ],
+      "name": "approveAndCall",
+      "outputs": [
+        {
+          "internalType": "bool",
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "name": "balanceOf",
+      "outputs": [
+        {
+          "internalType": "uint256",
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "uint256",
+          "name": "amount",
+          "type": "uint256"
+        }
+      ],
+      "name": "burn",
+      "outputs": [],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "account",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "amount",
+          "type": "uint256"
+        }
+      ],
+      "name": "burnFrom",
+      "outputs": [],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [],
+      "name": "cachedChainId",
+      "outputs": [
+        {
+          "internalType": "uint256",
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [],
+      "name": "cachedDomainSeparator",
+      "outputs": [
+        {
+          "internalType": "bytes32",
+          "name": "",
+          "type": "bytes32"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [],
+      "name": "decimals",
+      "outputs": [
+        {
+          "internalType": "uint8",
+          "name": "",
+          "type": "uint8"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "recipient",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "amount",
+          "type": "uint256"
+        }
+      ],
+      "name": "mint",
+      "outputs": [],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [],
+      "name": "name",
+      "outputs": [
+        {
+          "internalType": "string",
+          "name": "",
+          "type": "string"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "name": "nonce",
+      "outputs": [
+        {
+          "internalType": "uint256",
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [],
+      "name": "owner",
+      "outputs": [
+        {
+          "internalType": "address",
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "owner",
+          "type": "address"
+        },
+        {
+          "internalType": "address",
+          "name": "spender",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "amount",
+          "type": "uint256"
+        },
+        {
+          "internalType": "uint256",
+          "name": "deadline",
+          "type": "uint256"
+        },
+        {
+          "internalType": "uint8",
+          "name": "v",
+          "type": "uint8"
+        },
+        {
+          "internalType": "bytes32",
+          "name": "r",
+          "type": "bytes32"
+        },
+        {
+          "internalType": "bytes32",
+          "name": "s",
+          "type": "bytes32"
+        }
+      ],
+      "name": "permit",
+      "outputs": [],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "contract IERC20",
+          "name": "token",
+          "type": "address"
+        },
+        {
+          "internalType": "address",
+          "name": "recipient",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "amount",
+          "type": "uint256"
+        }
+      ],
+      "name": "recoverERC20",
+      "outputs": [],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "contract IERC721",
+          "name": "token",
+          "type": "address"
+        },
+        {
+          "internalType": "address",
+          "name": "recipient",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "tokenId",
+          "type": "uint256"
+        },
+        {
+          "internalType": "bytes",
+          "name": "data",
+          "type": "bytes"
+        }
+      ],
+      "name": "recoverERC721",
+      "outputs": [],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [],
+      "name": "renounceOwnership",
+      "outputs": [],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [],
+      "name": "symbol",
+      "outputs": [
+        {
+          "internalType": "string",
+          "name": "",
+          "type": "string"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [],
+      "name": "totalSupply",
+      "outputs": [
+        {
+          "internalType": "uint256",
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "recipient",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "amount",
+          "type": "uint256"
+        }
+      ],
+      "name": "transfer",
+      "outputs": [
+        {
+          "internalType": "bool",
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "spender",
+          "type": "address"
+        },
+        {
+          "internalType": "address",
+          "name": "recipient",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "amount",
+          "type": "uint256"
+        }
+      ],
+      "name": "transferFrom",
+      "outputs": [
+        {
+          "internalType": "bool",
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "newOwner",
+          "type": "address"
+        }
+      ],
+      "name": "transferOwnership",
+      "outputs": [],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    }
+  ],
+  "transactionHash": "0x8f26955ab7df8e1c4a4d1b739a5b21e95c2a4233d9fda88b39ed9508a3f61205",
+  "receipt": {
+    "to": null,
+    "from": "0x68ad60CC5e8f3B7cC53beaB321cf0e6036962dBc",
+    "contractAddress": "0x517f2982701695D4E52f1ECFBEf3ba31Df470161",
+    "transactionIndex": 23,
+    "gasUsed": "1590745",
+    "logsBloom": "0x00000000000000000000000000000000000000000000000000800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000200000001000000000000000000000000000000000000020000000000000000000800000000000000000000000000000000400000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000001020000000000000000000000000000000000000000000000000000800000000000002",
+    "blockHash": "0x6d9f0e441a93aae381458f444c20091301cd4f968b9ceb3fdec6a3ce63efa69d",
+    "transactionHash": "0x8f26955ab7df8e1c4a4d1b739a5b21e95c2a4233d9fda88b39ed9508a3f61205",
+    "logs": [
+      {
+        "transactionIndex": 23,
+        "blockNumber": 4553001,
+        "transactionHash": "0x8f26955ab7df8e1c4a4d1b739a5b21e95c2a4233d9fda88b39ed9508a3f61205",
+        "address": "0x517f2982701695D4E52f1ECFBEf3ba31Df470161",
+        "topics": [
+          "0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0",
+          "0x0000000000000000000000000000000000000000000000000000000000000000",
+          "0x00000000000000000000000068ad60cc5e8f3b7cc53beab321cf0e6036962dbc"
+        ],
+        "data": "0x",
+        "logIndex": 142,
+        "blockHash": "0x6d9f0e441a93aae381458f444c20091301cd4f968b9ceb3fdec6a3ce63efa69d"
+      }
+    ],
+    "blockNumber": 4553001,
+    "cumulativeGasUsed": "7290511",
+    "status": 1,
+    "byzantium": true
+  },
+  "args": [],
+  "numDeployments": 1,
+  "solcInputHash": "c44da59b12f2cc32a8b991146f34536b",
+  "metadata": "{\"compiler\":{\"version\":\"0.8.17+commit.8df45f5f\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"inputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"spender\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"value\",\"type\":\"uint256\"}],\"name\":\"Approval\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"previousOwner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"OwnershipTransferred\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"value\",\"type\":\"uint256\"}],\"name\":\"Transfer\",\"type\":\"event\"},{\"inputs\":[],\"name\":\"DOMAIN_SEPARATOR\",\"outputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"PERMIT_TYPEHASH\",\"outputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"name\":\"allowance\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"spender\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"approve\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"spender\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"extraData\",\"type\":\"bytes\"}],\"name\":\"approveAndCall\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"name\":\"balanceOf\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"burn\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"account\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"burnFrom\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"cachedChainId\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"cachedDomainSeparator\",\"outputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"decimals\",\"outputs\":[{\"internalType\":\"uint8\",\"name\":\"\",\"type\":\"uint8\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"mint\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"name\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"name\":\"nonce\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"owner\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"spender\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"deadline\",\"type\":\"uint256\"},{\"internalType\":\"uint8\",\"name\":\"v\",\"type\":\"uint8\"},{\"internalType\":\"bytes32\",\"name\":\"r\",\"type\":\"bytes32\"},{\"internalType\":\"bytes32\",\"name\":\"s\",\"type\":\"bytes32\"}],\"name\":\"permit\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"contract IERC20\",\"name\":\"token\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"recoverERC20\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"contract IERC721\",\"name\":\"token\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"recoverERC721\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"renounceOwnership\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"symbol\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"totalSupply\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"transfer\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"spender\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"transferFrom\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"transferOwnership\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"}],\"devdoc\":{\"kind\":\"dev\",\"methods\":{\"approve(address,uint256)\":{\"details\":\"If the `amount` is set to `type(uint256).max` then      `transferFrom` and `burnFrom` will not reduce an allowance.      Beware that changing an allowance with this method brings the risk      that someone may use both the old and the new allowance by      unfortunate transaction ordering. One possible solution to mitigate      this race condition is to first reduce the spender's allowance to 0      and set the desired value afterwards:      https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\",\"returns\":{\"_0\":\"True if the operation succeeded.\"}},\"approveAndCall(address,uint256,bytes)\":{\"details\":\"If the `amount` is set to `type(uint256).max` then      `transferFrom` and `burnFrom` will not reduce an allowance.\",\"returns\":{\"_0\":\"True if both approval and `receiveApproval` calls succeeded.\"}},\"burn(uint256)\":{\"details\":\"Requirements:       - the caller must have a balance of at least `amount`.\"},\"burnFrom(address,uint256)\":{\"details\":\"Requirements:      - `account` must have a balance of at least `amount`,      - the caller must have allowance for `account`'s tokens of at least        `amount`.\"},\"mint(address,uint256)\":{\"details\":\"Requirements:      - `recipient` cannot be the zero address.\"},\"owner()\":{\"details\":\"Returns the address of the current owner.\"},\"permit(address,address,uint256,uint256,uint8,bytes32,bytes32)\":{\"details\":\"The deadline argument can be set to `type(uint256).max to create         permits that effectively never expire.  If the `amount` is set         to `type(uint256).max` then `transferFrom` and `burnFrom` will         not reduce an allowance.\"},\"renounceOwnership()\":{\"details\":\"Leaves the contract without owner. It will not be possible to call `onlyOwner` functions anymore. Can only be called by the current owner. NOTE: Renouncing ownership will leave the contract without an owner, thereby removing any functionality that is only available to the owner.\"},\"transfer(address,uint256)\":{\"details\":\"Requirements:       - `recipient` cannot be the zero address,       - the caller must have a balance of at least `amount`.\",\"returns\":{\"_0\":\"True if the operation succeeded, reverts otherwise.\"}},\"transferFrom(address,address,uint256)\":{\"details\":\"Requirements:      - `spender` and `recipient` cannot be the zero address,      - `spender` must have a balance of at least `amount`,      - the caller must have allowance for `spender`'s tokens of at least        `amount`.\",\"returns\":{\"_0\":\"True if the operation succeeded, reverts otherwise.\"}},\"transferOwnership(address)\":{\"details\":\"Transfers ownership of the contract to a new account (`newOwner`). Can only be called by the current owner.\"}},\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{\"DOMAIN_SEPARATOR()\":{\"notice\":\"Returns hash of EIP712 Domain struct with the token name as         a signing domain and token contract as a verifying contract.         Used to construct EIP2612 signature provided to `permit`         function.\"},\"PERMIT_TYPEHASH()\":{\"notice\":\"Returns EIP2612 Permit message hash. Used to construct EIP2612         signature provided to `permit` function.\"},\"allowance(address,address)\":{\"notice\":\"The remaining number of tokens that spender will be         allowed to spend on behalf of owner through `transferFrom` and         `burnFrom`. This is zero by default.\"},\"approve(address,uint256)\":{\"notice\":\"Sets `amount` as the allowance of `spender` over the caller's         tokens.\"},\"approveAndCall(address,uint256,bytes)\":{\"notice\":\"Calls `receiveApproval` function on spender previously approving         the spender to withdraw from the caller multiple times, up to         the `amount` amount. If this function is called again, it         overwrites the current allowance with `amount`. Reverts if the         approval reverted or if `receiveApproval` call on the spender         reverted.\"},\"balanceOf(address)\":{\"notice\":\"The amount of tokens owned by the given account.\"},\"burn(uint256)\":{\"notice\":\"Destroys `amount` tokens from the caller.\"},\"burnFrom(address,uint256)\":{\"notice\":\"Destroys `amount` of tokens from `account` using the allowance         mechanism. `amount` is then deducted from the caller's allowance         unless the allowance was made for `type(uint256).max`.\"},\"decimals()\":{\"notice\":\"The decimals places of the token.\"},\"mint(address,uint256)\":{\"notice\":\"Creates `amount` tokens and assigns them to `account`,         increasing the total supply.\"},\"name()\":{\"notice\":\"The name of the token.\"},\"nonce(address)\":{\"notice\":\"Returns the current nonce for EIP2612 permission for the         provided token owner for a replay protection. Used to construct         EIP2612 signature provided to `permit` function.\"},\"permit(address,address,uint256,uint256,uint8,bytes32,bytes32)\":{\"notice\":\"EIP2612 approval made with secp256k1 signature.         Users can authorize a transfer of their tokens with a signature         conforming EIP712 standard, rather than an on-chain transaction         from their address. Anyone can submit this signature on the         user's behalf by calling the permit function, paying gas fees,         and possibly performing other actions in the same transaction.\"},\"symbol()\":{\"notice\":\"The symbol of the token.\"},\"totalSupply()\":{\"notice\":\"The amount of tokens in existence.\"},\"transfer(address,uint256)\":{\"notice\":\"Moves `amount` tokens from the caller's account to `recipient`.\"},\"transferFrom(address,address,uint256)\":{\"notice\":\"Moves `amount` tokens from `spender` to `recipient` using the         allowance mechanism. `amount` is then deducted from the caller's         allowance unless the allowance was made for `type(uint256).max`.\"}},\"version\":1}},\"settings\":{\"compilationTarget\":{\"contracts/token/TBTC.sol\":\"TBTC\"},\"evmVersion\":\"london\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\",\"useLiteralContent\":true},\"optimizer\":{\"enabled\":true,\"runs\":1000},\"remappings\":[]},\"sources\":{\"@openzeppelin/contracts/access/Ownable.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)\\n\\npragma solidity ^0.8.0;\\n\\nimport \\\"../utils/Context.sol\\\";\\n\\n/**\\n * @dev Contract module which provides a basic access control mechanism, where\\n * there is an account (an owner) that can be granted exclusive access to\\n * specific functions.\\n *\\n * By default, the owner account will be the one that deploys the contract. This\\n * can later be changed with {transferOwnership}.\\n *\\n * This module is used through inheritance. It will make available the modifier\\n * `onlyOwner`, which can be applied to your functions to restrict their use to\\n * the owner.\\n */\\nabstract contract Ownable is Context {\\n    address private _owner;\\n\\n    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\\n\\n    /**\\n     * @dev Initializes the contract setting the deployer as the initial owner.\\n     */\\n    constructor() {\\n        _transferOwnership(_msgSender());\\n    }\\n\\n    /**\\n     * @dev Throws if called by any account other than the owner.\\n     */\\n    modifier onlyOwner() {\\n        _checkOwner();\\n        _;\\n    }\\n\\n    /**\\n     * @dev Returns the address of the current owner.\\n     */\\n    function owner() public view virtual returns (address) {\\n        return _owner;\\n    }\\n\\n    /**\\n     * @dev Throws if the sender is not the owner.\\n     */\\n    function _checkOwner() internal view virtual {\\n        require(owner() == _msgSender(), \\\"Ownable: caller is not the owner\\\");\\n    }\\n\\n    /**\\n     * @dev Leaves the contract without owner. It will not be possible to call\\n     * `onlyOwner` functions anymore. Can only be called by the current owner.\\n     *\\n     * NOTE: Renouncing ownership will leave the contract without an owner,\\n     * thereby removing any functionality that is only available to the owner.\\n     */\\n    function renounceOwnership() public virtual onlyOwner {\\n        _transferOwnership(address(0));\\n    }\\n\\n    /**\\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\\n     * Can only be called by the current owner.\\n     */\\n    function transferOwnership(address newOwner) public virtual onlyOwner {\\n        require(newOwner != address(0), \\\"Ownable: new owner is the zero address\\\");\\n        _transferOwnership(newOwner);\\n    }\\n\\n    /**\\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\\n     * Internal function without access restriction.\\n     */\\n    function _transferOwnership(address newOwner) internal virtual {\\n        address oldOwner = _owner;\\n        _owner = newOwner;\\n        emit OwnershipTransferred(oldOwner, newOwner);\\n    }\\n}\\n\",\"keccak256\":\"0xa94b34880e3c1b0b931662cb1c09e5dfa6662f31cba80e07c5ee71cd135c9673\",\"license\":\"MIT\"},\"@openzeppelin/contracts/token/ERC20/IERC20.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)\\n\\npragma solidity ^0.8.0;\\n\\n/**\\n * @dev Interface of the ERC20 standard as defined in the EIP.\\n */\\ninterface IERC20 {\\n    /**\\n     * @dev Emitted when `value` tokens are moved from one account (`from`) to\\n     * another (`to`).\\n     *\\n     * Note that `value` may be zero.\\n     */\\n    event Transfer(address indexed from, address indexed to, uint256 value);\\n\\n    /**\\n     * @dev Emitted when the allowance of a `spender` for an `owner` is set by\\n     * a call to {approve}. `value` is the new allowance.\\n     */\\n    event Approval(address indexed owner, address indexed spender, uint256 value);\\n\\n    /**\\n     * @dev Returns the amount of tokens in existence.\\n     */\\n    function totalSupply() external view returns (uint256);\\n\\n    /**\\n     * @dev Returns the amount of tokens owned by `account`.\\n     */\\n    function balanceOf(address account) external view returns (uint256);\\n\\n    /**\\n     * @dev Moves `amount` tokens from the caller's account to `to`.\\n     *\\n     * Returns a boolean value indicating whether the operation succeeded.\\n     *\\n     * Emits a {Transfer} event.\\n     */\\n    function transfer(address to, uint256 amount) external returns (bool);\\n\\n    /**\\n     * @dev Returns the remaining number of tokens that `spender` will be\\n     * allowed to spend on behalf of `owner` through {transferFrom}. This is\\n     * zero by default.\\n     *\\n     * This value changes when {approve} or {transferFrom} are called.\\n     */\\n    function allowance(address owner, address spender) external view returns (uint256);\\n\\n    /**\\n     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\\n     *\\n     * Returns a boolean value indicating whether the operation succeeded.\\n     *\\n     * IMPORTANT: Beware that changing an allowance with this method brings the risk\\n     * that someone may use both the old and the new allowance by unfortunate\\n     * transaction ordering. One possible solution to mitigate this race\\n     * condition is to first reduce the spender's allowance to 0 and set the\\n     * desired value afterwards:\\n     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\\n     *\\n     * Emits an {Approval} event.\\n     */\\n    function approve(address spender, uint256 amount) external returns (bool);\\n\\n    /**\\n     * @dev Moves `amount` tokens from `from` to `to` using the\\n     * allowance mechanism. `amount` is then deducted from the caller's\\n     * allowance.\\n     *\\n     * Returns a boolean value indicating whether the operation succeeded.\\n     *\\n     * Emits a {Transfer} event.\\n     */\\n    function transferFrom(\\n        address from,\\n        address to,\\n        uint256 amount\\n    ) external returns (bool);\\n}\\n\",\"keccak256\":\"0x9750c6b834f7b43000631af5cc30001c5f547b3ceb3635488f140f60e897ea6b\",\"license\":\"MIT\"},\"@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)\\n\\npragma solidity ^0.8.0;\\n\\nimport \\\"../IERC20.sol\\\";\\n\\n/**\\n * @dev Interface for the optional metadata functions from the ERC20 standard.\\n *\\n * _Available since v4.1._\\n */\\ninterface IERC20Metadata is IERC20 {\\n    /**\\n     * @dev Returns the name of the token.\\n     */\\n    function name() external view returns (string memory);\\n\\n    /**\\n     * @dev Returns the symbol of the token.\\n     */\\n    function symbol() external view returns (string memory);\\n\\n    /**\\n     * @dev Returns the decimals places of the token.\\n     */\\n    function decimals() external view returns (uint8);\\n}\\n\",\"keccak256\":\"0x8de418a5503946cabe331f35fe242d3201a73f67f77aaeb7110acb1f30423aca\",\"license\":\"MIT\"},\"@openzeppelin/contracts/token/ERC20/extensions/draft-IERC20Permit.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol)\\n\\npragma solidity ^0.8.0;\\n\\n/**\\n * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in\\n * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].\\n *\\n * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by\\n * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't\\n * need to send a transaction, and thus is not required to hold Ether at all.\\n */\\ninterface IERC20Permit {\\n    /**\\n     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,\\n     * given ``owner``'s signed approval.\\n     *\\n     * IMPORTANT: The same issues {IERC20-approve} has related to transaction\\n     * ordering also apply here.\\n     *\\n     * Emits an {Approval} event.\\n     *\\n     * Requirements:\\n     *\\n     * - `spender` cannot be the zero address.\\n     * - `deadline` must be a timestamp in the future.\\n     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`\\n     * over the EIP712-formatted function arguments.\\n     * - the signature must use ``owner``'s current nonce (see {nonces}).\\n     *\\n     * For more information on the signature format, see the\\n     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP\\n     * section].\\n     */\\n    function permit(\\n        address owner,\\n        address spender,\\n        uint256 value,\\n        uint256 deadline,\\n        uint8 v,\\n        bytes32 r,\\n        bytes32 s\\n    ) external;\\n\\n    /**\\n     * @dev Returns the current nonce for `owner`. This value must be\\n     * included whenever a signature is generated for {permit}.\\n     *\\n     * Every successful call to {permit} increases ``owner``'s nonce by one. This\\n     * prevents a signature from being used multiple times.\\n     */\\n    function nonces(address owner) external view returns (uint256);\\n\\n    /**\\n     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.\\n     */\\n    // solhint-disable-next-line func-name-mixedcase\\n    function DOMAIN_SEPARATOR() external view returns (bytes32);\\n}\\n\",\"keccak256\":\"0xf41ca991f30855bf80ffd11e9347856a517b977f0a6c2d52e6421a99b7840329\",\"license\":\"MIT\"},\"@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/utils/SafeERC20.sol)\\n\\npragma solidity ^0.8.0;\\n\\nimport \\\"../IERC20.sol\\\";\\nimport \\\"../extensions/draft-IERC20Permit.sol\\\";\\nimport \\\"../../../utils/Address.sol\\\";\\n\\n/**\\n * @title SafeERC20\\n * @dev Wrappers around ERC20 operations that throw on failure (when the token\\n * contract returns false). Tokens that return no value (and instead revert or\\n * throw on failure) are also supported, non-reverting calls are assumed to be\\n * successful.\\n * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,\\n * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.\\n */\\nlibrary SafeERC20 {\\n    using Address for address;\\n\\n    function safeTransfer(\\n        IERC20 token,\\n        address to,\\n        uint256 value\\n    ) internal {\\n        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));\\n    }\\n\\n    function safeTransferFrom(\\n        IERC20 token,\\n        address from,\\n        address to,\\n        uint256 value\\n    ) internal {\\n        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));\\n    }\\n\\n    /**\\n     * @dev Deprecated. This function has issues similar to the ones found in\\n     * {IERC20-approve}, and its usage is discouraged.\\n     *\\n     * Whenever possible, use {safeIncreaseAllowance} and\\n     * {safeDecreaseAllowance} instead.\\n     */\\n    function safeApprove(\\n        IERC20 token,\\n        address spender,\\n        uint256 value\\n    ) internal {\\n        // safeApprove should only be called when setting an initial allowance,\\n        // or when resetting it to zero. To increase and decrease it, use\\n        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'\\n        require(\\n            (value == 0) || (token.allowance(address(this), spender) == 0),\\n            \\\"SafeERC20: approve from non-zero to non-zero allowance\\\"\\n        );\\n        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));\\n    }\\n\\n    function safeIncreaseAllowance(\\n        IERC20 token,\\n        address spender,\\n        uint256 value\\n    ) internal {\\n        uint256 newAllowance = token.allowance(address(this), spender) + value;\\n        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\\n    }\\n\\n    function safeDecreaseAllowance(\\n        IERC20 token,\\n        address spender,\\n        uint256 value\\n    ) internal {\\n        unchecked {\\n            uint256 oldAllowance = token.allowance(address(this), spender);\\n            require(oldAllowance >= value, \\\"SafeERC20: decreased allowance below zero\\\");\\n            uint256 newAllowance = oldAllowance - value;\\n            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\\n        }\\n    }\\n\\n    function safePermit(\\n        IERC20Permit token,\\n        address owner,\\n        address spender,\\n        uint256 value,\\n        uint256 deadline,\\n        uint8 v,\\n        bytes32 r,\\n        bytes32 s\\n    ) internal {\\n        uint256 nonceBefore = token.nonces(owner);\\n        token.permit(owner, spender, value, deadline, v, r, s);\\n        uint256 nonceAfter = token.nonces(owner);\\n        require(nonceAfter == nonceBefore + 1, \\\"SafeERC20: permit did not succeed\\\");\\n    }\\n\\n    /**\\n     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement\\n     * on the return value: the return value is optional (but if data is returned, it must not be false).\\n     * @param token The token targeted by the call.\\n     * @param data The call data (encoded using abi.encode or one of its variants).\\n     */\\n    function _callOptionalReturn(IERC20 token, bytes memory data) private {\\n        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since\\n        // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that\\n        // the target address contains contract code and also asserts for success in the low-level call.\\n\\n        bytes memory returndata = address(token).functionCall(data, \\\"SafeERC20: low-level call failed\\\");\\n        if (returndata.length > 0) {\\n            // Return data is optional\\n            require(abi.decode(returndata, (bool)), \\\"SafeERC20: ERC20 operation did not succeed\\\");\\n        }\\n    }\\n}\\n\",\"keccak256\":\"0x9b72f93be69ca894d8492c244259615c4a742afc8d63720dbc8bb81087d9b238\",\"license\":\"MIT\"},\"@openzeppelin/contracts/token/ERC721/IERC721.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/IERC721.sol)\\n\\npragma solidity ^0.8.0;\\n\\nimport \\\"../../utils/introspection/IERC165.sol\\\";\\n\\n/**\\n * @dev Required interface of an ERC721 compliant contract.\\n */\\ninterface IERC721 is IERC165 {\\n    /**\\n     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.\\n     */\\n    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\\n\\n    /**\\n     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.\\n     */\\n    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\\n\\n    /**\\n     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.\\n     */\\n    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\\n\\n    /**\\n     * @dev Returns the number of tokens in ``owner``'s account.\\n     */\\n    function balanceOf(address owner) external view returns (uint256 balance);\\n\\n    /**\\n     * @dev Returns the owner of the `tokenId` token.\\n     *\\n     * Requirements:\\n     *\\n     * - `tokenId` must exist.\\n     */\\n    function ownerOf(uint256 tokenId) external view returns (address owner);\\n\\n    /**\\n     * @dev Safely transfers `tokenId` token from `from` to `to`.\\n     *\\n     * Requirements:\\n     *\\n     * - `from` cannot be the zero address.\\n     * - `to` cannot be the zero address.\\n     * - `tokenId` token must exist and be owned by `from`.\\n     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\\n     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\\n     *\\n     * Emits a {Transfer} event.\\n     */\\n    function safeTransferFrom(\\n        address from,\\n        address to,\\n        uint256 tokenId,\\n        bytes calldata data\\n    ) external;\\n\\n    /**\\n     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\\n     * are aware of the ERC721 protocol to prevent tokens from being forever locked.\\n     *\\n     * Requirements:\\n     *\\n     * - `from` cannot be the zero address.\\n     * - `to` cannot be the zero address.\\n     * - `tokenId` token must exist and be owned by `from`.\\n     * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.\\n     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\\n     *\\n     * Emits a {Transfer} event.\\n     */\\n    function safeTransferFrom(\\n        address from,\\n        address to,\\n        uint256 tokenId\\n    ) external;\\n\\n    /**\\n     * @dev Transfers `tokenId` token from `from` to `to`.\\n     *\\n     * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721\\n     * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must\\n     * understand this adds an external call which potentially creates a reentrancy vulnerability.\\n     *\\n     * Requirements:\\n     *\\n     * - `from` cannot be the zero address.\\n     * - `to` cannot be the zero address.\\n     * - `tokenId` token must be owned by `from`.\\n     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\\n     *\\n     * Emits a {Transfer} event.\\n     */\\n    function transferFrom(\\n        address from,\\n        address to,\\n        uint256 tokenId\\n    ) external;\\n\\n    /**\\n     * @dev Gives permission to `to` to transfer `tokenId` token to another account.\\n     * The approval is cleared when the token is transferred.\\n     *\\n     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.\\n     *\\n     * Requirements:\\n     *\\n     * - The caller must own the token or be an approved operator.\\n     * - `tokenId` must exist.\\n     *\\n     * Emits an {Approval} event.\\n     */\\n    function approve(address to, uint256 tokenId) external;\\n\\n    /**\\n     * @dev Approve or remove `operator` as an operator for the caller.\\n     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.\\n     *\\n     * Requirements:\\n     *\\n     * - The `operator` cannot be the caller.\\n     *\\n     * Emits an {ApprovalForAll} event.\\n     */\\n    function setApprovalForAll(address operator, bool _approved) external;\\n\\n    /**\\n     * @dev Returns the account approved for `tokenId` token.\\n     *\\n     * Requirements:\\n     *\\n     * - `tokenId` must exist.\\n     */\\n    function getApproved(uint256 tokenId) external view returns (address operator);\\n\\n    /**\\n     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\\n     *\\n     * See {setApprovalForAll}\\n     */\\n    function isApprovedForAll(address owner, address operator) external view returns (bool);\\n}\\n\",\"keccak256\":\"0xab28a56179c1db258c9bf5235b382698cb650debecb51b23d12be9e241374b68\",\"license\":\"MIT\"},\"@openzeppelin/contracts/utils/Address.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol)\\n\\npragma solidity ^0.8.1;\\n\\n/**\\n * @dev Collection of functions related to the address type\\n */\\nlibrary Address {\\n    /**\\n     * @dev Returns true if `account` is a contract.\\n     *\\n     * [IMPORTANT]\\n     * ====\\n     * It is unsafe to assume that an address for which this function returns\\n     * false is an externally-owned account (EOA) and not a contract.\\n     *\\n     * Among others, `isContract` will return false for the following\\n     * types of addresses:\\n     *\\n     *  - an externally-owned account\\n     *  - a contract in construction\\n     *  - an address where a contract will be created\\n     *  - an address where a contract lived, but was destroyed\\n     * ====\\n     *\\n     * [IMPORTANT]\\n     * ====\\n     * You shouldn't rely on `isContract` to protect against flash loan attacks!\\n     *\\n     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\\n     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\\n     * constructor.\\n     * ====\\n     */\\n    function isContract(address account) internal view returns (bool) {\\n        // This method relies on extcodesize/address.code.length, which returns 0\\n        // for contracts in construction, since the code is only stored at the end\\n        // of the constructor execution.\\n\\n        return account.code.length > 0;\\n    }\\n\\n    /**\\n     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\\n     * `recipient`, forwarding all available gas and reverting on errors.\\n     *\\n     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\\n     * of certain opcodes, possibly making contracts go over the 2300 gas limit\\n     * imposed by `transfer`, making them unable to receive funds via\\n     * `transfer`. {sendValue} removes this limitation.\\n     *\\n     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\\n     *\\n     * IMPORTANT: because control is transferred to `recipient`, care must be\\n     * taken to not create reentrancy vulnerabilities. Consider using\\n     * {ReentrancyGuard} or the\\n     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\\n     */\\n    function sendValue(address payable recipient, uint256 amount) internal {\\n        require(address(this).balance >= amount, \\\"Address: insufficient balance\\\");\\n\\n        (bool success, ) = recipient.call{value: amount}(\\\"\\\");\\n        require(success, \\\"Address: unable to send value, recipient may have reverted\\\");\\n    }\\n\\n    /**\\n     * @dev Performs a Solidity function call using a low level `call`. A\\n     * plain `call` is an unsafe replacement for a function call: use this\\n     * function instead.\\n     *\\n     * If `target` reverts with a revert reason, it is bubbled up by this\\n     * function (like regular Solidity function calls).\\n     *\\n     * Returns the raw returned data. To convert to the expected return value,\\n     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\\n     *\\n     * Requirements:\\n     *\\n     * - `target` must be a contract.\\n     * - calling `target` with `data` must not revert.\\n     *\\n     * _Available since v3.1._\\n     */\\n    function functionCall(address target, bytes memory data) internal returns (bytes memory) {\\n        return functionCallWithValue(target, data, 0, \\\"Address: low-level call failed\\\");\\n    }\\n\\n    /**\\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\\n     * `errorMessage` as a fallback revert reason when `target` reverts.\\n     *\\n     * _Available since v3.1._\\n     */\\n    function functionCall(\\n        address target,\\n        bytes memory data,\\n        string memory errorMessage\\n    ) internal returns (bytes memory) {\\n        return functionCallWithValue(target, data, 0, errorMessage);\\n    }\\n\\n    /**\\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\\n     * but also transferring `value` wei to `target`.\\n     *\\n     * Requirements:\\n     *\\n     * - the calling contract must have an ETH balance of at least `value`.\\n     * - the called Solidity function must be `payable`.\\n     *\\n     * _Available since v3.1._\\n     */\\n    function functionCallWithValue(\\n        address target,\\n        bytes memory data,\\n        uint256 value\\n    ) internal returns (bytes memory) {\\n        return functionCallWithValue(target, data, value, \\\"Address: low-level call with value failed\\\");\\n    }\\n\\n    /**\\n     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\\n     * with `errorMessage` as a fallback revert reason when `target` reverts.\\n     *\\n     * _Available since v3.1._\\n     */\\n    function functionCallWithValue(\\n        address target,\\n        bytes memory data,\\n        uint256 value,\\n        string memory errorMessage\\n    ) internal returns (bytes memory) {\\n        require(address(this).balance >= value, \\\"Address: insufficient balance for call\\\");\\n        (bool success, bytes memory returndata) = target.call{value: value}(data);\\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\\n    }\\n\\n    /**\\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\\n     * but performing a static call.\\n     *\\n     * _Available since v3.3._\\n     */\\n    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\\n        return functionStaticCall(target, data, \\\"Address: low-level static call failed\\\");\\n    }\\n\\n    /**\\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\\n     * but performing a static call.\\n     *\\n     * _Available since v3.3._\\n     */\\n    function functionStaticCall(\\n        address target,\\n        bytes memory data,\\n        string memory errorMessage\\n    ) internal view returns (bytes memory) {\\n        (bool success, bytes memory returndata) = target.staticcall(data);\\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\\n    }\\n\\n    /**\\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\\n     * but performing a delegate call.\\n     *\\n     * _Available since v3.4._\\n     */\\n    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\\n        return functionDelegateCall(target, data, \\\"Address: low-level delegate call failed\\\");\\n    }\\n\\n    /**\\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\\n     * but performing a delegate call.\\n     *\\n     * _Available since v3.4._\\n     */\\n    function functionDelegateCall(\\n        address target,\\n        bytes memory data,\\n        string memory errorMessage\\n    ) internal returns (bytes memory) {\\n        (bool success, bytes memory returndata) = target.delegatecall(data);\\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\\n    }\\n\\n    /**\\n     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling\\n     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.\\n     *\\n     * _Available since v4.8._\\n     */\\n    function verifyCallResultFromTarget(\\n        address target,\\n        bool success,\\n        bytes memory returndata,\\n        string memory errorMessage\\n    ) internal view returns (bytes memory) {\\n        if (success) {\\n            if (returndata.length == 0) {\\n                // only check isContract if the call was successful and the return data is empty\\n                // otherwise we already know that it was a contract\\n                require(isContract(target), \\\"Address: call to non-contract\\\");\\n            }\\n            return returndata;\\n        } else {\\n            _revert(returndata, errorMessage);\\n        }\\n    }\\n\\n    /**\\n     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the\\n     * revert reason or using the provided one.\\n     *\\n     * _Available since v4.3._\\n     */\\n    function verifyCallResult(\\n        bool success,\\n        bytes memory returndata,\\n        string memory errorMessage\\n    ) internal pure returns (bytes memory) {\\n        if (success) {\\n            return returndata;\\n        } else {\\n            _revert(returndata, errorMessage);\\n        }\\n    }\\n\\n    function _revert(bytes memory returndata, string memory errorMessage) private pure {\\n        // Look for revert reason and bubble it up if present\\n        if (returndata.length > 0) {\\n            // The easiest way to bubble the revert reason is using memory via assembly\\n            /// @solidity memory-safe-assembly\\n            assembly {\\n                let returndata_size := mload(returndata)\\n                revert(add(32, returndata), returndata_size)\\n            }\\n        } else {\\n            revert(errorMessage);\\n        }\\n    }\\n}\\n\",\"keccak256\":\"0xf96f969e24029d43d0df89e59d365f277021dac62b48e1c1e3ebe0acdd7f1ca1\",\"license\":\"MIT\"},\"@openzeppelin/contracts/utils/Context.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)\\n\\npragma solidity ^0.8.0;\\n\\n/**\\n * @dev Provides information about the current execution context, including the\\n * sender of the transaction and its data. While these are generally available\\n * via msg.sender and msg.data, they should not be accessed in such a direct\\n * manner, since when dealing with meta-transactions the account sending and\\n * paying for execution may not be the actual sender (as far as an application\\n * is concerned).\\n *\\n * This contract is only required for intermediate, library-like contracts.\\n */\\nabstract contract Context {\\n    function _msgSender() internal view virtual returns (address) {\\n        return msg.sender;\\n    }\\n\\n    function _msgData() internal view virtual returns (bytes calldata) {\\n        return msg.data;\\n    }\\n}\\n\",\"keccak256\":\"0xe2e337e6dde9ef6b680e07338c493ebea1b5fd09b43424112868e9cc1706bca7\",\"license\":\"MIT\"},\"@openzeppelin/contracts/utils/introspection/IERC165.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)\\n\\npragma solidity ^0.8.0;\\n\\n/**\\n * @dev Interface of the ERC165 standard, as defined in the\\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\\n *\\n * Implementers can declare support of contract interfaces, which can then be\\n * queried by others ({ERC165Checker}).\\n *\\n * For an implementation, see {ERC165}.\\n */\\ninterface IERC165 {\\n    /**\\n     * @dev Returns true if this contract implements the interface defined by\\n     * `interfaceId`. See the corresponding\\n     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\\n     * to learn more about how these ids are created.\\n     *\\n     * This function call must use less than 30 000 gas.\\n     */\\n    function supportsInterface(bytes4 interfaceId) external view returns (bool);\\n}\\n\",\"keccak256\":\"0x447a5f3ddc18419d41ff92b3773fb86471b1db25773e07f877f548918a185bf1\",\"license\":\"MIT\"},\"@thesis/solidity-contracts/contracts/token/ERC20WithPermit.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity ^0.8.4;\\n\\nimport \\\"@openzeppelin/contracts/access/Ownable.sol\\\";\\n\\nimport \\\"./IERC20WithPermit.sol\\\";\\nimport \\\"./IReceiveApproval.sol\\\";\\n\\n/// @title  ERC20WithPermit\\n/// @notice Burnable ERC20 token with EIP2612 permit functionality. User can\\n///         authorize a transfer of their token with a signature conforming\\n///         EIP712 standard instead of an on-chain transaction from their\\n///         address. Anyone can submit this signature on the user's behalf by\\n///         calling the permit function, as specified in EIP2612 standard,\\n///         paying gas fees, and possibly performing other actions in the same\\n///         transaction.\\ncontract ERC20WithPermit is IERC20WithPermit, Ownable {\\n    /// @notice The amount of tokens owned by the given account.\\n    mapping(address => uint256) public override balanceOf;\\n\\n    /// @notice The remaining number of tokens that spender will be\\n    ///         allowed to spend on behalf of owner through `transferFrom` and\\n    ///         `burnFrom`. This is zero by default.\\n    mapping(address => mapping(address => uint256)) public override allowance;\\n\\n    /// @notice Returns the current nonce for EIP2612 permission for the\\n    ///         provided token owner for a replay protection. Used to construct\\n    ///         EIP2612 signature provided to `permit` function.\\n    mapping(address => uint256) public override nonce;\\n\\n    uint256 public immutable cachedChainId;\\n    bytes32 public immutable cachedDomainSeparator;\\n\\n    /// @notice Returns EIP2612 Permit message hash. Used to construct EIP2612\\n    ///         signature provided to `permit` function.\\n    bytes32 public constant override PERMIT_TYPEHASH =\\n        keccak256(\\n            \\\"Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)\\\"\\n        );\\n\\n    /// @notice The amount of tokens in existence.\\n    uint256 public override totalSupply;\\n\\n    /// @notice The name of the token.\\n    string public override name;\\n\\n    /// @notice The symbol of the token.\\n    string public override symbol;\\n\\n    /// @notice The decimals places of the token.\\n    uint8 public constant override decimals = 18;\\n\\n    constructor(string memory _name, string memory _symbol) {\\n        name = _name;\\n        symbol = _symbol;\\n\\n        cachedChainId = block.chainid;\\n        cachedDomainSeparator = buildDomainSeparator();\\n    }\\n\\n    /// @notice Moves `amount` tokens from the caller's account to `recipient`.\\n    /// @return True if the operation succeeded, reverts otherwise.\\n    /// @dev Requirements:\\n    ///       - `recipient` cannot be the zero address,\\n    ///       - the caller must have a balance of at least `amount`.\\n    function transfer(address recipient, uint256 amount)\\n        external\\n        override\\n        returns (bool)\\n    {\\n        _transfer(msg.sender, recipient, amount);\\n        return true;\\n    }\\n\\n    /// @notice Moves `amount` tokens from `spender` to `recipient` using the\\n    ///         allowance mechanism. `amount` is then deducted from the caller's\\n    ///         allowance unless the allowance was made for `type(uint256).max`.\\n    /// @return True if the operation succeeded, reverts otherwise.\\n    /// @dev Requirements:\\n    ///      - `spender` and `recipient` cannot be the zero address,\\n    ///      - `spender` must have a balance of at least `amount`,\\n    ///      - the caller must have allowance for `spender`'s tokens of at least\\n    ///        `amount`.\\n    function transferFrom(\\n        address spender,\\n        address recipient,\\n        uint256 amount\\n    ) external override returns (bool) {\\n        uint256 currentAllowance = allowance[spender][msg.sender];\\n        if (currentAllowance != type(uint256).max) {\\n            require(\\n                currentAllowance >= amount,\\n                \\\"Transfer amount exceeds allowance\\\"\\n            );\\n            _approve(spender, msg.sender, currentAllowance - amount);\\n        }\\n        _transfer(spender, recipient, amount);\\n        return true;\\n    }\\n\\n    /// @notice EIP2612 approval made with secp256k1 signature.\\n    ///         Users can authorize a transfer of their tokens with a signature\\n    ///         conforming EIP712 standard, rather than an on-chain transaction\\n    ///         from their address. Anyone can submit this signature on the\\n    ///         user's behalf by calling the permit function, paying gas fees,\\n    ///         and possibly performing other actions in the same transaction.\\n    /// @dev    The deadline argument can be set to `type(uint256).max to create\\n    ///         permits that effectively never expire.  If the `amount` is set\\n    ///         to `type(uint256).max` then `transferFrom` and `burnFrom` will\\n    ///         not reduce an allowance.\\n    function permit(\\n        address owner,\\n        address spender,\\n        uint256 amount,\\n        uint256 deadline,\\n        uint8 v,\\n        bytes32 r,\\n        bytes32 s\\n    ) external override {\\n        /* solhint-disable-next-line not-rely-on-time */\\n        require(deadline >= block.timestamp, \\\"Permission expired\\\");\\n\\n        // Validate `s` and `v` values for a malleability concern described in EIP2.\\n        // Only signatures with `s` value in the lower half of the secp256k1\\n        // curve's order and `v` value of 27 or 28 are considered valid.\\n        require(\\n            uint256(s) <=\\n                0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0,\\n            \\\"Invalid signature 's' value\\\"\\n        );\\n        require(v == 27 || v == 28, \\\"Invalid signature 'v' value\\\");\\n\\n        bytes32 digest = keccak256(\\n            abi.encodePacked(\\n                \\\"\\\\x19\\\\x01\\\",\\n                DOMAIN_SEPARATOR(),\\n                keccak256(\\n                    abi.encode(\\n                        PERMIT_TYPEHASH,\\n                        owner,\\n                        spender,\\n                        amount,\\n                        nonce[owner]++,\\n                        deadline\\n                    )\\n                )\\n            )\\n        );\\n        address recoveredAddress = ecrecover(digest, v, r, s);\\n        require(\\n            recoveredAddress != address(0) && recoveredAddress == owner,\\n            \\\"Invalid signature\\\"\\n        );\\n        _approve(owner, spender, amount);\\n    }\\n\\n    /// @notice Creates `amount` tokens and assigns them to `account`,\\n    ///         increasing the total supply.\\n    /// @dev Requirements:\\n    ///      - `recipient` cannot be the zero address.\\n    function mint(address recipient, uint256 amount) external onlyOwner {\\n        require(recipient != address(0), \\\"Mint to the zero address\\\");\\n\\n        beforeTokenTransfer(address(0), recipient, amount);\\n\\n        totalSupply += amount;\\n        balanceOf[recipient] += amount;\\n        emit Transfer(address(0), recipient, amount);\\n    }\\n\\n    /// @notice Destroys `amount` tokens from the caller.\\n    /// @dev Requirements:\\n    ///       - the caller must have a balance of at least `amount`.\\n    function burn(uint256 amount) external override {\\n        _burn(msg.sender, amount);\\n    }\\n\\n    /// @notice Destroys `amount` of tokens from `account` using the allowance\\n    ///         mechanism. `amount` is then deducted from the caller's allowance\\n    ///         unless the allowance was made for `type(uint256).max`.\\n    /// @dev Requirements:\\n    ///      - `account` must have a balance of at least `amount`,\\n    ///      - the caller must have allowance for `account`'s tokens of at least\\n    ///        `amount`.\\n    function burnFrom(address account, uint256 amount) external override {\\n        uint256 currentAllowance = allowance[account][msg.sender];\\n        if (currentAllowance != type(uint256).max) {\\n            require(\\n                currentAllowance >= amount,\\n                \\\"Burn amount exceeds allowance\\\"\\n            );\\n            _approve(account, msg.sender, currentAllowance - amount);\\n        }\\n        _burn(account, amount);\\n    }\\n\\n    /// @notice Calls `receiveApproval` function on spender previously approving\\n    ///         the spender to withdraw from the caller multiple times, up to\\n    ///         the `amount` amount. If this function is called again, it\\n    ///         overwrites the current allowance with `amount`. Reverts if the\\n    ///         approval reverted or if `receiveApproval` call on the spender\\n    ///         reverted.\\n    /// @return True if both approval and `receiveApproval` calls succeeded.\\n    /// @dev If the `amount` is set to `type(uint256).max` then\\n    ///      `transferFrom` and `burnFrom` will not reduce an allowance.\\n    function approveAndCall(\\n        address spender,\\n        uint256 amount,\\n        bytes memory extraData\\n    ) external override returns (bool) {\\n        if (approve(spender, amount)) {\\n            IReceiveApproval(spender).receiveApproval(\\n                msg.sender,\\n                amount,\\n                address(this),\\n                extraData\\n            );\\n            return true;\\n        }\\n        return false;\\n    }\\n\\n    /// @notice Sets `amount` as the allowance of `spender` over the caller's\\n    ///         tokens.\\n    /// @return True if the operation succeeded.\\n    /// @dev If the `amount` is set to `type(uint256).max` then\\n    ///      `transferFrom` and `burnFrom` will not reduce an allowance.\\n    ///      Beware that changing an allowance with this method brings the risk\\n    ///      that someone may use both the old and the new allowance by\\n    ///      unfortunate transaction ordering. One possible solution to mitigate\\n    ///      this race condition is to first reduce the spender's allowance to 0\\n    ///      and set the desired value afterwards:\\n    ///      https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\\n    function approve(address spender, uint256 amount)\\n        public\\n        override\\n        returns (bool)\\n    {\\n        _approve(msg.sender, spender, amount);\\n        return true;\\n    }\\n\\n    /// @notice Returns hash of EIP712 Domain struct with the token name as\\n    ///         a signing domain and token contract as a verifying contract.\\n    ///         Used to construct EIP2612 signature provided to `permit`\\n    ///         function.\\n    /* solhint-disable-next-line func-name-mixedcase */\\n    function DOMAIN_SEPARATOR() public view override returns (bytes32) {\\n        // As explained in EIP-2612, if the DOMAIN_SEPARATOR contains the\\n        // chainId and is defined at contract deployment instead of\\n        // reconstructed for every signature, there is a risk of possible replay\\n        // attacks between chains in the event of a future chain split.\\n        // To address this issue, we check the cached chain ID against the\\n        // current one and in case they are different, we build domain separator\\n        // from scratch.\\n        if (block.chainid == cachedChainId) {\\n            return cachedDomainSeparator;\\n        } else {\\n            return buildDomainSeparator();\\n        }\\n    }\\n\\n    /// @dev Hook that is called before any transfer of tokens. This includes\\n    ///      minting and burning.\\n    ///\\n    /// Calling conditions:\\n    /// - when `from` and `to` are both non-zero, `amount` of `from`'s tokens\\n    ///   will be to transferred to `to`.\\n    /// - when `from` is zero, `amount` tokens will be minted for `to`.\\n    /// - when `to` is zero, `amount` of ``from``'s tokens will be burned.\\n    /// - `from` and `to` are never both zero.\\n    // slither-disable-next-line dead-code\\n    function beforeTokenTransfer(\\n        address from,\\n        address to,\\n        uint256 amount\\n    ) internal virtual {}\\n\\n    function _burn(address account, uint256 amount) internal {\\n        uint256 currentBalance = balanceOf[account];\\n        require(currentBalance >= amount, \\\"Burn amount exceeds balance\\\");\\n\\n        beforeTokenTransfer(account, address(0), amount);\\n\\n        balanceOf[account] = currentBalance - amount;\\n        totalSupply -= amount;\\n        emit Transfer(account, address(0), amount);\\n    }\\n\\n    function _transfer(\\n        address spender,\\n        address recipient,\\n        uint256 amount\\n    ) private {\\n        require(spender != address(0), \\\"Transfer from the zero address\\\");\\n        require(recipient != address(0), \\\"Transfer to the zero address\\\");\\n        require(recipient != address(this), \\\"Transfer to the token address\\\");\\n\\n        beforeTokenTransfer(spender, recipient, amount);\\n\\n        uint256 spenderBalance = balanceOf[spender];\\n        require(spenderBalance >= amount, \\\"Transfer amount exceeds balance\\\");\\n        balanceOf[spender] = spenderBalance - amount;\\n        balanceOf[recipient] += amount;\\n        emit Transfer(spender, recipient, amount);\\n    }\\n\\n    function _approve(\\n        address owner,\\n        address spender,\\n        uint256 amount\\n    ) private {\\n        require(owner != address(0), \\\"Approve from the zero address\\\");\\n        require(spender != address(0), \\\"Approve to the zero address\\\");\\n        allowance[owner][spender] = amount;\\n        emit Approval(owner, spender, amount);\\n    }\\n\\n    function buildDomainSeparator() private view returns (bytes32) {\\n        return\\n            keccak256(\\n                abi.encode(\\n                    keccak256(\\n                        \\\"EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)\\\"\\n                    ),\\n                    keccak256(bytes(name)),\\n                    keccak256(bytes(\\\"1\\\")),\\n                    block.chainid,\\n                    address(this)\\n                )\\n            );\\n    }\\n}\\n\",\"keccak256\":\"0x1e1bf4ec5c9d6fe70f6f834316482aeff3f122ff4ffaa7178099e7ae71a0b16d\",\"license\":\"MIT\"},\"@thesis/solidity-contracts/contracts/token/IApproveAndCall.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity ^0.8.4;\\n\\n/// @notice An interface that should be implemented by tokens supporting\\n///         `approveAndCall`/`receiveApproval` pattern.\\ninterface IApproveAndCall {\\n    /// @notice Executes `receiveApproval` function on spender as specified in\\n    ///         `IReceiveApproval` interface. Approves spender to withdraw from\\n    ///         the caller multiple times, up to the `amount`. If this\\n    ///         function is called again, it overwrites the current allowance\\n    ///         with `amount`. Reverts if the approval reverted or if\\n    ///         `receiveApproval` call on the spender reverted.\\n    function approveAndCall(\\n        address spender,\\n        uint256 amount,\\n        bytes memory extraData\\n    ) external returns (bool);\\n}\\n\",\"keccak256\":\"0x393d18ef81a57dcc96fff4c340cc2945deaebb37b9796c322cf2bc96872c3df8\",\"license\":\"MIT\"},\"@thesis/solidity-contracts/contracts/token/IERC20WithPermit.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity ^0.8.4;\\n\\nimport \\\"@openzeppelin/contracts/token/ERC20/IERC20.sol\\\";\\nimport \\\"@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol\\\";\\n\\nimport \\\"./IApproveAndCall.sol\\\";\\n\\n/// @title  IERC20WithPermit\\n/// @notice Burnable ERC20 token with EIP2612 permit functionality. User can\\n///         authorize a transfer of their token with a signature conforming\\n///         EIP712 standard instead of an on-chain transaction from their\\n///         address. Anyone can submit this signature on the user's behalf by\\n///         calling the permit function, as specified in EIP2612 standard,\\n///         paying gas fees, and possibly performing other actions in the same\\n///         transaction.\\ninterface IERC20WithPermit is IERC20, IERC20Metadata, IApproveAndCall {\\n    /// @notice EIP2612 approval made with secp256k1 signature.\\n    ///         Users can authorize a transfer of their tokens with a signature\\n    ///         conforming EIP712 standard, rather than an on-chain transaction\\n    ///         from their address. Anyone can submit this signature on the\\n    ///         user's behalf by calling the permit function, paying gas fees,\\n    ///         and possibly performing other actions in the same transaction.\\n    /// @dev    The deadline argument can be set to `type(uint256).max to create\\n    ///         permits that effectively never expire.\\n    function permit(\\n        address owner,\\n        address spender,\\n        uint256 amount,\\n        uint256 deadline,\\n        uint8 v,\\n        bytes32 r,\\n        bytes32 s\\n    ) external;\\n\\n    /// @notice Destroys `amount` tokens from the caller.\\n    function burn(uint256 amount) external;\\n\\n    /// @notice Destroys `amount` of tokens from `account`, deducting the amount\\n    ///         from caller's allowance.\\n    function burnFrom(address account, uint256 amount) external;\\n\\n    /// @notice Returns hash of EIP712 Domain struct with the token name as\\n    ///         a signing domain and token contract as a verifying contract.\\n    ///         Used to construct EIP2612 signature provided to `permit`\\n    ///         function.\\n    /* solhint-disable-next-line func-name-mixedcase */\\n    function DOMAIN_SEPARATOR() external view returns (bytes32);\\n\\n    /// @notice Returns the current nonce for EIP2612 permission for the\\n    ///         provided token owner for a replay protection. Used to construct\\n    ///         EIP2612 signature provided to `permit` function.\\n    function nonce(address owner) external view returns (uint256);\\n\\n    /// @notice Returns EIP2612 Permit message hash. Used to construct EIP2612\\n    ///         signature provided to `permit` function.\\n    /* solhint-disable-next-line func-name-mixedcase */\\n    function PERMIT_TYPEHASH() external pure returns (bytes32);\\n}\\n\",\"keccak256\":\"0xdac9a5086c19a7128b505a7be1ab0ac1aa314f6989cb88d2417e9d7383f89fa9\",\"license\":\"MIT\"},\"@thesis/solidity-contracts/contracts/token/IReceiveApproval.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity ^0.8.4;\\n\\n/// @notice An interface that should be implemented by contracts supporting\\n///         `approveAndCall`/`receiveApproval` pattern.\\ninterface IReceiveApproval {\\n    /// @notice Receives approval to spend tokens. Called as a result of\\n    ///         `approveAndCall` call on the token.\\n    function receiveApproval(\\n        address from,\\n        uint256 amount,\\n        address token,\\n        bytes calldata extraData\\n    ) external;\\n}\\n\",\"keccak256\":\"0x6a30d83ad230548b1e7839737affc8489a035314209de14b89dbef7fb0f66395\",\"license\":\"MIT\"},\"@thesis/solidity-contracts/contracts/token/MisfundRecovery.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity ^0.8.4;\\n\\nimport \\\"@openzeppelin/contracts/access/Ownable.sol\\\";\\nimport \\\"@openzeppelin/contracts/token/ERC20/IERC20.sol\\\";\\nimport \\\"@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol\\\";\\nimport \\\"@openzeppelin/contracts/token/ERC721/IERC721.sol\\\";\\n\\n/// @title  MisfundRecovery\\n/// @notice Allows the owner of the token contract extending MisfundRecovery\\n///         to recover any ERC20 and ERC721 sent mistakenly to the token\\n///         contract address.\\ncontract MisfundRecovery is Ownable {\\n    using SafeERC20 for IERC20;\\n\\n    function recoverERC20(\\n        IERC20 token,\\n        address recipient,\\n        uint256 amount\\n    ) external onlyOwner {\\n        token.safeTransfer(recipient, amount);\\n    }\\n\\n    function recoverERC721(\\n        IERC721 token,\\n        address recipient,\\n        uint256 tokenId,\\n        bytes calldata data\\n    ) external onlyOwner {\\n        token.safeTransferFrom(address(this), recipient, tokenId, data);\\n    }\\n}\\n\",\"keccak256\":\"0xbbfea02bf20e2a6df5a497bbc05c7540a3b7c7dfb8b1feeaffef7f6b8ba65d65\",\"license\":\"MIT\"},\"contracts/token/TBTC.sol\":{\"content\":\"// SPDX-License-Identifier: GPL-3.0-only\\n\\npragma solidity 0.8.17;\\n\\nimport \\\"@thesis/solidity-contracts/contracts/token/ERC20WithPermit.sol\\\";\\nimport \\\"@thesis/solidity-contracts/contracts/token/MisfundRecovery.sol\\\";\\n\\ncontract TBTC is ERC20WithPermit, MisfundRecovery {\\n    constructor() ERC20WithPermit(\\\"tBTC v2\\\", \\\"tBTC\\\") {}\\n}\\n\",\"keccak256\":\"0x4542aaa48f7682005b815253768b6433c811daff5d2727db256d5f1879f5ccbf\",\"license\":\"GPL-3.0-only\"}},\"version\":1}",
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+  "devdoc": {
+    "kind": "dev",
+    "methods": {
+      "approve(address,uint256)": {
+        "details": "If the `amount` is set to `type(uint256).max` then      `transferFrom` and `burnFrom` will not reduce an allowance.      Beware that changing an allowance with this method brings the risk      that someone may use both the old and the new allowance by      unfortunate transaction ordering. One possible solution to mitigate      this race condition is to first reduce the spender's allowance to 0      and set the desired value afterwards:      https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729",
+        "returns": {
+          "_0": "True if the operation succeeded."
+        }
+      },
+      "approveAndCall(address,uint256,bytes)": {
+        "details": "If the `amount` is set to `type(uint256).max` then      `transferFrom` and `burnFrom` will not reduce an allowance.",
+        "returns": {
+          "_0": "True if both approval and `receiveApproval` calls succeeded."
+        }
+      },
+      "burn(uint256)": {
+        "details": "Requirements:       - the caller must have a balance of at least `amount`."
+      },
+      "burnFrom(address,uint256)": {
+        "details": "Requirements:      - `account` must have a balance of at least `amount`,      - the caller must have allowance for `account`'s tokens of at least        `amount`."
+      },
+      "mint(address,uint256)": {
+        "details": "Requirements:      - `recipient` cannot be the zero address."
+      },
+      "owner()": {
+        "details": "Returns the address of the current owner."
+      },
+      "permit(address,address,uint256,uint256,uint8,bytes32,bytes32)": {
+        "details": "The deadline argument can be set to `type(uint256).max to create         permits that effectively never expire.  If the `amount` is set         to `type(uint256).max` then `transferFrom` and `burnFrom` will         not reduce an allowance."
+      },
+      "renounceOwnership()": {
+        "details": "Leaves the contract without owner. It will not be possible to call `onlyOwner` functions anymore. Can only be called by the current owner. NOTE: Renouncing ownership will leave the contract without an owner, thereby removing any functionality that is only available to the owner."
+      },
+      "transfer(address,uint256)": {
+        "details": "Requirements:       - `recipient` cannot be the zero address,       - the caller must have a balance of at least `amount`.",
+        "returns": {
+          "_0": "True if the operation succeeded, reverts otherwise."
+        }
+      },
+      "transferFrom(address,address,uint256)": {
+        "details": "Requirements:      - `spender` and `recipient` cannot be the zero address,      - `spender` must have a balance of at least `amount`,      - the caller must have allowance for `spender`'s tokens of at least        `amount`.",
+        "returns": {
+          "_0": "True if the operation succeeded, reverts otherwise."
+        }
+      },
+      "transferOwnership(address)": {
+        "details": "Transfers ownership of the contract to a new account (`newOwner`). Can only be called by the current owner."
+      }
+    },
+    "version": 1
+  },
+  "userdoc": {
+    "kind": "user",
+    "methods": {
+      "DOMAIN_SEPARATOR()": {
+        "notice": "Returns hash of EIP712 Domain struct with the token name as         a signing domain and token contract as a verifying contract.         Used to construct EIP2612 signature provided to `permit`         function."
+      },
+      "PERMIT_TYPEHASH()": {
+        "notice": "Returns EIP2612 Permit message hash. Used to construct EIP2612         signature provided to `permit` function."
+      },
+      "allowance(address,address)": {
+        "notice": "The remaining number of tokens that spender will be         allowed to spend on behalf of owner through `transferFrom` and         `burnFrom`. This is zero by default."
+      },
+      "approve(address,uint256)": {
+        "notice": "Sets `amount` as the allowance of `spender` over the caller's         tokens."
+      },
+      "approveAndCall(address,uint256,bytes)": {
+        "notice": "Calls `receiveApproval` function on spender previously approving         the spender to withdraw from the caller multiple times, up to         the `amount` amount. If this function is called again, it         overwrites the current allowance with `amount`. Reverts if the         approval reverted or if `receiveApproval` call on the spender         reverted."
+      },
+      "balanceOf(address)": {
+        "notice": "The amount of tokens owned by the given account."
+      },
+      "burn(uint256)": {
+        "notice": "Destroys `amount` tokens from the caller."
+      },
+      "burnFrom(address,uint256)": {
+        "notice": "Destroys `amount` of tokens from `account` using the allowance         mechanism. `amount` is then deducted from the caller's allowance         unless the allowance was made for `type(uint256).max`."
+      },
+      "decimals()": {
+        "notice": "The decimals places of the token."
+      },
+      "mint(address,uint256)": {
+        "notice": "Creates `amount` tokens and assigns them to `account`,         increasing the total supply."
+      },
+      "name()": {
+        "notice": "The name of the token."
+      },
+      "nonce(address)": {
+        "notice": "Returns the current nonce for EIP2612 permission for the         provided token owner for a replay protection. Used to construct         EIP2612 signature provided to `permit` function."
+      },
+      "permit(address,address,uint256,uint256,uint8,bytes32,bytes32)": {
+        "notice": "EIP2612 approval made with secp256k1 signature.         Users can authorize a transfer of their tokens with a signature         conforming EIP712 standard, rather than an on-chain transaction         from their address. Anyone can submit this signature on the         user's behalf by calling the permit function, paying gas fees,         and possibly performing other actions in the same transaction."
+      },
+      "symbol()": {
+        "notice": "The symbol of the token."
+      },
+      "totalSupply()": {
+        "notice": "The amount of tokens in existence."
+      },
+      "transfer(address,uint256)": {
+        "notice": "Moves `amount` tokens from the caller's account to `recipient`."
+      },
+      "transferFrom(address,address,uint256)": {
+        "notice": "Moves `amount` tokens from `spender` to `recipient` using the         allowance mechanism. `amount` is then deducted from the caller's         allowance unless the allowance was made for `type(uint256).max`."
+      }
+    },
+    "version": 1
+  },
+  "storageLayout": {
+    "storage": [
+      {
+        "astId": 17269,
+        "contract": "contracts/token/TBTC.sol:TBTC",
+        "label": "_owner",
+        "offset": 0,
+        "slot": "0",
+        "type": "t_address"
+      },
+      {
+        "astId": 21530,
+        "contract": "contracts/token/TBTC.sol:TBTC",
+        "label": "balanceOf",
+        "offset": 0,
+        "slot": "1",
+        "type": "t_mapping(t_address,t_uint256)"
+      },
+      {
+        "astId": 21538,
+        "contract": "contracts/token/TBTC.sol:TBTC",
+        "label": "allowance",
+        "offset": 0,
+        "slot": "2",
+        "type": "t_mapping(t_address,t_mapping(t_address,t_uint256))"
+      },
+      {
+        "astId": 21544,
+        "contract": "contracts/token/TBTC.sol:TBTC",
+        "label": "nonce",
+        "offset": 0,
+        "slot": "3",
+        "type": "t_mapping(t_address,t_uint256)"
+      },
+      {
+        "astId": 21559,
+        "contract": "contracts/token/TBTC.sol:TBTC",
+        "label": "totalSupply",
+        "offset": 0,
+        "slot": "4",
+        "type": "t_uint256"
+      },
+      {
+        "astId": 21563,
+        "contract": "contracts/token/TBTC.sol:TBTC",
+        "label": "name",
+        "offset": 0,
+        "slot": "5",
+        "type": "t_string_storage"
+      },
+      {
+        "astId": 21567,
+        "contract": "contracts/token/TBTC.sol:TBTC",
+        "label": "symbol",
+        "offset": 0,
+        "slot": "6",
+        "type": "t_string_storage"
+      }
+    ],
+    "types": {
+      "t_address": {
+        "encoding": "inplace",
+        "label": "address",
+        "numberOfBytes": "20"
+      },
+      "t_mapping(t_address,t_mapping(t_address,t_uint256))": {
+        "encoding": "mapping",
+        "key": "t_address",
+        "label": "mapping(address => mapping(address => uint256))",
+        "numberOfBytes": "32",
+        "value": "t_mapping(t_address,t_uint256)"
+      },
+      "t_mapping(t_address,t_uint256)": {
+        "encoding": "mapping",
+        "key": "t_address",
+        "label": "mapping(address => uint256)",
+        "numberOfBytes": "32",
+        "value": "t_uint256"
+      },
+      "t_string_storage": {
+        "encoding": "bytes",
+        "label": "string",
+        "numberOfBytes": "32"
+      },
+      "t_uint256": {
+        "encoding": "inplace",
+        "label": "uint256",
+        "numberOfBytes": "32"
+      }
+    }
+  }
+}
\ No newline at end of file
diff --git a/core/hardhat.config.ts b/core/hardhat.config.ts
index 64e14bce6..9d8131afe 100644
--- a/core/hardhat.config.ts
+++ b/core/hardhat.config.ts
@@ -1,4 +1,4 @@
-import { HardhatUserConfig } from "hardhat/config"
+import type { HardhatUserConfig } from "hardhat/config"
 
 import "@nomicfoundation/hardhat-toolbox"
 import "hardhat-deploy"
@@ -23,6 +23,9 @@ const config: HardhatUserConfig = {
   },
 
   networks: {
+    hardhat: {
+      tags: ["allowStubs"],
+    },
     sepolia: {
       url: process.env.CHAIN_API_URL || "",
       chainId: 11155111,
@@ -41,6 +44,13 @@ const config: HardhatUserConfig = {
     },
   },
 
+  external: {
+    deployments: {
+      sepolia: ["./external/sepolia"],
+      mainnet: ["./external/mainnet"],
+    },
+  },
+
   etherscan: {
     apiKey: {
       sepolia: process.env.ETHERSCAN_API_KEY,
diff --git a/core/helpers/address.ts b/core/helpers/address.ts
new file mode 100644
index 000000000..5d5105819
--- /dev/null
+++ b/core/helpers/address.ts
@@ -0,0 +1,6 @@
+import { ethers } from "ethers"
+
+// eslint-disable-next-line import/prefer-default-export
+export function isNonZeroAddress(address: string): boolean {
+  return ethers.getAddress(address) !== ethers.ZeroAddress
+}
diff --git a/core/package.json b/core/package.json
index 49f094744..603cb8643 100644
--- a/core/package.json
+++ b/core/package.json
@@ -55,5 +55,8 @@
     "ts-node": "^10.9.1",
     "typechain": "^8.3.2",
     "typescript": "^5.3.2"
+  },
+  "dependencies": {
+    "@openzeppelin/contracts": "^5.0.0"
   }
 }
diff --git a/core/scripts/fetch_external_artifacts.sh b/core/scripts/fetch_external_artifacts.sh
new file mode 100755
index 000000000..5c043568e
--- /dev/null
+++ b/core/scripts/fetch_external_artifacts.sh
@@ -0,0 +1,49 @@
+#! /bin/bash
+set -eou pipefail
+
+ROOT_DIR="$(realpath "$(dirname $0)/../")"
+TMP_DIR=${ROOT_DIR}/tmp/external-artifacts
+EXTERNAL_ARTIFACTS_DIR=${ROOT_DIR}/external
+
+# Prepare temporary directory for NPM packages.
+rm -rf ${TMP_DIR}
+mkdir -p ${TMP_DIR}
+
+# fetch_external_artifact is a function that fetches a contract deployment
+# artifact from a package published to the NPM registry. It assumes a package is
+# published following the rules established by Keep Network deployments:
+# 1. Packages are tagged with network name and contain the latest version of
+#    deployment artifacts for the given network.
+# 2. Deployment artfiacts files located under `artifacts/` directory.
+# 3. Deployment artifacts are JSON files with a file name corresponding to the
+#    contract deployment name.
+fetch_external_artifact() {
+    # Tag used for the package.
+    network=$1
+    # Package name.
+    package=$2
+    # Name of the deployment artifact file.
+    contractName=$3
+    # Destination directory to save the extracted artifact.
+    destination_dir=${EXTERNAL_ARTIFACTS_DIR}/${network}
+
+    # Resolve a package ID for package and network tag.
+    package=$(npm view ${package}@${network} _id)
+
+    # Download compressed NPM package to a temporary directory.
+    npm pack --silent \
+        --pack-destination=${TMP_DIR} \
+        ${package} |
+        # Extract deployment artifact to the destination directory.
+        xargs -I{} tar -zxf ${TMP_DIR}/{} -C ${destination_dir} \
+            --strip-components 2 package/artifacts/${contractName}.json
+
+    printf "Succesfully fetched ${contractName} contract artifact from ${package} to ${destination_dir}\n"
+}
+
+# Fetch TBTC contract from @keep-network/tbtc-v2 package.
+fetch_external_artifact "mainnet" "@keep-network/tbtc-v2" "TBTC"
+fetch_external_artifact "sepolia" "@keep-network/tbtc-v2" "TBTC"
+
+# Remove downloaded NPM packages.
+rm -rf ${TMP_DIR}
diff --git a/core/test/Acre.test.ts b/core/test/Acre.test.ts
index 97775ba4b..74e764ca0 100644
--- a/core/test/Acre.test.ts
+++ b/core/test/Acre.test.ts
@@ -1,5 +1,406 @@
+import {
+  SnapshotRestorer,
+  loadFixture,
+  takeSnapshot,
+} from "@nomicfoundation/hardhat-toolbox/network-helpers"
+import { HardhatEthersSigner } from "@nomicfoundation/hardhat-ethers/signers"
+import { ethers } from "hardhat"
+import { expect } from "chai"
+import { ContractTransactionResponse, ZeroAddress } from "ethers"
+import type { TestERC20, Acre } from "../typechain"
+import { to1e18 } from "./utils"
+
+async function acreFixture() {
+  const [staker1, staker2] = await ethers.getSigners()
+
+  const TestERC20 = await ethers.getContractFactory("TestERC20")
+  const tbtc = await TestERC20.deploy()
+
+  const Acre = await ethers.getContractFactory("Acre")
+  const acre = await Acre.deploy(await tbtc.getAddress())
+
+  const amountToMint = to1e18(100000)
+  tbtc.mint(staker1, amountToMint)
+  tbtc.mint(staker2, amountToMint)
+
+  return { acre, tbtc, staker1, staker2 }
+}
+
 describe("Acre", () => {
-  describe("Add your tests", () => {
-    it("Should validate something", async () => {})
+  let acre: Acre
+  let tbtc: TestERC20
+  let staker1: HardhatEthersSigner
+  let staker2: HardhatEthersSigner
+
+  before(async () => {
+    ;({ acre, tbtc, staker1, staker2 } = await loadFixture(acreFixture))
+  })
+
+  describe("stake", () => {
+    const referral = ethers.encodeBytes32String("referral")
+    let snapshot: SnapshotRestorer
+
+    context("when staking as first staker", () => {
+      beforeEach(async () => {
+        snapshot = await takeSnapshot()
+      })
+
+      afterEach(async () => {
+        await snapshot.restore()
+      })
+
+      context("with a referral", () => {
+        const amountToStake = to1e18(1000)
+
+        // In this test case there is only one staker and
+        // the token vault has not earned anythig yet so received shares are
+        // equal to staked tokens amount.
+        const expectedReceivedShares = amountToStake
+
+        let tx: ContractTransactionResponse
+        let tbtcHolder: HardhatEthersSigner
+        let receiver: HardhatEthersSigner
+
+        beforeEach(async () => {
+          tbtcHolder = staker1
+          receiver = staker2
+
+          await tbtc
+            .connect(tbtcHolder)
+            .approve(await acre.getAddress(), amountToStake)
+
+          tx = await acre
+            .connect(tbtcHolder)
+            .stake(amountToStake, receiver.address, referral)
+        })
+
+        it("should emit Deposit event", () => {
+          expect(tx).to.emit(acre, "Deposit").withArgs(
+            // Caller.
+            tbtcHolder.address,
+            // Receiver.
+            receiver.address,
+            // Staked tokens.
+            amountToStake,
+            // Received shares.
+            expectedReceivedShares,
+          )
+        })
+
+        it("should emit StakeReferral event", () => {
+          expect(tx)
+            .to.emit(acre, "StakeReferral")
+            .withArgs(referral, amountToStake)
+        })
+
+        it("should mint stBTC tokens", async () => {
+          await expect(tx).to.changeTokenBalances(
+            acre,
+            [receiver.address],
+            [expectedReceivedShares],
+          )
+        })
+
+        it("should transfer tBTC tokens", async () => {
+          await expect(tx).to.changeTokenBalances(
+            tbtc,
+            [tbtcHolder.address, acre],
+            [-amountToStake, amountToStake],
+          )
+        })
+      })
+
+      context("without referral", () => {
+        const amountToStake = to1e18(10)
+        const emptyReferral = ethers.encodeBytes32String("")
+        let tx: ContractTransactionResponse
+
+        beforeEach(async () => {
+          await tbtc
+            .connect(staker1)
+            .approve(await acre.getAddress(), amountToStake)
+
+          tx = await acre
+            .connect(staker1)
+            .stake(amountToStake, staker1.address, emptyReferral)
+        })
+
+        it("should not emit the StakeReferral event", async () => {
+          await expect(tx).to.not.emit(acre, "StakeReferral")
+        })
+      })
+
+      context(
+        "when amount to stake is greater than the approved amount",
+        () => {
+          const approvedAmount = to1e18(10)
+          const amountToStake = approvedAmount + 1n
+
+          beforeEach(async () => {
+            await tbtc
+              .connect(staker1)
+              .approve(await acre.getAddress(), approvedAmount)
+          })
+
+          it("should revert", async () => {
+            await expect(
+              acre
+                .connect(staker1)
+                .stake(amountToStake, staker1.address, referral),
+            ).to.be.revertedWithCustomError(tbtc, "ERC20InsufficientAllowance")
+          })
+        },
+      )
+
+      context("when amount to stake is 1", () => {
+        const amountToStake = 1
+
+        beforeEach(async () => {
+          await tbtc
+            .connect(staker1)
+            .approve(await acre.getAddress(), amountToStake)
+        })
+
+        it("should not revert", async () => {
+          await expect(
+            acre
+              .connect(staker1)
+              .stake(amountToStake, staker1.address, referral),
+          ).to.not.be.reverted
+        })
+      })
+
+      context("when the receiver is zero address", () => {
+        const amountToStake = to1e18(10)
+
+        beforeEach(async () => {
+          await tbtc
+            .connect(staker1)
+            .approve(await acre.getAddress(), amountToStake)
+        })
+
+        it("should revert", async () => {
+          await expect(
+            acre.connect(staker1).stake(amountToStake, ZeroAddress, referral),
+          ).to.be.revertedWithCustomError(acre, "ERC20InvalidReceiver")
+        })
+      })
+
+      context(
+        "when a staker approved and staked tokens and wants to stake more but w/o another apporval",
+        () => {
+          const amountToStake = to1e18(10)
+
+          beforeEach(async () => {
+            await tbtc
+              .connect(staker1)
+              .approve(await acre.getAddress(), amountToStake)
+
+            await acre
+              .connect(staker1)
+              .stake(amountToStake, staker1.address, referral)
+          })
+
+          it("should revert", async () => {
+            await expect(
+              acre
+                .connect(staker1)
+                .stake(amountToStake, staker1.address, referral),
+            ).to.be.revertedWithCustomError(acre, "ERC20InsufficientAllowance")
+          })
+        },
+      )
+    })
+
+    context("when there are two stakers, A and B ", () => {
+      const staker1AmountToStake = to1e18(75)
+      const staker2AmountToStake = to1e18(25)
+      let afterStakesSnapshot: SnapshotRestorer
+      let afterSimulatingYieldSnapshot: SnapshotRestorer
+
+      before(async () => {
+        await tbtc
+          .connect(staker1)
+          .approve(await acre.getAddress(), staker1AmountToStake)
+        await tbtc
+          .connect(staker2)
+          .approve(await acre.getAddress(), staker2AmountToStake)
+
+        // Mint tokens.
+        await tbtc.connect(staker1).mint(staker1.address, staker1AmountToStake)
+        await tbtc.connect(staker2).mint(staker2.address, staker2AmountToStake)
+      })
+
+      context(
+        "when the vault is empty and has not yet earned yield from strategies",
+        () => {
+          after(async () => {
+            afterStakesSnapshot = await takeSnapshot()
+          })
+
+          context("when staker A stakes tokens", () => {
+            it("should stake tokens correctly", async () => {
+              await expect(
+                acre
+                  .connect(staker1)
+                  .stake(staker1AmountToStake, staker1.address, referral),
+              ).to.be.not.reverted
+            })
+
+            it("should receive shares equal to a staked amount", async () => {
+              const shares = await acre.balanceOf(staker1.address)
+
+              expect(shares).to.eq(staker1AmountToStake)
+            })
+          })
+
+          context("when staker B stakes tokens", () => {
+            it("should stake tokens correctly", async () => {
+              await expect(
+                acre
+                  .connect(staker2)
+                  .stake(staker2AmountToStake, staker2.address, referral),
+              ).to.be.not.reverted
+            })
+
+            it("should receive shares equal to a staked amount", async () => {
+              const shares = await acre.balanceOf(staker2.address)
+
+              expect(shares).to.eq(staker2AmountToStake)
+            })
+          })
+        },
+      )
+
+      context("when the vault has stakes", () => {
+        before(async () => {
+          await afterStakesSnapshot.restore()
+        })
+
+        it("the total assets amount should be equal to all staked tokens", async () => {
+          const totalAssets = await acre.totalAssets()
+
+          expect(totalAssets).to.eq(staker1AmountToStake + staker2AmountToStake)
+        })
+      })
+
+      context("when vault earns yield", () => {
+        let staker1SharesBefore: bigint
+        let staker2SharesBefore: bigint
+        let vaultYield: bigint
+
+        before(async () => {
+          // Current state:
+          // Staker A shares = 75
+          // Staker B shares = 25
+          // Total assets = 75(staker A) + 25(staker B) + 50(yield)
+          await afterStakesSnapshot.restore()
+
+          staker1SharesBefore = await acre.balanceOf(staker1.address)
+          staker2SharesBefore = await acre.balanceOf(staker2.address)
+          vaultYield = to1e18(50)
+
+          // Simulating yield returned from strategies. The vault now contains
+          // more tokens than deposited which causes the exchange rate to
+          // change.
+          await tbtc.mint(await acre.getAddress(), vaultYield)
+        })
+
+        after(async () => {
+          afterSimulatingYieldSnapshot = await takeSnapshot()
+        })
+
+        it("the vault should hold more assets", async () => {
+          expect(await acre.totalAssets()).to.be.eq(
+            staker1AmountToStake + staker2AmountToStake + vaultYield,
+          )
+        })
+
+        it("the staker's shares should be the same", async () => {
+          expect(await acre.balanceOf(staker1.address)).to.be.eq(
+            staker1SharesBefore,
+          )
+          expect(await acre.balanceOf(staker2.address)).to.be.eq(
+            staker2SharesBefore,
+          )
+        })
+
+        it("the staker A should be able to redeem more tokens than before", async () => {
+          const shares = await acre.balanceOf(staker1.address)
+          const availableAssetsToRedeem = await acre.previewRedeem(shares)
+
+          // Expected amount w/o rounding: 75 * 150 / 100 = 112.5
+          // Expected amount w/ support for rounding: 112499999999999999999 in
+          // tBTC token precision.
+          const expectedAssetsToRedeem = 112499999999999999999n
+
+          expect(availableAssetsToRedeem).to.be.eq(expectedAssetsToRedeem)
+        })
+
+        it("the staker B should be able to redeem more tokens than before", async () => {
+          const shares = await acre.balanceOf(staker2.address)
+          const availableAssetsToRedeem = await acre.previewRedeem(shares)
+
+          // Expected amount w/o rounding: 25 * 150 / 100 = 37.5
+          // Expected amount w/ support for rounding: 37499999999999999999 in
+          // tBTC token precision.
+          const expectedAssetsToRedeem = 37499999999999999999n
+
+          expect(availableAssetsToRedeem).to.be.eq(expectedAssetsToRedeem)
+        })
+      })
+
+      context("when staker A stakes more tokens", () => {
+        const newAmountToStake = to1e18(20)
+        // Current state:
+        // Total assets = 75(staker A) + 25(staker B) + 50(yield)
+        // Total shares = 75 + 25 = 100
+        // 20 * 100 / 150 = 13.(3) -> 13333333333333333333 in stBTC token
+        /// precision
+        const expectedSharesToMint = 13333333333333333333n
+        let sharesBefore: bigint
+        let availableToRedeemBefore: bigint
+
+        before(async () => {
+          await afterSimulatingYieldSnapshot.restore()
+
+          sharesBefore = await acre.balanceOf(staker1.address)
+          availableToRedeemBefore = await acre.previewRedeem(sharesBefore)
+
+          tbtc.mint(staker1.address, newAmountToStake)
+
+          await tbtc
+            .connect(staker1)
+            .approve(await acre.getAddress(), newAmountToStake)
+
+          // State after stake:
+          // Total assets = 75(staker A) + 25(staker B) + 50(yield) + 20(staker
+          // A) = 170
+          // Total shares = 75 + 25 + 13.(3) = 113.(3)
+          await acre.stake(newAmountToStake, staker1.address, referral)
+        })
+
+        it("should receive more shares", async () => {
+          const shares = await acre.balanceOf(staker1.address)
+
+          expect(shares).to.be.eq(sharesBefore + expectedSharesToMint)
+        })
+
+        it("should be able to redeem more tokens than before", async () => {
+          const shares = await acre.balanceOf(staker1.address)
+          const availableToRedeem = await acre.previewRedeem(shares)
+
+          // Expected amount w/o rounding: 88.(3) * 170 / 113.(3) = 132.5
+          // Expected amount w/ support for rounding: 132499999999999999999 in
+          // tBTC token precision.
+          const expectedTotalAssetsAvailableToRedeem = 132499999999999999999n
+
+          expect(availableToRedeem).to.be.greaterThan(availableToRedeemBefore)
+          expect(availableToRedeem).to.be.eq(
+            expectedTotalAssetsAvailableToRedeem,
+          )
+        })
+      })
+    })
   })
 })
diff --git a/core/test/helpers.test.ts b/core/test/helpers.test.ts
new file mode 100644
index 000000000..c5a507eb8
--- /dev/null
+++ b/core/test/helpers.test.ts
@@ -0,0 +1,45 @@
+/* eslint-disable @typescript-eslint/no-unused-expressions */
+import { expect } from "chai"
+import { ZeroAddress } from "ethers"
+
+import { isNonZeroAddress } from "../helpers/address"
+
+const ADDRESS_1: string = "0xb894c3967CFb58A5c55f1de4131d126B1eFA1EE0"
+const ADDRESS_1_LOWERCASE: string = ADDRESS_1.toLowerCase()
+const ADDRESS_1_NO_PREFIX: string = ADDRESS_1.substring(2)
+const ADDRESS_INVALID: string = "0xXYZ4c3967CFb58A5c55f1de4131d126B1eFA1EE0"
+const ADDRESS_ZERO: string = ZeroAddress
+
+describe("Helpers", () => {
+  describe("address", () => {
+    describe("isNonZeroAddress", () => {
+      it("should return true for valid checksumed address", () => {
+        expect(isNonZeroAddress(ADDRESS_1)).to.be.true
+      })
+
+      it("should return true for lowercase address", () => {
+        expect(isNonZeroAddress(ADDRESS_1_LOWERCASE)).to.be.true
+      })
+
+      it("should return true for address without 0x prefix", () => {
+        expect(isNonZeroAddress(ADDRESS_1_NO_PREFIX)).to.be.true
+      })
+
+      it("should return false for zero address", () => {
+        expect(isNonZeroAddress(ADDRESS_ZERO)).to.be.false
+      })
+
+      it("should throw an error for empty string", () => {
+        expect(() => {
+          isNonZeroAddress("")
+        }).to.throw("invalid address")
+      })
+
+      it("should throw an error for address containing invalid character", () => {
+        expect(() => {
+          isNonZeroAddress(ADDRESS_INVALID)
+        }).to.throw("invalid address")
+      })
+    })
+  })
+})
diff --git a/core/test/utils/index.ts b/core/test/utils/index.ts
new file mode 100644
index 000000000..6654cca0e
--- /dev/null
+++ b/core/test/utils/index.ts
@@ -0,0 +1 @@
+export * from "./number"
diff --git a/core/test/utils/number.ts b/core/test/utils/number.ts
new file mode 100644
index 000000000..9784b499c
--- /dev/null
+++ b/core/test/utils/number.ts
@@ -0,0 +1,10 @@
+export function to1ePrecision(
+  n: string | number | bigint,
+  precision: number,
+): bigint {
+  return BigInt(n) * 10n ** BigInt(precision)
+}
+
+export function to1e18(n: string | number | bigint): bigint {
+  return to1ePrecision(n, 18)
+}
diff --git a/core/tsconfig.json b/core/tsconfig.json
index 81b5d7d52..f9167f325 100644
--- a/core/tsconfig.json
+++ b/core/tsconfig.json
@@ -9,5 +9,5 @@
     "resolveJsonModule": true
   },
   "files": ["./hardhat.config.ts"],
-  "include": ["./deploy", "./test", "./typechain"]
+  "include": ["./deploy", "./test", "./typechain", "./helpers"]
 }
diff --git a/dapp/.eslintrc b/dapp/.eslintrc
index 441891d36..b654e6b24 100644
--- a/dapp/.eslintrc
+++ b/dapp/.eslintrc
@@ -3,6 +3,9 @@
   "extends": ["@thesis-co"],
   "rules": {
     "import/no-extraneous-dependencies": "off",
-    "import/prefer-default-export": "off"
+    "import/prefer-default-export": "off",
+    // Regarding the fact that we are using Chakra UI lib let's disable this rule.
+    // This will allow us to easily pass props from the parent component.
+    "react/jsx-props-no-spreading": "off"
   }
 }
diff --git a/dapp/src/DApp.tsx b/dapp/src/DApp.tsx
index 6f5e4a9bc..f38c6379e 100644
--- a/dapp/src/DApp.tsx
+++ b/dapp/src/DApp.tsx
@@ -1,22 +1,21 @@
 import React from "react"
-import { ChakraProvider, Box, Text } from "@chakra-ui/react"
-import { useDetectThemeMode, useWalletContext } from "./hooks"
+import { Box, ChakraProvider } from "@chakra-ui/react"
+import { useDetectThemeMode } from "./hooks"
 import theme from "./theme"
 import { LedgerWalletAPIProvider, WalletContextProvider } from "./contexts"
-import Navbar from "./components/Navbar"
+import Header from "./components/Header"
+import Overview from "./components/Overview"
 
 function DApp() {
   useDetectThemeMode()
 
-  const { btcAccount, ethAccount } = useWalletContext()
-
   return (
-    <Box>
-      <Navbar />
-      <h1>Ledger live - Acre dApp</h1>
-      {btcAccount && <Text>Account: {btcAccount.address}</Text>}
-      {ethAccount && <Text>Account: {ethAccount.address}</Text>}
-    </Box>
+    <>
+      <Header />
+      <Box as="main">
+        <Overview />
+      </Box>
+    </>
   )
 }
 
diff --git a/dapp/src/assets/bitcoin.svg b/dapp/src/assets/bitcoin.svg
deleted file mode 100644
index 8b99c75c1..000000000
--- a/dapp/src/assets/bitcoin.svg
+++ /dev/null
@@ -1,16 +0,0 @@
-<svg width="28" height="28" viewBox="0 0 28 28" fill="none" xmlns="http://www.w3.org/2000/svg">
-<g clip-path="url(#clip0_1935_2913)">
-<rect width="28" height="28" rx="14" fill="black"/>
-<g clip-path="url(#clip1_1935_2913)">
-<path d="M17.9643 13.4608C18.7339 13.0656 19.2154 12.3698 19.1029 11.2105C18.9515 9.62618 17.5942 9.09493 15.8808 8.94364L15.8805 6.74609H14.5529L14.5526 8.88584C14.2033 8.88584 13.8472 8.89276 13.4928 8.89993L13.4925 6.74639L12.1661 6.74626L12.1659 8.94326C11.8784 8.94918 11.5961 8.9548 11.3205 8.9548V8.9483L9.48941 8.94755L9.48966 10.376C9.48966 10.376 10.47 10.3574 10.4539 10.3754C10.9914 10.3758 11.1669 10.6904 11.2174 10.9619L11.2178 13.4654V16.9819C11.1941 17.1523 11.0945 17.4246 10.7187 17.4251C10.7358 17.4403 9.75299 17.425 9.75299 17.425L9.48966 19.0223H11.217C11.5388 19.0226 11.8551 19.0277 12.1653 19.0302L12.1665 21.2526L13.4925 21.253L13.4921 19.0538C13.8569 19.0613 14.2091 19.0646 14.553 19.0641L14.5526 21.253H15.8801L15.8809 19.0343C18.1123 18.9051 19.6745 18.3386 19.8687 16.2266C20.0253 14.5262 19.2312 13.7672 17.9643 13.4608ZM13.5245 10.4724C14.2732 10.4724 16.6279 10.2321 16.6282 11.8084C16.6279 13.3196 14.2739 13.1431 13.5245 13.1431V10.4724ZM13.5239 17.436L13.5245 14.4913C14.4241 14.4911 17.2456 14.2304 17.2459 15.963C17.2463 17.6245 14.4241 17.4353 13.5239 17.436Z" fill="white"/>
-</g>
-</g>
-<defs>
-<clipPath id="clip0_1935_2913">
-<rect width="28" height="28" rx="14" fill="white"/>
-</clipPath>
-<clipPath id="clip1_1935_2913">
-<rect width="11.3014" height="15" fill="white" transform="translate(9 6.5)"/>
-</clipPath>
-</defs>
-</svg>
\ No newline at end of file
diff --git a/dapp/src/assets/ethereum.svg b/dapp/src/assets/ethereum.svg
deleted file mode 100644
index 0a528dc23..000000000
--- a/dapp/src/assets/ethereum.svg
+++ /dev/null
@@ -1,16 +0,0 @@
-<svg width="28" height="28" viewBox="0 0 28 28" fill="none" xmlns="http://www.w3.org/2000/svg">
-<g clip-path="url(#clip0_2093_38934)">
-<rect width="28" height="28" rx="14" fill="#232323"/>
-<path d="M13.9984 3.6004L13.8564 4.07437V17.8278L13.9984 17.967L20.4964 14.1933L13.9984 3.6004Z" fill="#4E4E4E"/>
-<path d="M13.9981 3.6004L7.5 14.1933L13.9981 17.967V11.2915V3.6004Z" fill="#C5C5C5"/>
-<path d="M13.9979 19.1767L13.918 19.2725V24.1717L13.9979 24.4013L20.4999 15.4049L13.9979 19.1767Z" fill="#3C3C3B"/>
-<path d="M13.9981 24.4013V19.1767L7.5 15.4049L13.9981 24.4013Z" fill="#C5C5C5"/>
-<path d="M13.998 17.9672L20.496 14.1936L13.998 11.2918V17.9672Z" fill="#141414"/>
-<path d="M7.5 14.1936L13.998 17.9672V11.2918L7.5 14.1936Z" fill="#393939"/>
-</g>
-<defs>
-<clipPath id="clip0_2093_38934">
-<rect width="28" height="28" rx="14" fill="white"/>
-</clipPath>
-</defs>
-</svg>
\ No newline at end of file
diff --git a/dapp/src/assets/info.svg b/dapp/src/assets/info.svg
deleted file mode 100644
index 5842e381c..000000000
--- a/dapp/src/assets/info.svg
+++ /dev/null
@@ -1,11 +0,0 @@
-<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
-<g clip-path="url(#clip0_1935_3507)">
-<path d="M2.6967 2.6967C4.10322 1.29018 6.01087 0.5 8 0.5C9.48336 0.5 10.9334 0.939867 12.1668 1.76398C13.4001 2.58809 14.3614 3.75943 14.9291 5.12987C15.4967 6.50032 15.6453 8.00832 15.3559 9.46317C15.0665 10.918 14.3522 12.2544 13.3033 13.3033C12.2544 14.3522 10.918 15.0665 9.46317 15.3559C8.00832 15.6453 6.50032 15.4967 5.12987 14.9291C3.75943 14.3614 2.58809 13.4001 1.76398 12.1668C0.939867 10.9334 0.5 9.48336 0.5 8C0.5 6.01087 1.29018 4.10322 2.6967 2.6967Z" stroke="black"/>
-<path d="M8.80875 5.61622C8.89099 5.62381 8.97401 5.61566 9.05283 5.59223C9.13165 5.56881 9.20466 5.53059 9.26748 5.47988C9.3303 5.42918 9.38164 5.36701 9.41843 5.29712C9.45521 5.22722 9.47668 5.15104 9.48156 5.07312L9.57782 4.57349C9.60208 4.50175 9.60644 4.42533 9.59046 4.35156C9.57448 4.27778 9.53871 4.20911 9.48657 4.15214C9.43444 4.09517 9.36768 4.0518 9.29271 4.0262C9.21774 4.00059 9.13706 3.9936 9.05841 4.00591H8.19624C8.114 3.99845 8.03101 4.00675 7.95225 4.0303C7.87348 4.05385 7.80055 4.09217 7.73784 4.14297C7.67512 4.19377 7.6239 4.25601 7.58724 4.32595C7.55058 4.39588 7.52924 4.47209 7.52449 4.55L7.42823 5.06013C7.35629 5.40987 7.56046 5.61572 7.94447 5.61572L8.80875 5.61622ZM8.68815 12C9.10813 12 9.25253 11.8641 9.30013 11.6258L9.4202 11.0022C9.43117 10.9672 9.43278 10.93 9.42489 10.8942C9.417 10.8584 9.39986 10.825 9.37499 10.797C9.35012 10.7689 9.31829 10.7471 9.28234 10.7335C9.2464 10.7199 9.20744 10.7149 9.16895 10.7189H8.73681C8.49668 10.7189 8.42474 10.651 8.47235 10.4466L9.24089 6.73889C9.32499 6.35317 9.14462 6.19479 8.77278 6.19479H6.90035C6.81443 6.19375 6.73094 6.22171 6.6649 6.27364C6.59887 6.32558 6.55463 6.39807 6.54014 6.47808L6.40791 7.15858C6.398 7.19314 6.39728 7.22948 6.40581 7.26437C6.41435 7.29926 6.43188 7.33161 6.45685 7.35856C6.48182 7.3855 6.51345 7.40621 6.54893 7.41882C6.5844 7.43144 6.62263 7.43558 6.66021 7.43087H7.17645L6.58775 10.2993C6.35978 11.4104 6.82789 11.998 8.11214 11.998L8.68815 12Z" fill="black"/>
-</g>
-<defs>
-<clipPath id="clip0_1935_3507">
-<rect width="16" height="16" fill="white"/>
-</clipPath>
-</defs>
-</svg>
\ No newline at end of file
diff --git a/dapp/src/components/Navbar/ConnectWallet.tsx b/dapp/src/components/Header/ConnectWallet.tsx
similarity index 71%
rename from dapp/src/components/Navbar/ConnectWallet.tsx
rename to dapp/src/components/Header/ConnectWallet.tsx
index 701f1f9d4..41f6bd52d 100644
--- a/dapp/src/components/Navbar/ConnectWallet.tsx
+++ b/dapp/src/components/Header/ConnectWallet.tsx
@@ -1,9 +1,7 @@
 import React from "react"
-import { Box, Button, Image, Text } from "@chakra-ui/react"
+import { Button, HStack, Icon, Text, Tooltip } from "@chakra-ui/react"
 import { Account } from "@ledgerhq/wallet-api-client"
-import BitcoinIcon from "../../assets/bitcoin.svg"
-import EthereumIcon from "../../assets/ethereum.svg"
-import InfoIcon from "../../assets/info.svg"
+import { Bitcoin, Ethereum, Info } from "../../static/icons"
 import { BITCOIN } from "../../constants"
 import {
   useRequestBitcoinAccount,
@@ -13,8 +11,8 @@ import {
 import { formatSatoshiAmount, truncateAddress } from "../../utils"
 
 export type ConnectButtonsProps = {
-  leftIcon: string
-  rightIcon: string
+  leftIcon: typeof Icon
+  rightIcon: typeof Icon
   account: Account | undefined
   requestAccount: () => Promise<void>
 }
@@ -28,13 +26,20 @@ function ConnectButton({
   const styles = !account
     ? { color: "red.400", borderColor: "red.400" }
     : undefined
+
   return (
     <Button
       variant="outline"
       sx={styles}
-      leftIcon={<Image src={leftIcon} />}
-      // TODO: Add a tooltip here
-      rightIcon={!account ? <Image src={rightIcon} /> : undefined}
+      leftIcon={<Icon as={leftIcon} h={7} w={7} />}
+      rightIcon={
+        !account ? (
+          // TODO: Add correct text for tooltip
+          <Tooltip label="Template">
+            <Icon as={rightIcon} color="grey.700" />
+          </Tooltip>
+        ) : undefined
+      }
       onClick={requestAccount}
     >
       {account ? truncateAddress(account.address) : "Not connected"}
@@ -48,8 +53,8 @@ export default function ConnectWallet() {
   const { btcAccount, ethAccount } = useWalletContext()
 
   return (
-    <Box display="flex" alignItems="center" gap="4">
-      <Box display="flex" gap="2">
+    <HStack spacing={4}>
+      <HStack>
         <Text>Balance</Text>
         <Text as="b">
           {!btcAccount || btcAccount?.balance.isZero()
@@ -57,23 +62,23 @@ export default function ConnectWallet() {
             : formatSatoshiAmount(btcAccount.balance.toString())}
         </Text>
         <Text>{BITCOIN.symbol}</Text>
-      </Box>
+      </HStack>
       <ConnectButton
-        leftIcon={BitcoinIcon}
-        rightIcon={InfoIcon}
+        leftIcon={Bitcoin}
+        rightIcon={Info}
         account={btcAccount}
         requestAccount={async () => {
           await requestBitcoinAccount()
         }}
       />
       <ConnectButton
-        leftIcon={EthereumIcon}
-        rightIcon={InfoIcon}
+        leftIcon={Ethereum}
+        rightIcon={Info}
         account={ethAccount}
         requestAccount={async () => {
           await requestEthereumAccount()
         }}
       />
-    </Box>
+    </HStack>
   )
 }
diff --git a/dapp/src/components/Header/index.tsx b/dapp/src/components/Header/index.tsx
new file mode 100644
index 000000000..838ed37b2
--- /dev/null
+++ b/dapp/src/components/Header/index.tsx
@@ -0,0 +1,11 @@
+import React from "react"
+import { Flex } from "@chakra-ui/react"
+import ConnectWallet from "./ConnectWallet"
+
+export default function Header() {
+  return (
+    <Flex justifyContent="end" p={6}>
+      <ConnectWallet />
+    </Flex>
+  )
+}
diff --git a/dapp/src/components/Navbar/index.tsx b/dapp/src/components/Navbar/index.tsx
deleted file mode 100644
index ef0221cc7..000000000
--- a/dapp/src/components/Navbar/index.tsx
+++ /dev/null
@@ -1,11 +0,0 @@
-import React from "react"
-import { Box } from "@chakra-ui/react"
-import ConnectWallet from "./ConnectWallet"
-
-export default function Navbar() {
-  return (
-    <Box p={4} display="flex" justifyContent="end">
-      <ConnectWallet />
-    </Box>
-  )
-}
diff --git a/dapp/src/components/Overview/PositionDetails.tsx b/dapp/src/components/Overview/PositionDetails.tsx
new file mode 100644
index 000000000..e07b4a1c1
--- /dev/null
+++ b/dapp/src/components/Overview/PositionDetails.tsx
@@ -0,0 +1,42 @@
+import React from "react"
+import {
+  Text,
+  Button,
+  Tooltip,
+  Icon,
+  useColorModeValue,
+  CardBody,
+  Card,
+  CardFooter,
+  HStack,
+  CardProps,
+} from "@chakra-ui/react"
+import { BITCOIN, USD } from "../../constants"
+import { Info } from "../../static/icons"
+
+export default function PositionDetails(props: CardProps) {
+  return (
+    <Card {...props}>
+      <CardBody>
+        <HStack justifyContent="space-between">
+          <Text>Your positions</Text>
+          {/* TODO: Add correct text for tooltip */}
+          <Tooltip label="Template">
+            <Icon as={Info} color={useColorModeValue("black", "grey.80")} />
+          </Tooltip>
+        </HStack>
+        <Text>
+          34.75 <Text as="span">{BITCOIN.symbol}</Text>
+        </Text>
+        <Text>
+          1.245.148,1 <Text as="span">{USD.symbol}</Text>
+        </Text>
+      </CardBody>
+      <CardFooter flexDirection="column" gap={2}>
+        {/* TODO: Handle click actions */}
+        <Button>Stake</Button>
+        <Button variant="outline">Withdraw</Button>
+      </CardFooter>
+    </Card>
+  )
+}
diff --git a/dapp/src/components/Overview/Statistics.tsx b/dapp/src/components/Overview/Statistics.tsx
new file mode 100644
index 000000000..221f22f60
--- /dev/null
+++ b/dapp/src/components/Overview/Statistics.tsx
@@ -0,0 +1,13 @@
+import React from "react"
+import { CardBody, Card, CardProps } from "@chakra-ui/react"
+import { TextMd } from "../Typography"
+
+export default function Statistics(props: CardProps) {
+  return (
+    <Card {...props}>
+      <CardBody>
+        <TextMd>Pool stats</TextMd>
+      </CardBody>
+    </Card>
+  )
+}
diff --git a/dapp/src/components/Overview/TransactionHistory.tsx b/dapp/src/components/Overview/TransactionHistory.tsx
new file mode 100644
index 000000000..7b03b3b9f
--- /dev/null
+++ b/dapp/src/components/Overview/TransactionHistory.tsx
@@ -0,0 +1,13 @@
+import React from "react"
+import { CardBody, Card, CardProps } from "@chakra-ui/react"
+import { TextMd } from "../Typography"
+
+export default function TransactionHistory(props: CardProps) {
+  return (
+    <Card {...props}>
+      <CardBody>
+        <TextMd>Transaction history</TextMd>
+      </CardBody>
+    </Card>
+  )
+}
diff --git a/dapp/src/components/Overview/index.tsx b/dapp/src/components/Overview/index.tsx
new file mode 100644
index 000000000..d5fde912e
--- /dev/null
+++ b/dapp/src/components/Overview/index.tsx
@@ -0,0 +1,41 @@
+import React from "react"
+import {
+  Button,
+  Flex,
+  Grid,
+  Icon,
+  Switch,
+  useColorModeValue,
+} from "@chakra-ui/react"
+import PositionDetails from "./PositionDetails"
+import Statistics from "./Statistics"
+import TransactionHistory from "./TransactionHistory"
+import { USD } from "../../constants"
+import { ChevronRight } from "../../static/icons"
+
+export default function Overview() {
+  const bg = useColorModeValue("white", "grey.400")
+  return (
+    <Flex direction="column" gap={2} p={6}>
+      <Flex justifyContent="space-between">
+        {/* TODO: Handle click actions */}
+        <Switch size="sm">Show values in {USD.symbol}</Switch>
+        <Button variant="link" rightIcon={<Icon as={ChevronRight} />}>
+          Read documentation
+        </Button>
+      </Flex>
+      <Grid
+        templateAreas={`"position-details statistics"
+                        "transaction-history transaction-history"`}
+        gridTemplateColumns={{ base: "30% 1fr", xl: "20% 1fr" }}
+        gridTemplateRows={{ base: "55% 1fr", xl: "40% 1fr" }}
+        h="80vh"
+        gap={4}
+      >
+        <PositionDetails bg={bg} gridArea="position-details" />
+        <Statistics bg={bg} gridArea="statistics" />
+        <TransactionHistory bg={bg} gridArea="transaction-history" />
+      </Grid>
+    </Flex>
+  )
+}
diff --git a/dapp/src/components/Typography/index.tsx b/dapp/src/components/Typography/index.tsx
new file mode 100644
index 000000000..1ffbd9ff1
--- /dev/null
+++ b/dapp/src/components/Typography/index.tsx
@@ -0,0 +1,32 @@
+import React from "react"
+import { Text, TextProps } from "@chakra-ui/react"
+
+export function TextXl(props: TextProps) {
+  return (
+    <Text as="p" fontWeight="medium" fontSize="xl" lineHeight="xl" {...props} />
+  )
+}
+
+export function TextLg(props: TextProps) {
+  return (
+    <Text as="p" fontWeight="medium" fontSize="lg" lineHeight="lg" {...props} />
+  )
+}
+
+export function TextMd(props: TextProps) {
+  return (
+    <Text as="p" fontWeight="medium" fontSize="md" lineHeight="md" {...props} />
+  )
+}
+
+export function TextSm(props: TextProps) {
+  return (
+    <Text as="p" fontWeight="medium" fontSize="sm" lineHeight="sm" {...props} />
+  )
+}
+
+export function TextXs(props: TextProps) {
+  return (
+    <Text as="p" fontWeight="medium" fontSize="xs" lineHeight="xs" {...props} />
+  )
+}
diff --git a/dapp/src/constants/currency.ts b/dapp/src/constants/currency.ts
index f45406c7f..feecf3127 100644
--- a/dapp/src/constants/currency.ts
+++ b/dapp/src/constants/currency.ts
@@ -12,6 +12,12 @@ export const ETHEREUM: Currency = {
   decimals: 18,
 }
 
+export const USD: Currency = {
+  name: "United States Dollar",
+  symbol: "USD",
+  decimals: 10,
+}
+
 export const CURRENCY_ID_BITCOIN =
   import.meta.env.VITE_USE_TESTNET === "true" ? "bitcoin_testnet" : "bitcoin"
 
diff --git a/dapp/src/static/icons/Bitcoin.tsx b/dapp/src/static/icons/Bitcoin.tsx
new file mode 100644
index 000000000..c25918520
--- /dev/null
+++ b/dapp/src/static/icons/Bitcoin.tsx
@@ -0,0 +1,31 @@
+import React from "react"
+import { createIcon } from "@chakra-ui/react"
+
+export const Bitcoin = createIcon({
+  displayName: "Bitcoin",
+  viewBox: "0 0 28 28",
+  path: [
+    <g clipPath="url(#clip0_1935_2913)">
+      <rect width="28" height="28" rx="14" fill="black" />
+      <g clipPath="url(#clip1_1935_2913)">
+        <path
+          d="M17.9643 13.4608C18.7339 13.0656 19.2154 12.3698 19.1029 11.2105C18.9515 9.62618 17.5942 9.09493 15.8808 8.94364L15.8805 6.74609H14.5529L14.5526 8.88584C14.2033 8.88584 13.8472 8.89276 13.4928 8.89993L13.4925 6.74639L12.1661 6.74626L12.1659 8.94326C11.8784 8.94918 11.5961 8.9548 11.3205 8.9548V8.9483L9.48941 8.94755L9.48966 10.376C9.48966 10.376 10.47 10.3574 10.4539 10.3754C10.9914 10.3758 11.1669 10.6904 11.2174 10.9619L11.2178 13.4654V16.9819C11.1941 17.1523 11.0945 17.4246 10.7187 17.4251C10.7358 17.4403 9.75299 17.425 9.75299 17.425L9.48966 19.0223H11.217C11.5388 19.0226 11.8551 19.0277 12.1653 19.0302L12.1665 21.2526L13.4925 21.253L13.4921 19.0538C13.8569 19.0613 14.2091 19.0646 14.553 19.0641L14.5526 21.253H15.8801L15.8809 19.0343C18.1123 18.9051 19.6745 18.3386 19.8687 16.2266C20.0253 14.5262 19.2312 13.7672 17.9643 13.4608ZM13.5245 10.4724C14.2732 10.4724 16.6279 10.2321 16.6282 11.8084C16.6279 13.3196 14.2739 13.1431 13.5245 13.1431V10.4724ZM13.5239 17.436L13.5245 14.4913C14.4241 14.4911 17.2456 14.2304 17.2459 15.963C17.2463 17.6245 14.4241 17.4353 13.5239 17.436Z"
+          fill="white"
+        />
+      </g>
+    </g>,
+    <defs>
+      <clipPath id="clip0_1935_2913">
+        <rect width="28" height="28" rx="14" fill="white" />
+      </clipPath>
+      <clipPath id="clip1_1935_2913">
+        <rect
+          width="11.3014"
+          height="15"
+          fill="white"
+          transform="translate(9 6.5)"
+        />
+      </clipPath>
+    </defs>,
+  ],
+})
diff --git a/dapp/src/static/icons/ChevronRight.tsx b/dapp/src/static/icons/ChevronRight.tsx
new file mode 100644
index 000000000..8a11116cb
--- /dev/null
+++ b/dapp/src/static/icons/ChevronRight.tsx
@@ -0,0 +1,13 @@
+import React from "react"
+import { createIcon } from "@chakra-ui/react"
+
+export const ChevronRight = createIcon({
+  displayName: "ChevronRight",
+  viewBox: "0 0 20 20",
+  path: (
+    <path
+      fill="currentColor"
+      d="M10 6L8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"
+    />
+  ),
+})
diff --git a/dapp/src/static/icons/Ethereum.tsx b/dapp/src/static/icons/Ethereum.tsx
new file mode 100644
index 000000000..b3c5c5633
--- /dev/null
+++ b/dapp/src/static/icons/Ethereum.tsx
@@ -0,0 +1,41 @@
+import React from "react"
+import { createIcon } from "@chakra-ui/react"
+
+export const Ethereum = createIcon({
+  displayName: "Ethereum",
+  viewBox: "0 0 28 28",
+  path: [
+    <g clipPath="url(#clip0_2093_38934)">
+      <rect width="28" height="28" rx="14" fill="#232323" />
+      <path
+        d="M13.9984 3.6004L13.8564 4.07437V17.8278L13.9984 17.967L20.4964 14.1933L13.9984 3.6004Z"
+        fill="#4E4E4E"
+      />
+      <path
+        d="M13.9981 3.6004L7.5 14.1933L13.9981 17.967V11.2915V3.6004Z"
+        fill="#C5C5C5"
+      />
+      <path
+        d="M13.9979 19.1767L13.918 19.2725V24.1717L13.9979 24.4013L20.4999 15.4049L13.9979 19.1767Z"
+        fill="#3C3C3B"
+      />
+      <path
+        d="M13.9981 24.4013V19.1767L7.5 15.4049L13.9981 24.4013Z"
+        fill="#C5C5C5"
+      />
+      <path
+        d="M13.998 17.9672L20.496 14.1936L13.998 11.2918V17.9672Z"
+        fill="#141414"
+      />
+      <path
+        d="M7.5 14.1936L13.998 17.9672V11.2918L7.5 14.1936Z"
+        fill="#393939"
+      />
+    </g>,
+    <defs>
+      <clipPath id="clip0_2093_38934">
+        <rect width="28" height="28" rx="14" fill="white" />
+      </clipPath>
+    </defs>,
+  ],
+})
diff --git a/dapp/src/static/icons/Info.tsx b/dapp/src/static/icons/Info.tsx
new file mode 100644
index 000000000..364e278d7
--- /dev/null
+++ b/dapp/src/static/icons/Info.tsx
@@ -0,0 +1,14 @@
+import React from "react"
+import { createIcon } from "@chakra-ui/react"
+
+export const Info = createIcon({
+  displayName: "Info",
+  viewBox: "0 0 20 20",
+  path: [
+    <rect width="20" height="20" rx="10" fill="currentColor" />,
+    <path
+      d="M11.1619 6.92432C11.2802 6.93572 11.3995 6.92348 11.5128 6.88835C11.6261 6.85321 11.7311 6.79589 11.8214 6.71983C11.9117 6.64376 11.9855 6.55052 12.0383 6.44568C12.0912 6.34084 12.1221 6.22655 12.1291 6.10968L12.2675 5.36023C12.3024 5.25263 12.3086 5.138 12.2856 5.02733C12.2627 4.91667 12.2113 4.81367 12.1363 4.72821C12.0614 4.64276 11.9654 4.57771 11.8576 4.5393C11.7499 4.50089 11.6339 4.49041 11.5208 4.50886H10.2815C10.1632 4.49767 10.0439 4.51012 9.93071 4.54545C9.81749 4.58078 9.71266 4.63826 9.6225 4.71446C9.53234 4.79066 9.45871 4.88401 9.40601 4.98892C9.35332 5.09383 9.32264 5.20814 9.31582 5.325L9.17744 6.09019C9.07403 6.6148 9.36752 6.92357 9.91953 6.92357L11.1619 6.92432ZM10.9886 15.5C11.5923 15.5 11.7999 15.2961 11.8683 14.9387L12.0409 14.0034C12.0567 13.9507 12.059 13.8951 12.0476 13.8414C12.0363 13.7876 12.0117 13.7375 11.9759 13.6954C11.9402 13.6534 11.8944 13.6207 11.8427 13.6003C11.7911 13.5798 11.7351 13.5723 11.6797 13.5784H11.0585C10.7133 13.5784 10.6099 13.4765 10.6784 13.17L11.7831 8.60833C11.904 8.02976 11.6448 7.79218 11.1102 7.79218H8.41861C8.2951 7.79062 8.17508 7.83256 8.08016 7.91047C7.98523 7.98837 7.92164 8.09711 7.90082 8.21712L7.71073 9.23786C7.69648 9.28971 7.69544 9.34422 7.70772 9.39655C7.71999 9.44889 7.74519 9.49742 7.78108 9.53784C7.81697 9.57826 7.86244 9.60931 7.91344 9.62823C7.96444 9.64716 8.01939 9.65337 8.07342 9.64631H8.81551L7.96925 12.9489C7.64154 14.6157 8.31445 15.497 10.1606 15.497L10.9886 15.5Z"
+      fill="white"
+    />,
+  ],
+})
diff --git a/dapp/src/static/icons/index.ts b/dapp/src/static/icons/index.ts
new file mode 100644
index 000000000..66c6e3aa9
--- /dev/null
+++ b/dapp/src/static/icons/index.ts
@@ -0,0 +1,4 @@
+export * from "./Info"
+export * from "./Bitcoin"
+export * from "./Ethereum"
+export * from "./ChevronRight"
diff --git a/dapp/src/theme/Button.ts b/dapp/src/theme/Button.ts
index 8ced1b54b..0273e2162 100644
--- a/dapp/src/theme/Button.ts
+++ b/dapp/src/theme/Button.ts
@@ -1,7 +1,8 @@
 import { mode } from "@chakra-ui/theme-tools"
 import type { StyleFunctionProps } from "@chakra-ui/styled-system"
+import { ComponentSingleStyleConfig } from "@chakra-ui/react"
 
-const Button = {
+const Button: ComponentSingleStyleConfig = {
   baseStyle: {
     rounded: "none",
   },
@@ -16,6 +17,10 @@ const Button = {
       color: mode("grey.700", "grey.700")(props),
       borderColor: mode("grey.700", "grey.700")(props),
     }),
+    link: (props: StyleFunctionProps) => ({
+      color: mode("black", "grey.50")(props),
+      textDecoration: "underline",
+    }),
   },
 }
 
diff --git a/dapp/src/theme/Switch.ts b/dapp/src/theme/Switch.ts
new file mode 100644
index 000000000..1529dda02
--- /dev/null
+++ b/dapp/src/theme/Switch.ts
@@ -0,0 +1,18 @@
+import { ComponentSingleStyleConfig } from "@chakra-ui/react"
+
+const Switch: ComponentSingleStyleConfig = {
+  baseStyle: {
+    track: {
+      _checked: {
+        _dark: {
+          bg: "purple",
+        },
+        _light: {
+          bg: "grey.200",
+        },
+      },
+    },
+  },
+}
+
+export default Switch
diff --git a/dapp/src/theme/index.ts b/dapp/src/theme/index.ts
index da30dfa56..4a6b9847e 100644
--- a/dapp/src/theme/index.ts
+++ b/dapp/src/theme/index.ts
@@ -1,10 +1,18 @@
-import { StyleFunctionProps, extendTheme } from "@chakra-ui/react"
+import { StyleFunctionProps, Tooltip, extendTheme } from "@chakra-ui/react"
 import { mode } from "@chakra-ui/theme-tools"
 import Button from "./Button"
-import { colors } from "./utils"
+import Switch from "./Switch"
+import { colors, fontSizes, fontWeights, lineHeights } from "./utils"
+
+// Currently, there is no possibility to set all tooltips with hasArrow by defaultProps.
+// Let's override the defaultProps as follows.
+Tooltip.defaultProps = { ...Tooltip.defaultProps, hasArrow: true }
 
 const defaultTheme = {
   colors,
+  fontSizes,
+  fontWeights,
+  lineHeights,
   styles: {
     global: (props: StyleFunctionProps) => ({
       body: {
@@ -16,6 +24,7 @@ const defaultTheme = {
   },
   components: {
     Button,
+    Switch,
   },
 }
 
diff --git a/dapp/src/theme/utils/fonts.ts b/dapp/src/theme/utils/fonts.ts
new file mode 100644
index 000000000..18a482760
--- /dev/null
+++ b/dapp/src/theme/utils/fonts.ts
@@ -0,0 +1,22 @@
+export const fontSizes = {
+  xs: "0.75rem",
+  sm: "0.875rem",
+  md: "1rem",
+  lg: "1.125rem",
+  xl: "1.25rem",
+}
+
+export const fontWeights = {
+  medium: 500,
+  semibold: 600,
+  bold: 700,
+  black: 900,
+}
+
+export const lineHeights = {
+  xs: "1.125rem",
+  sm: "1.25rem",
+  md: "1.5rem",
+  lg: "1.75rem",
+  xl: "1.875rem",
+}
diff --git a/dapp/src/theme/utils/index.ts b/dapp/src/theme/utils/index.ts
index c0b5e2654..9f377b3e3 100644
--- a/dapp/src/theme/utils/index.ts
+++ b/dapp/src/theme/utils/index.ts
@@ -1 +1,2 @@
 export * from "./colors"
+export * from "./fonts"
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 371dfb09f..257a3a017 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -19,6 +19,10 @@ importers:
         version: 11.2.1
 
   core:
+    dependencies:
+      '@openzeppelin/contracts':
+        specifier: ^5.0.0
+        version: 5.0.0
     devDependencies:
       '@nomicfoundation/hardhat-chai-matchers':
         specifier: ^2.0.2
@@ -88,7 +92,7 @@ importers:
         version: 4.0.0
       solhint-config-thesis:
         specifier: github:thesis/solhint-config
-        version: github.com/thesis/solhint-config/159587cd6103f21aaa7fbadc17a06717a51b5b42(solhint@4.0.0)
+        version: github.com/thesis/solhint-config/266de12d96d58f01171e20858b855ec80520de8d(solhint@4.0.0)
       solidity-coverage:
         specifier: ^0.8.5
         version: 0.8.5(hardhat@2.19.1)
@@ -4421,6 +4425,10 @@ packages:
       - supports-color
     dev: true
 
+  /@openzeppelin/contracts@5.0.0:
+    resolution: {integrity: sha512-bv2sdS6LKqVVMLI5+zqnNrNU/CA+6z6CmwFXm/MzmOPBRSO5reEJN7z0Gbzvs0/bv/MZZXNklubpwy3v2+azsw==}
+    dev: false
+
   /@openzeppelin/defender-admin-client@1.52.0(debug@4.3.4):
     resolution: {integrity: sha512-CKs5mMLL7+nXyugsHaAw0aPfLwFNA+vq7ftuJ3sWUKdbQRZsJ+/189HAwp2/BJC64yUbarEeWqOh3jNpaKRJLw==}
     dependencies:
@@ -15402,9 +15410,9 @@ packages:
       prettier: 3.1.0
     dev: true
 
-  github.com/thesis/solhint-config/159587cd6103f21aaa7fbadc17a06717a51b5b42(solhint@4.0.0):
-    resolution: {tarball: https://codeload.github.com/thesis/solhint-config/tar.gz/159587cd6103f21aaa7fbadc17a06717a51b5b42}
-    id: github.com/thesis/solhint-config/159587cd6103f21aaa7fbadc17a06717a51b5b42
+  github.com/thesis/solhint-config/266de12d96d58f01171e20858b855ec80520de8d(solhint@4.0.0):
+    resolution: {tarball: https://codeload.github.com/thesis/solhint-config/tar.gz/266de12d96d58f01171e20858b855ec80520de8d}
+    id: github.com/thesis/solhint-config/266de12d96d58f01171e20858b855ec80520de8d
     name: solhint-config-thesis
     version: 0.1.0
     engines: {node: '>=0.10.0'}