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Target

the target of the cross chain, such as eth, erc20, ibc/0/px etc.

target specifies the operation after the cross chain, such as converting to ERC20 token, cross chain to other cosmos chain through ibc, or cross chain to external chain through crosschain module.

Target Rule

Empty

if target is empty, the cross chain token will be only processed by the cross chain module, and stay on f(x)Core.

for example:

if user call ethereum bridge contract sendToFx method, the target is empty, the token will be transfer to address on f(x)Core

Prefix with ibc

if target is prefixed with ibc, the token will transfer to other cosmos chain through ibc module.

for example:

if user call ethereum bridge contract sendToFx method, the target is ibc/0/px, the token will be transfer to address on pundix chain

if user call f(x)Emv CrossChain contract crossChain method, the target is ibc/0/px, the token will be transfer to address on pundix chain

Module Name

if target equals to module name, the token will process by the module, and send to external chain or convert to f(x)Core ERC20 token.

for example:

if user call ethereum bridge contract sendToFx method, the target is erc20, the token will be transfer to f(x)Core ERC20 token.

if user call f(x)Core CrossChain contract crossChain method, the target is eth, the token will be transfer to ethereum chain.

Target Support

  • "" means empty string
  • ❌ means not support
  • ... means more
  • - means no value

sendToFx cross chain with Target

external-chain f(x)Core pundix Cosmos-Chain Ethereum BSC External-Chain
Ethereum erc20 ibc/0/px ibc/{channel-id}/{address-prefix} ❌ ❌ ❌
BSC erc20 ibc/0/px ibc/{channel-id}/{address-prefix} ❌ ❌ ❌
Polygon erc20 ibc/0/px ibc/{channel-id}/{address-prefix} ❌ ❌ ❌
Tron erc20 ibc/0/px ibc/{channel-id}/{address-prefix} ❌ ❌ ❌
Avalanche erc20 ibc/0/px ibc/{channel-id}/{address-prefix} ❌ ❌ ❌
Arbitrum erc20 ibc/0/px ibc/{channel-id}/{address-prefix} ❌ ❌ ❌
Optimism erc20 ibc/0/px ibc/{channel-id}/{address-prefix} ❌ ❌ ❌
... erc20 ibc/0/px ibc/{channel-id}/{address-prefix} ❌ ❌ ❌

{% hint style="info" %} FX is the native token, when cross chain to fx-core, no need to convert to ERC20, so the target is "", if other token, need to convert to ERC20, so the target is erc20 {% endhint %}

f(x)Core cross chain with Target

f(x)Core Ethereum BSC Polygon Tron Avalanche Arbitrum Optimism External-Chain Pundix Cosmos-Chain
- eth bsc polygon tron avalanche arbitrum optimism {module-name} ibc/0/px ibc/{channel-id}/{address-prefix}

{% hint style="info" %} if cross chain to other cosmos-chain, need to specify channel-id and address-prefix in target, for example: cross chain to cosmos-hub, need to find the channel-id of cosmos-hub on f(x)Core, and the address-prefix of cosmos-hub, then fill in the target in the format of ibc/{channel-id}/{address-prefix}, if the channel-id of cosmos-hub on f(x)Core is channel-8, and the address-prefix is cosmos, then the target is ibc/8/cosmos {% endhint %}