MMX is a blockchain written from scratch using Chia's Proof Of Space and a SHA256 VDF similar to Solana.
It's main features are as follows:
- High performance (1000 transactions per second or more)
- Variable supply (block reward scales with netspace, but also is capped by TX fees)
- Consistent block times (every 10 seconds a block is created)
- Native token support (swaps are possible with standard transactions)
- Energy saving Proof of Space (same as Chia)
- Standard ECDSA signatures for seamless integration (same as Bitcoin)
MMX is desiged to be a blockchain that can actually be used as a currency.
For example the variable supply will stabilize the price, one of the key properties of any currency.
Furthermore, thanks to an efficient implementation and the avoidance of using a virtual machine, it will provide low transaction fees even at high throughput.
Tokes can either be traditionally issued by the owner, or they can be owner-less and created by staking another token over time, in a decentralized manner governed by the blockchain.
In the future it is planned that anybody can create their own token on MMX using a simple web interface.
In addition the first application for MMX will be a decentralized exchange where users can trade MMX and tokens.
The variable reward function is as follows:
reward = max(max(difficulty * const_factor, min_reward), TX fees).
Where min_reward and const_factor are fixed at launch.
A mainnet launch is planned in ~6 months or so. Currently we are running the first testnet, so the coins farmed right now are not worth anything.
To use the CLI:
cd mmx-node
source ./activate.sh
The node needs to be running, see below how to start it.
To check your balance: mmx wallet show
To show wallet activity: mmx wallet log
To show the first 10 addresses: mmx wallet show 10
To get a specific receiving address: mmx wallet get address [index]
To send coins: mmx wallet send -a <amount> -t <address>
To get the seed value from a wallet: mmx wallet get seed
To use a non-default wallet specify -j <index> with above commands (at the end).
To check on the node: mmx node info
To check on the peers: mmx node peers
To check on a transaction: mmx node tx <txid>
To check the balance of any address: mmx node balance <address>
To dump a transaction: mmx node get tx <txid>
To dump a block: mmx node get block <height>
To dump a block header: mmx node get header <height>
To force a re-sync: mmx node sync
To get connected peers: mmx node get peers
To check on the farm: mmx farm info
To get total space in bytes: mmx farm get space
To show plot directories: mmx farm get dirs
To reload plots: mmx farm reload
First finish the installtion step below.
To continue enter the CLI environment:
cd mmx-node
source ./activate.sh
mmx wallet create [-f filename]
The file name argument is optional, by default it is wallet.dat, which is already included in the default configuration.
To use more wallets add the paths to key_files+ array in config/local/Wallet.json.
To create a wallet with a known seed value:
mmx wallet create <seed> [-f filename]
To get the seed value from a wallet:
mmx wallet get seed [-j index]
First perform the installation and setup steps.
To run a node for current testnet1
./run_node.sh
You can enable port forwaring on TCP port 12331 if you want to help out the network and accept incoming connections.
To run a node in the background you can enter a screen session:
screen -S node
(start node as above)
<Ctrl+A> + D (to detach)
screen -r node (to attach again)
To disable the TimeLord specify --timelord 0 on the command line.
Alternatively, you can also disable it by default: echo false > config/local/timelord.
If you have a slow CPU this is recommended and maybe even needed to stay in sync.
To re-sync starting from a specific height: --Node.replay_height <height>.
This is needed if for some reason you forked from the network.
To re-sync from scratch delete block_chain.dat.
To get the farmer and pool keys for plotting:
mmx wallet keys [-j index]
The node needs to be running for this command to work. (-j to specify the index of a non-default wallet)
Then use my plotter with -x 11337 argument: https://github.com/madMAx43v3r/chia-plotter
The minimum K size for mainnet will probably be k30, for testnets it is k26. The plots from testnets can be reused for mainnet later. It's possible there will be a time limit for k30 and k31 though, something like 3 years for k30 and 6 years for k31, to prevent grinding attacks in the future.
To add a plot directory add the path to plot_dirs array in config/local/Harvester.json, for example:
{
"plot_dirs": ["/mnt/drive1/plots/", "/mnt/drive2/plots/"]
}
Ubuntu Linux:
sudo apt update
sudo apt install git cmake build-essential libsecp256k1-dev libsodium-dev zlib1g-dev ocl-icd-opencl-dev clinfo screen
Arch Linux:
sudo pacman -Syu
sudo pacman -S base-devel git cmake zlib libsecp256k1 libsodium ocl-icd clinfo screen
OpenCL provides faster and more effient VDF verification using an integrated or dedicated GPU. A standard iGPU found in Intel CPUs with 192 shader cores is plenty fast enough. If you dont have a fast quad core CPU (>3 GHz) or higher core count CPU, it is required to have a GPU with OpenCL support.
Make sure to be in the video and or render group (depends on distribution) to be able to access a GPU:
sudo adduser $USER video
sudo adduser $USER render
git clone https://github.com/madMAx43v3r/mmx-node.git
cd mmx-node
git submodule update --init --recursive
./make_devel.sh
To update to latest version:
./update.sh
To setup Ubuntu 20.04 in WSL on Windows you can follow the tutorial over here:
https://docs.microsoft.com/en-us/learn/modules/get-started-with-windows-subsystem-for-linux/
Make sure to install Ubuntu in step 2: https://www.microsoft.com/store/p/ubuntu/9nblggh4msv6
Then type "Ubuntu" in the start menu and start it, you will be asked to setup a user and password. After that you can follow the normal instructions for Ubuntu 20.04.
To get OpenCL working in WSL: https://devblogs.microsoft.com/commandline/oneapi-l0-openvino-and-opencl-coming-to-the-windows-subsystem-for-linux-for-intel-gpus/
If you don't have a system package for libsecp256k1:
cd mmx-node/secp256k1
./autogen.sh
./configure
make -j8
cd ..
./make_devel.sh -DWITH_SECP256K1=1
Ubuntu 20.04, 21.04
sudo apt install intel-opencl-icd
Ubuntu ppa for 18.04, 20.04, 21.04
sudo add-apt-repository ppa:intel-opencl/intel-opencl
sudo apt update
sudo apt install intel-opencl-icd
For older Intel CPUs like Ivy Bridge or Bay Trail you need this package:
sudo apt install beignet-opencl-icd
Make sure your iGPU is not somehow disabled, like here for example: https://community.hetzner.com/tutorials/howto-enable-igpu
Linux:
https://www.amd.com/en/support/kb/release-notes/rn-amdgpu-unified-linux-21-20
https://www.amd.com/en/support/kb/release-notes/rn-amdgpu-unified-linux-21-30
./amdgpu-pro-install -y --opencl=pal,legacy
Windows: https://google.com/search?q=amd+graphics+driver+download
Install CUDA, may the force be with you:
https://www.google.com/search?q=nvidia+cuda+download
Arch Linux:
sudo pacman -S nvidia nvidia-utils opencl-nvidia