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Matter Ethereum Smart Contract

Matter (MTR) is an ERC-20 token used by the Dragon Den social media platform to equitably divvy up NRG between users.

Deployed Contracts

Network Contract Address
Ropsten Temp 0x7BA85BE2fe2918547a8Cf9A673C8b26f18Ed331e
------- ----------------
Mainnet 0x41Febd364e5815f860c7D94829804A3638E98edD](https://etherscan.io/address/0x41Febd364e5815f860c7D94829804A3638E98edD)

Etherscan: Verify & Publish Contract Source Code

npx truffle-flattener ./contracts/Matter.sol > ./contracts/FlatMatter.sol

Development

  • Install dependencies: npm install
  • Create .env file with the below variables:
MNEMONIC="ethereum wallet mnemonic phrase used by metamask"
INFURA_ROPSTEN_API_KEY=YOUR INFURA API KEY
  • Compile contracts: truffle compile
  • Deploy contracts: truffle migrate --network NETWORK_NAME

Specification

ERC-20

function approve(address _spender, uint256 _value);
function transfer(address _to, uint256 _value);
function transferFrom(address _from, address _to, uint256 _value);

function totalSupply();
function balanceOf(address _owner);
function allowance(address _owner, address _spender);

event Transfer(address indexed _from, address indexed _to, uint256 _value);
event Approval(address indexed _owner, address indexed _spender, uint256 _value);

Refer to ERC-20 standard for detailed specification.

Minting

The mint() function can be called by anyone during the minting hour (defaulted to 23:00-23:59) as long as it's been at least 10 hours since the last mint

Contributors


hemlokc
lancekrogers
emtesenair
j0j0r0