PoWAdvContract PoWAdvContract PoW mechanism Based on ERC541 / EIP 918 Standard ethereum/EIPs#918 https://github.com/jlogelin/ERC541-Spec-/blob/master/contracts/EIP918Interface.sol Testnet: https://ropsten.etherscan.io/address/0xdef54da6ca6c8b893dc63ace1e3a9513187f91ab