tokenbridge-contracts/contracts/upgradeable_contracts/ERC677Storage.sol

pragma solidity 0.4.24;

contract ERC677Storage {
    bytes32 internal constant ERC677_TOKEN = 0xa8b0ade3e2b734f043ce298aca4cc8d19d74270223f34531d0988b7d00cba21d; // keccak256(abi.encodePacked("erc677token"))
}