core/connext/helpers/BridgeToken.sol:134:    bytes32 _digest = keccak256(abi.encodePacked(_EIP712_PREFIX_AND_VERSION, domainSeparator(), _hashStruct));
core/connext/libraries/ConnextMessage.sol:178:    return keccak256(abi.encodePacked(bytes(_name).length, _name, bytes(_symbol).length, _symbol, _decimals));
