contract CryptonomicaVerification {

    // returns 0 if verification is not revoked
    function revokedOn(address _address) external view returns (uint unixTime);

    function keyCertificateValidUntil(address _address) external view returns (uint unixTime);

}
/**
 * see: https://www.cryptonomica.net/#!/verifyEthAddress/
 * in our smart contract every new admin should have a verified identity on cryptonomica.net
 */
function revokedOn(address _address) external view returns (uint unixTime);

// returns 0 if verification is not revoked