The term threshold operation is identified in base64 scheme by the sequence dGhyZXNob2xkIG9wZXJhdGlvbg==, while the MD5 signature is equal to 7a12d8503c0899796aca4a1d6a154998. The ASCII encoding of threshold operation in hexadecimal notation is 7468726573686f6c64206f7065726174696f6e.