The term grandfather clock is identified in base64 scheme by the sequence Z3JhbmRmYXRoZXIgY2xvY2s=, while the MD5 signature is equal to 9c225fee55f3bdded3b2d48e527d6fee. The ASCII encoding of grandfather clock in hexadecimal notation is 6772616e6466617468657220636c6f636b.