The term pleistocene epoch is identified in base64 scheme by the sequence cGxlaXN0b2NlbmUgZXBvY2g=, while the MD5 signature is equal to dbfa58fc1c12458bd652f30e531e315a. The ASCII encoding of pleistocene epoch in hexadecimal notation is 706c656973746f63656e652065706f6368.