The term prostate specific antigen is identified in base64 scheme by the sequence cHJvc3RhdGUgc3BlY2lmaWMgYW50aWdlbg==, while the MD5 signature is equal to ab4c19b6b7b5784fab226fe276471526. The ASCII encoding of prostate specific antigen in hexadecimal notation is 70726f737461746520737065636966696320616e746967656e.