The term alpha fetoprotein is identified in base64 scheme by the sequence YWxwaGEgZmV0b3Byb3RlaW4=, while the MD5 signature is equal to fe0c23d6ff1bc1b3b3edf7d46fe1a7ce. The ASCII encoding of alpha fetoprotein in hexadecimal notation is 616c706861206665746f70726f7465696e.