The term sir alexander robertus todd is identified in base64 scheme by the sequence c2lyIGFsZXhhbmRlciByb2JlcnR1cyB0b2Rk, while the MD5 signature is equal to ef148bb2b4a0b7ea6c91d4f241cff211. The ASCII encoding of sir alexander robertus todd in hexadecimal notation is 73697220616c6578616e64657220726f62657274757320746f6464.