The term commercial document is identified in base64 scheme by the sequence Y29tbWVyY2lhbCBkb2N1bWVudA==, while the MD5 signature is equal to 53731fa9b00e4f4dd83f617749a2daa8. The ASCII encoding of commercial document in hexadecimal notation is 636f6d6d65726369616c20646f63756d656e74.