The term auld langsyne is identified in base64 scheme by the sequence YXVsZCBsYW5nc3luZQ==, while the MD5 signature is equal to 5f6862f1f665cdc3fa33ffcbaa03e7d5. The ASCII encoding of auld langsyne in hexadecimal notation is 61756c64206c616e6773796e65.