The term commonplace book is identified in base64 scheme by the sequence Y29tbW9ucGxhY2UgYm9vaw==, while the MD5 signature is equal to 867dddf79837782ea078b0b8a3bfd567. The ASCII encoding of commonplace book in hexadecimal notation is 636f6d6d6f6e706c61636520626f6f6b.