The term circulating library is identified in base64 scheme by the sequence Y2lyY3VsYXRpbmcgbGlicmFyeQ==, while the MD5 signature is equal to 39c419baf3aedf12882ac5104cd65307. The ASCII encoding of circulating library in hexadecimal notation is 63697263756c6174696e67206c696272617279.