The term handwriting expert is identified in base64 scheme by the sequence aGFuZHdyaXRpbmcgZXhwZXJ0, while the MD5 signature is equal to 219eecd5d26fbb70ebc55aa49ddb1377. The ASCII encoding of handwriting expert in hexadecimal notation is 68616e6477726974696e6720657870657274.