The term rank-difference correlation coefficient is identified in base64 scheme by the sequence cmFuay1kaWZmZXJlbmNlIGNvcnJlbGF0aW9uIGNvZWZmaWNpZW50, while the MD5 signature is equal to 75b3e34a1947032b8aa3a5c35d36bf3f. The ASCII encoding of rank-difference correlation coefficient in hexadecimal notation is 72616e6b2d646966666572656e636520636f7272656c6174696f6e20636f656666696369656e74.