The term self-centeredness is identified in base64 scheme by the sequence c2VsZi1jZW50ZXJlZG5lc3M=, while the MD5 signature is equal to d59337458844351f1a3887d8d191572f. The ASCII encoding of self-centeredness in hexadecimal notation is 73656c662d63656e74657265646e657373.