The term kayser-fleischer ring is identified in base64 scheme by the sequence a2F5c2VyLWZsZWlzY2hlciByaW5n, while the MD5 signature is equal to 4649f74ed06e3dd280ad6bd96a9f66fb. The ASCII encoding of kayser-fleischer ring in hexadecimal notation is 6b61797365722d666c656973636865722072696e67.