The term understandability is identified in base64 scheme by the sequence dW5kZXJzdGFuZGFiaWxpdHk=, while the MD5 signature is equal to a6c1892f471c67644f7d73b4f0d49e7f. The ASCII encoding of understandability in hexadecimal notation is 756e6465727374616e646162696c697479.