The term heterogeneousness is identified in base64 scheme by the sequence aGV0ZXJvZ2VuZW91c25lc3M=, while the MD5 signature is equal to 0a76e78e0697383b8fd08dcfbdff113e. The ASCII encoding of heterogeneousness in hexadecimal notation is 68657465726f67656e656f75736e657373.