The term semi-abstraction is identified in base64 scheme by the sequence c2VtaS1hYnN0cmFjdGlvbg==, while the MD5 signature is equal to 44286ef536b593b5e867cb9b236c475f. The ASCII encoding of semi-abstraction in hexadecimal notation is 73656d692d6162737472616374696f6e.