The term self-sacrificing is identified in base64 scheme by the sequence c2VsZi1zYWNyaWZpY2luZw==, while the MD5 signature is equal to 763407d61fc9608d85ec3a8d20a7aedf. The ASCII encoding of self-sacrificing in hexadecimal notation is 73656c662d7361637269666963696e67.