The term ethanedioic acid is identified in base64 scheme by the sequence ZXRoYW5lZGlvaWMgYWNpZA==, while the MD5 signature is equal to db248fd75c65fc02f5bbf96777f63c44. The ASCII encoding of ethanedioic acid in hexadecimal notation is 657468616e6564696f69632061636964.