The term diffraction grating is identified in base64 scheme by the sequence ZGlmZnJhY3Rpb24gZ3JhdGluZw==, while the MD5 signature is equal to 6a7e7a85b24a58a3912d199d79b2c0ba. The ASCII encoding of diffraction grating in hexadecimal notation is 6469666672616374696f6e2067726174696e67.