The term nitrogen fixation is identified in base64 scheme by the sequence bml0cm9nZW4gZml4YXRpb24=, while the MD5 signature is equal to a0097a8810950edd9b9e0950eaf908d0. The ASCII encoding of nitrogen fixation in hexadecimal notation is 6e6974726f67656e206669786174696f6e.