The term quantum field theory is identified in base64 scheme by the sequence cXVhbnR1bSBmaWVsZCB0aGVvcnk=, while the MD5 signature is equal to f6fe0d591eef2b252e5f9b2ef3f734b2. The ASCII encoding of quantum field theory in hexadecimal notation is 7175616e74756d206669656c64207468656f7279.