The term al-hasan ibn al-haytham is identified in base64 scheme by the sequence YWwtaGFzYW4gaWJuIGFsLWhheXRoYW0=, while the MD5 signature is equal to 0984734284045fba2b68b6d1484be7c2. The ASCII encoding of al-hasan ibn al-haytham in hexadecimal notation is 616c2d686173616e2069626e20616c2d6861797468616d.