The term huygens' principle of superposition is identified in base64 scheme by the sequence aHV5Z2VucycgcHJpbmNpcGxlIG9mIHN1cGVycG9zaXRpb24=, while the MD5 signature is equal to 68f36b8f6179f0ff0e87d8bbe664903f. The ASCII encoding of huygens' principle of superposition in hexadecimal notation is 68757967656e7327207072696e6369706c65206f66207375706572706f736974696f6e.