http://www.rfc-editor.org/rfc/rfc2803.txt
RFC 2803: Digest Values for DOM (DOMHASH), H. Maruyama, K. Tamura, N. Uramoto2000-04-01T23:00:00-00:00This memo defines a clear and unambiguous definition of digest (hash) values of the XML objects regardless of the surface string variation of XML. This memo provides information for the Internet community.