PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • While Digest authentication is still far superior to Basic authentication, there are a number of security issues that one must keep in mind.In this respect, the Digest example given above is somewhat flawed, because the nonce never times out or otherwise become invalid.
http://www.w3.org/ns/prov#wasQuotedFrom
  • php.net