PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • But I doubt that the general public would find it attractive as it would be more expensive than what email is right now (the expense, no matter how small, might be prohibitive for some groups of people, such as children and people in poor countries), would likely make it impossible to send anonymous email and would generally be harder to setup and to use (without IT-support that is).
http://www.w3.org/ns/prov#wasQuotedFrom
  • scienceblogs.com