PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • As Bloomberg terminal and other trading platforms adopt XBT, the CoinDesk Bitcoin Price Index could increasingly become the de facto metric for recording historical and current exchange rates for bitcoin.
http://www.w3.org/ns/prov#wasQuotedFrom
  • coindesk.com