About: http://webisa.webdatacommons.org/34507009

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	??? The merchant (I think BitPay is doing this) can listen on the network to see if there was a double spend attempt.
http://www.w3.org/ns/prov#wasQuotedFrom	michaelnielsen.org