About: http://webisa.webdatacommons.org/202105459

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	it is built on OpenID4Java and the code to write a relying party is mostly the same.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com