About: http://webisa.webdatacommons.org/260608867

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	At the same time, one can use his private key to sign a message, and other people use his public key to verify that it is him who sign it.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com