About: http://webisa.webdatacommons.org/455020009

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 user, such as name, user ID, and so on.) One or more digital signatures.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com