About: http://webisa.webdatacommons.org/319486830

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	A certification provider maintains the digital certification signature, an identification code such as a serial number, and other information such as the time and date of certification.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com