About: http://webisa.webdatacommons.org/122555112

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	Various types of certificates and their properties including extensions.
http://www.w3.org/ns/prov#wasQuotedFrom	mindprod.com