About: http://webisa.webdatacommons.org/158368934

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	If so, and as illustrated at 62, the checksum is compared with that of the message, if any, which has been cached to ascertain whether the data has changed or is new.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com