About: http://webisa.webdatacommons.org/82454781

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	Both methods require that the message be first hashed with a cryptographic digest function such as SHA-256 or SHA-512 (or their predecessor SHA-1).
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com