About: http://webisa.webdatacommons.org/44852488

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	Do yourself a favour and use an encryption mode which includes integrity, e.g. EAX. This makes the problem quite simpler:
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com