About: http://webisa.webdatacommons.org/422426236

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	I didn't realise when writing my first response that you can not open a stream directly from the media library - your solution is the best approach.
http://www.w3.org/ns/prov#wasQuotedFrom	codeproject.com