About: http://webisa.webdatacommons.org/182009722

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	So, if publishers insist on some sort of DRM then maybe what should be done is ton encrypt the books with an open source standard encryption algorithm using the customers credit card number.
http://www.w3.org/ns/prov#wasQuotedFrom	mobileread.com