About: http://webisa.webdatacommons.org/383941541

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	The method of claim 12, wherein the first party is an electronic book publisher, the second party is an operations center of an electronic book distribution system and the third party is a certificate authority.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com