About: http://webisa.webdatacommons.org/338311939

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 invention is particularly valuable when the mechanisms, modules, servers or systems with which the user must be authenticated are not controlled by the same source.
http://www.w3.org/ns/prov#wasQuotedFrom	google.cl