About: http://webisa.webdatacommons.org/269155413

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	In a principal aspect, the present invention is a system for verifying the presence of an individual within a certain area.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com