About: http://webisa.webdatacommons.org/166490518

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 unauthenticated attribute field may be used for information that needs to be conveyed to the TCU and may later be used by the TCU to record various data, such as the time it received a signature block.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk