About: http://webisa.webdatacommons.org/14177359

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	That is, it is been possible for some time, and there are a number of players (your employer, Yahoo! included) who could have pulled it off.
http://www.w3.org/ns/prov#wasQuotedFrom	seroundtable.com