About: http://webisa.webdatacommons.org/308699392

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 the case of an electronic watermark that uses a spectrum spread system, for example, there is an update method that writes over the electronic watermark using a different key than was used when embedding the original watermark.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com