About: http://webisa.webdatacommons.org/406329871

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	BACKGROUND AND SUMMARY [0008] The technology for digital watermarking media content, such as images, video and audio is well known.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com