About: http://webisa.webdatacommons.org/120431181

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	An inaudible code is inserted into the audio signal of radio, broadcast and cable television channels, Internet streaming sites, and other media outlets.
http://www.w3.org/ns/prov#wasQuotedFrom	warc.com