About: http://webisa.webdatacommons.org/98522178

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	This directive works in conjunction with push_stream_authorized_channels_only to preserve the server from a kind of attack where a subscriber sign one normal channel and many nonexistent broadcast channels.
http://www.w3.org/ns/prov#wasQuotedFrom	nginx.org