Two major torrent sites have announced plans to start filtering their search results in an effort to block copyrighted content. Both would use technology from FileRights, a company that produces software that helps content owners automatically remove their content from torrent sites around the world. Participating sites include ISOHunt and TorrentSpy.

By using the system, TorrentSpy will likely be able to show that it is making efforts to end illicit use of its site. A judge has ordered the site to start tracking users, although it has appealed and indicated it will shut down first, before identifying users. That decision is under appeal. FileRights uses a hash-based system in order to identify any copyrighted material, the company says on its website.