Well Justin has partnered with "The Man" to filter content, so.....not sure how pure and clean Justin is. lol
We're working with Vobile to filter content on Justin.tv using their database of content. As of this week we've begun fingerprinting all saved clips on Justin.tv and scanning them against Vobile's content database. Channels with clips that are found to be infringing have their clips removed and the channel is taken offline. We've just rolled out that process for archived clips. The next step of this project will come in November, when we'll expand the fingerprinting system to all live video. It's a big undertaking to scale this system up to cover all of our live video--Justin.tv users upload 24.3 hours of live video per minute.
This new filtering is part of a deal with signed with Fox to increase copyright protection for live video. We already offer a takedown tool that lets copyright owners login to a Justin.tv admin interface and kill channels in real time, and hundreds of content owners are using it today. Other companies handle this by forcing content owners to email or submit a takedown form, which is processed manually. When live content is in play, that method is useless because the event is usually over before a manual process can address it.