Lon Seidman, as seen in his video CTTechJunkie Lon Seidman knew he wasn’t going to get rich from his three-hour video discussion of the Curiosity rover landing on Mars . The local media entrepreneur did a live Google+ Hangout about the event and posted the resulting video to YouTube, expecting it would earn him a few bucks and attract some new readers to his site, CT Tech Junkie.  During the discussion, Seidman played a number of NASA videos about the Curiosity mission. He knew he was on safe ground because works of the federal government are automatically in the public domain. So he was surprised to find that no fewer than five other media organizations (mostly television stations, including some from overseas) had “claimed” the content of his video through YouTube’s Content ID system. It appears that the other media organizations had uploaded their own news broadcasts—which contained the same public domain material—to Content ID’s matching system. The fact that Seidman’s video used the same content was enough to trigger a content match.

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How YouTube lets content companies "claim" NASA Mars videos