"Hard proof" is different from "evidence". In my opinion, there is some evidence: https://news.ycombinator.com/item?id=24934971

Of course it's not proof, but there's currently some evidence indicating it's real, and currently no evidence indicating it's doctored. Given the circumstances, it'd be extremely irresponsible for any media outlet to assume they're definitely true, but it's almost as irresponsible to assume they can't possibly be true and to not even raise the possibility they could be real.