Probably nothing. But it solves 99% of the problems it's meant to solve. Casual insurance fraud, for example.

Preventing casual insurance fraud and guarding against deep fakes are very different problems, with a very stark contrast in terms of the effort and technical aptitude available.

Occasionally a security minded computer savy person might pull one over on the insurance company - but most clients aren't going to have the expertise or dedication to correctness. To contrast that - the pool of people who would try and produce a deep fake, especially in the political realm, have already decided to invest a good amount of investigation and effort and are likely rather technically minded.

So this would stop the script-kiddie equivalent actor in the deep fake realm, but I am more concerned about dedicated nefarious actors.

The point is to have an immutable source to compare against. If you suspect a video is faked, you can find the verified original video that was used to make the fake and compare against it.

What if the fake video is the first one to be uploaded?

That’s where they use their fancy computer vision software to determine if the source has been tampered with.

And if they can’t determine that?

I think this is sort of where we realize that Oscar Wilde was actually the democratic candidate in the 2016 election - falsely attributed quotes have gotten out of hand and even relatively reputable sources have made this mistake... I suspect the same will be true of videos soon, your trust in the accuracy of the information will be solely tied to your trust in the organization - if you don't trust NYT you won't trust videos you see there and declare them "fake news", ditto for Fox and everyone else.

This is leading society to a very dangerous place where the truth is becoming a matter of opinion.

We've been there. It led to impartial professionals who, in person, report what they witnessed, and who made a career out of being truthful and exact.

The Bard is back again!

Yes, it's an arms race. Surely this is obviously the case?

"What if the government can't determine if a 100 dollar bill is fake?"

Answer to both questions: those who have a vested interest in detecting fakes spend more money on fake-detection mechanisms.

This is why I think a dolution will involve hardware signing, and maybe some integration with a.photoediting suite