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Comment by Choco31415 | Hacker News Reader

10+ years ago we started getting the technologies for facial land mark detection, and now we have facial swapping. Currently we have the beginnings of good full-body pose derection, and I imagine soon we’ll eventually have full body swapping (maybe along with clothes).

That raises interesting questions. As legitimate looking sources become harder to trust, what other ways can we verify them? One idea that was floating around is key signing each datafile. That raises the question though of how to manage keys. [ Maybe have each key tied to a digital id, the id similar to Estonia e-residency? ]

At low levels of risk, like a recorded automobile accident, is such scrutiny useful?

Thoughts everyone?

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Couldn't blockchain be a great tool here? The original hash is uploaded to the blockchain at the time of the recording, then you can verify that nothing has changed since then.

There is already tech in filming to know what camera filmed what footage. I imagine there will be some kind of process happening soon that links footage through its changes, all the way from capture to broadcast.

I think this is part of what KODAKCoin is suggested to provide. But video footage goes through so many post processing steps that I’m not sure how that helps (or if it even matters) since the viewing audience likely won’t care about these things if a video supports their narrative.

Posted in a sibling thread already, but what about supplemental data streams related to environmental data (to verify time and position) that cannot be faked, somehow combined with the rasterized/sampled a/v in an irreversible way, or a new technology that doesn’t use traditional pixelized video or sampled audio that can’t be faked?

Surely there will be an innovation since there clearly is a need for this.

I don't believe a signing solution is feasible. It's currently too complicated for even a lot of IT experts, and the amount of actors involved is too large to even move to a single unified solution.

Given that as of now authenticity can still be verified by experts, it's back to trusting journalistic outlets to properly verify news and sources.

Reminds me of tango and cash. Is this really true? Any sources for such verification techniques?

One might think that, given low enough resolution, any form of rasterized video or sampled audio can be convincingly faked even to experts, particularly once those with the faking technology fully assimilate such verification techniques so as to work around them.

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