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Deepfake vs. Bitcoin

Encrypted verification of video content
  [vote for,

Very soon, it seems that we will no longer be able to trust our eyes when it comes to video speeches taken of, well, anyone important.  Deepfake videos are most probably being developed at this very moment of every major candidate, saying, doing, something slightly off of their usual, in order to tilt the next election cycle and drive the news.

Fortunately, we also have developed some methods of verification of transaction.  Bitcoins record every transaction of a mined coin as it progresses through its economic life.  Bear with me.  Computer cryptography, programming, and hashing aren't really my thing.  Computers are barely my thing.

Video viewership can be seen as a type of transaction.  An authenticated video of a real person doing a real event could be recorded with a hash of the event's location, date, etc. that could be processed by a datacenter and turned into a key of some type.  News orgs wishing to verify that said video was real could register with that datacenter and retreive a handshake of some form that agrees with the key.  Or the video itself could be hashed into a strong encryption which is then verified against a key somehow.

Weaknesses of this type of verification method would be primarily the time.  The true video would have a hard time staying ahead of the deepfakes shared on social media or wherever these types of things are disseminated.

RayfordSteele, Jun 10 2019

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       Before the Singularity, this would have made some sense. But now, when everthing is just an artefact of [Ian Tindale]'s deranged imagination, it seems a trifle pointless.
8th of 7, Jun 10 2019

       Perhaps the singularity will rule us this way. For some reason this seems strangely comforting.
RayfordSteele, Jun 10 2019

       New Scientist, 16th March 2019, p.22-3, "Don't believe your eyes: smartphones equipped with artificially intelligent cameras are changing how we see reality".
P.23 column 2: "If a whole generation grows up not trusting photos or videos, what do we have left?" says Raskar. Digital watermarking and cloud-based encryption are possibilities, he says, as is using the blockchain technology behind bitcoin.
pocmloc, Jun 11 2019

       So I'm on the right track. I'll take that as confirmation.
RayfordSteele, Jun 11 2019

       ins't the bigger problem not trusting reality?   

       You cannot fix fakes with encryption, unless we imagine all recording equipment having encryption built in, in a way that is not modifiable or "turn-offable".   

       Computer analysis would be able to distinguish fakes for a long time to come based, in the same way that you can still tell CGI even when the movie costs $250 Million to make. But it will get harder.   

       I suspect that given where drones and video generally are going, people who care will likely have alibi drones. You could come up with a system where their video would not be accessible without witness cooperation (to avoid self- incrimination) but multiple sources could then verify where/what you were doing when the deepfake allegedly occurred
theircompetitor, Jun 11 2019

       This is why I have for a while wanted a way to cryptographically sign things I say or write before they leave my brain, using a private key that never leaves my brain. Unfortunately, I have as yet no idea how to begin to conceive of a mechanism that could accomplish that. A probably minor difficulty that occurs to me right now is that it's impossible with current algorithms (that I know about) to sign a text before the wording is finalized, while things that one speaks and writes hardly ever have the final wording before they come out.   

       On the other hand, deepfakes give a lot more plausible deniability, which can be a good thing too (for the individual accused, at least). For example, if you want to get away with having said racist things in the past, you can just claim someone faked the video. But if you signed the words when they came out of your mouth, you can't.
notexactly, Jun 11 2019

       Didn't I read something about attempts at using quantum mechanics for information security awhile back where you could always detect if a transmission was compromised? Couldn't something like that be utilized?
RayfordSteele, Jun 11 2019

       Errr, how do we know you posted this?
not_morrison_rm, Jun 13 2019

       Come to that, how do you know anything ?   

       <Wonders if teaching [n_m_rm] phenomenology will cause him to self-destruct/>   

       <Decides it's worth a try, cleans blackboard, shuffles lecture notes/>
8th of 7, Jun 13 2019

       There is nothing.
pocmloc, Jun 14 2019


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