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Wouldn't it be enough to submit a hash of the photo? Then sure, that hash is around forever in the blockchain, but without the original photo that hash is usele
by twanvl 9y ago
Wouldn't it be enough to submit a hash of the photo? Then sure, that hash is around forever in the blockchain, but without the original photo that hash is useless. It can only be used to prove that the photo existed at the time the hash was added, and with a digital signature, who added it.
- eat_veggies 9y agoYou could steal a photo by tweaking a single pixel or EXIF field, and suddenly it's an original image with no registered hash.
- drewm1980 9y agoYeah, any system like this has to deal with the analog hole somehow, and there really are no perfect solutions. Reminds me of the post the other day about a white noise video on Youtube getting a bunch of copyright infringement notices. You can take a signal out of the analog, but you can't take the analog out of a signal!
- Keres 9y agoYou can do a lot to mitigate that http://www.hackerfactor.com/blog/?/archives/529-Kind-of-Like-That.html http://www.hackerfactor.com/blog/?/archives/529-Kind-of-Like...