This is interesting: While capturing video this tool generates "hashes" at regular intervals—cryptographically scrambled representations of the data—that then get recorded on a public blockchain. Any changes tip you off to manipulated video https://www.wired.com/story/amber-authenticate-video-validation-blockchain-tampering-deepfakes/?mbid=social_twitter_onsiteshare … @lilyhnewman
Nice photo of @axon_us bodycam for the story. 
Note: Axon bodycams don’t use this tech to prevent deepfakes, they have their own solution. Secure authenticity (and audit trail) for evidentiary video is critical to a properly functioning justice system
