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The White House wants to 'cryptographically verify' videos of Joe Biden so viewers don't mistake them for AI deepfakes
(www.businessinsider.com)
This is a most excellent place for technology news and articles.
I honestly feel strategies like this should be mitigated by technically savvy journalism, or even citizen journalism. 3rd parties can sign and redistribute media in the public domain, vouching for their origin. While that doesn't cover all the unsigned copies in existence, it provides a foothold for more sophisticated verification mechanisms like a "tineye" style search for media origin.