602
Jack Dorsey Releases Vine Reboot Where AI Content Is Banned
(futurism.com)
This is a most excellent place for technology news and articles.
while a phone signing a video to show that it was captured with the camera is possible, it will be easy too to fake the signature. all it would take would be a hacked device to steal the private key. and even if apple/google/samsung have perfectly secure systems to sign the origin of the video, there would be ton of cheaper phones that would likely won't.