Police investigation remains open. The photo of one of the minors included a fly; that is the logo of Clothoff, the application that is presumably being used to create the images, which promotes its services with the slogan: “Undress anybody with our free service!”
All they’d need to send to trusted servers is some basic metadata and hashes of segments of video. That’s enough to verify that the video hasn’t been tampered with after it was filmed as long as you trust the hashing function.
I don’t think that will matter very much considering how many real time video modifications we can do already today. Not to mention synthesizing video before the time it is supposed to take place.