Are the raw photos manipulated or are they just the original 1s and 0s unedited?
Not sure if there’s any preprocessing before the processing.
Edit: I’m imagining a digital camera that cryptographicly signs each raw frame before any processing with a timestamp and GPS location. Would be the best you could probably do. Could upload it’s hash to a block chain for proof of existence as well.
Edit: I guess the GPS system would need some sort of ceyptographic handshake with the camera to prove the location was legitimately provided by the satellite as well.