Actually come to think of it, I suppose a "special camera" could also record things like focusing distance, zoom, and accelerations/rotation rates. These could be correlated to the image seen to detect this kind of thing.
Actually come to think of it, I suppose a "special camera" could also record things like focusing distance, zoom, and accelerations/rotation rates. These could be correlated to the image seen to detect this kind of thing.
ROC Camera does exactly this
> Creates a Zero Knowledge (ZK) Proof of the camera sensor data and other metadata
https://roc.camera/