A tough one
The concept of Adobe's wish to add content verification from end to end, from a supported camera all the way through, sounds nice but reality holds a somewhat different viewpoint:
What about RAW?
When a photographer shoots raw, as any good photographer does, it *must* be processed later, otherwise it is nothing but a series of meaningless bits. Now, quite a bit can be done inside ACR nowadays, from altering color mapping to patch spotting. Yet all of that can be included in the ACR processing, which is again an absolute requirement.
So what do you call authentic, when raw has to be processed but you can modify the photo within said process??