Going forward this is not going to change, misinformation is here to stay forever.

Maybe an "immutable image format" can help. Once you save a copy, the timestamp is saved with it?

I know, this theory is full of holes and I am not a coder to make intelligent recommendations - but there is an antidote to forgery in image files, we just need to identify one then develop one.

All I can do is to inform about "immutable" storage, to show how desperately we need people to demand their uses from officials.