If, today, a historical digital photo were made similar to Earthrise (or perhaps of a famous person), where would that image reside? The image is on the sensor for only a moment and then off it goes to the SD card. From there, it can be copied, perfectly, ad infinitum. So there is no single instance, no unique form of that image that is directly tied to being on the very spot from which the image was made.
So it is the same with prints. A print of Earthrise would be nice, but it doesn't have the provenance of the actual negative that was in that Hasselblad.
Someone could create fake - a copy of the negative or a copy of a glass plate image made during the U.S. Civil War and it may be hard to detect that fake. However, that does not detract from the provenance of the real image - for there is only one real image.