Is that what you believe, or what you think should be true?
I just ask because that would imply that a collector or museum only cares about the final image and therefore places the same value on a JPEG shared on Dropbox as a print made by Ansel Adams. I don't know much (anything) about how museums decide what to purchase, but I'm guessing provenance plays a role in certain purchases?
Neither. It is simple fact, whether we like it or not. Provenance has nothing whatever to do with how something was made. Provenance is a record of a work of art's ownership, an important thing when buying and selling work after it has left the artist's studio. If you can show a paper trail documenting purchases and sales of a piece going back to the artist and showing every owner the piece has had, that proves the piece is authentic, not a forgery (or a modern print from the original neg).
Fine Art Photography of Indiana and other places no one else photographs.