Photographers (and digital artists) commonly already use something called a “Certificate of Authenticity” or COA, a physical document signed by the artist verif

Photographers (and digital artists) commonly already use something called a “Certificate of Authenticity” or COA, a physical document signed by the artist verifying that the item is one of a batch, and that the batch has a fixed, limited size. NFTs aren’t providing anything beyond what a COA provides, and the COA comes with a physical handwritten signature. Neither is any actual protection against determined forgers. As an occasional artist and photographer, I wonder if the solution to authenticating and valuing digital art is to sell the copyrights along with only a single digital and/or physical copy of the art, and then delete it. Make it unique to the buyer the same way a sculpture or painting is unique.