It’s a problem, I agree, but because the “authenticity information” can be expressed somewhat succinctly (it’s just a smart contract address), the trust element

It’s a problem, I agree, but because the “authenticity information” can be expressed somewhat succinctly (it’s just a smart contract address), the trust element can be decentralized. Artist might post it on their Twitter, Instagram and website — if they all agree, and you as a buyer trust that the author is actually managing their Instagram, Twitter and website — then there might be enough to create real world - digital world trust bridge. This is particularly easy if an artist is working primarily online and their digital identity already is the main contributor to their fame.