So even though in the case of Blockchain the owner has control over the piece (signature), do you think that the disconnect between "signature" and the fungible digital work is too big or meta and we should rather reconsider how we think of art, scarcity and those old dynamics? In this case will the artist signature and chain of provenance and creator<>collector connection be useless?
The notary can be a public, decentralized and distributed ledger like a Blockchain. The signature and signed copy then can be "scarce" like are signed posters right?