I think in most cases with NFTs, "own" is being defined at ownership of the off-chain artwork (or other thing). I think people are being sold the idea that the

I think in most cases with NFTs, "own" is being defined at ownership of the off-chain artwork (or other thing). I think people are being sold the idea that they're buying a certificate that proves they own (in some sense of the word) the artwork, but in reality they're being sold a certificate that proves they own the certificate.