I can already do that with receipts, so it doesn't really solve anything for this purpose. Maybe it would help in scenarios where receipts don't make as much s

I can already do that with receipts, so it doesn't really solve anything for this purpose. Maybe it would help in scenarios where receipts don't make as much sense (international online transactions perhaps?), but all parties involved still have to agree that the NFT means something. The only way I could see NFTs being useful for proof of ownership is if the specific society you're part of has enforcement or regulation that recognizes them as legal contracts of ownership. Unlike cryptocurrency, they don't really provide that until you imbue them with it through a trust mechanism outside of the token itself.