The other day I was thinking about badges and the use case of “NFTs” helping support artists.

Artist puts something up for sale, buyer pays, and then they both sign the badge (art) as a receipt. That way if you want to show off that you supported the artist you have the badge (art + sig) but there’s no need to store any of that on chain, because at the end of the day “NFTs” are just transferable receipts. Do they really need to be transferable?