I really encourage you to read EIP-721 and EIP-1155, then think a bit more creatively about the use-cases of non fungible, transferrable data, the possession of which is easily cryptographically verifiable.
You said "non fungible, transferrable data, the possession of which is easily cryptographically verifiable", but NFT advocates talk about ownership a lot.
I can possess all the bored ape JPEGs. So can anyone else in the world who can right-click or screenshot or download a .zip of them.
Yeah, but the ones who have their ownership verified on the blockchain are the owners. I’m not sure what the misunderstanding is. I can save any kind of art from the internet, but I obviously don’t own it unless I purchase the rights to it. NFTs are just a distributed way of managing that purchase and transfer.
> Yeah, but the ones who have their ownership verified on the blockchain are the owners.
Not legally, they aren't. I can take someone else's photo, put it up on OpenSea as a NFT, and it'll go through. I didn't own it. You don't own it. The original photographer still holds every bit of legal ownership, regardless of our possession of JPEG copies of it.
I haven't actually read the legal documents of NFT creation sites in detail, but given the general trend of digital content contracts, it is very likely that (even were the NFT itself not a copyright violation in the first place, as sibling comment describes) you are not the legal owner of the copyright in that NFT anyways. What you would instead own is no more rights to that NFT than, say, HN has to the copyrighted content I am writing in this textbox, which is something along the lines of:
> a nonexclusive, worldwide, royalty free, fully paid up, transferable, sublicensable, perpetual, irrevocable license to copy, display, upload, perform, distribute, store, modify and otherwise use your User Content for any Y Combinator-related purpose in any form, medium or technology now known or later developed
> the possession of which is easily cryptographically verifiable
Too bad for NFTs that "possession" is a legal problem, not a technological-one. If a court and government doesn't recognise that cryptographic verification, you're out of luck.