and Forbes [2] we know "An NFT is a digital asset that represents real-world objects like art, music, in-game items and videos.", therefore certifying and clarifying the ownership of something in real-world is the most capability of NFT.
Only if other party recognize usage of specific NFT as valid or legal ownership.
so why we do not convert a specified amount of e.g. 3.698521 BTC into an NFT asset and store on the same blockchain, that never again could break apart into its original fungible nature and fully assign and belong to an entity (person / AI / organization) in real-world? then no body could steal and sale it without serious consequences but also buyers could feel free when pay for it at KYC level. this is what I call it "Bitwise NFT".
Based on the goal, why don't we just sign address with specific message and let authority or other party know about it?