You’ve got your NFT which the holder can then resell as you will. If the artist then sells another certificate claiming it is unique, sue them.
Even if the artist creates millions of tokens, there's probably prestige from having the first to be issued.
But there is no way to create a forgery and duplicate your NFT. The digital provenance is all there on the blockchain. With a physical object anyone could create it later and claim it was an original.
The digital asset itself is not protected and infinitely copied. Everyone who views the asset has made a copy. There is no original.
Physical items cannot be copied perfectly. There is always an original unit that can only be in one location. This fact alone creates intrinsic value that digital items lack.
An original what? Remove everything off-chain from the conversation. All you have left is a small amount text (which itself is *information* !!) in a distributed database. Thats no more original than the particular instance of bootloader code in my desktop computer.
It's not like people are spending hundreds of thousands of dollars on artwork or signed sports memorabilia because of the utlity. You can get a comparable print or a brand new piece of sports gear for far less. There is some grey area on the lower end though, and an NFT has zero utility here.
Anyone can copy the asset. Anyone can also create another NFT to the same asset. So which token is the "real" one? That's the centralized scarcity that's required, which really just added a layer of indirection without solving for anything.
> "spending hundreds of thousands of dollars on artwork or signed sports memorabilia because of the utlity"
Again, this isn't about utility. It's about intrinsic value. Physical goods have a single original object which gives them value that digital items don't.
Really? What if I, the person who bought an NFT, just gave my private key it's tied to, to someone else? What recourse does the artist have then?
Mind you, I'm not a blockchain fan, and I believe that blockchains and cryptocurrencies are the absolute worst way to solve the problem.