I think they're clearly useful for tracking ownership of genuinely-unique physical entities - I could sell farming rights to a bit of land or sell my car withou

I think they're clearly useful for tracking ownership of genuinely-unique physical entities - I could sell farming rights to a bit of land or sell my car without the state DMV or a county government having to coordinate the transaction. But I don't understand the application to digital art. I can watch a movie or read a book without owning the movie/book's NFT, just as I can what a movie or read a book for which there exists no NFT. So it seems clear that NFTs cannot function as a DRM mechanism.