Anything digital can be copied and is instantly fungible with respect to all of its copies, so an NFT is only has the value that the digital signature from the

Anything digital can be copied and is instantly fungible with respect to all of its copies, so an NFT is only has the value that the digital signature from the issuer confers. One example, perhaps, would be an artist putting their music on to a blockchain where the owner of a 'song token' receives royalties for uses of that song. Sticking a boring old digitally signed contract on a blockchain is far from new and interesting though.