A Non-Fungible Token (NFT) is a unique, digital token which is managed on the blockchain. NFTs offer myriad options for creating and trading digital assets — such as original artwork and blockchain-integrated collectible game items. They act as a non-duplicable digital certificate of ownership for any assigned digital asset.
NFTs are useful for proving the scarcity and provenance of rare assets, both digital and real-world. Once the code is written, it is then minted, or permanently published, into a token. Non-fungible tokens are mainly built on Ethereum using the ERC-721 token standard, which the ZORA protocol extends.