Ethereum ERC-721 is an open standard that outlines how to create unique non-fungible tokens and NFTs on Ethereum’s blockchain. ERC-721 defines the minimum requirements for these unique tokens to be managed, owned, and traded. Non-Fungible tokens are 100% unique, and each token has static metadata written into the smart contract.
NFT Term
ERC-721
Definition of ERC-721 from the NFTguild.com glossary.

