ERC-721

ERC-721

ERC-721 is a token standard proposed in 2017 that is written in Solidity on the Ethereum blockchain. Using a token standard like ERC-721 makes coding easier, more predictable, and reusable. ERC-721 is the leading standard for creating unique non-fungible tokens for digital collectibles. This token standard provides a mapping of unique identifiers to addresses, allowing the owner of these IDs to be verified.