ERC-721
ERC-721 is an Ethereum token standard that defines a non-fungible token (NFT) interface, enabling the creation of unique, indivisible digital assets on the Ethereum blockchain. It specifies functions for token ownership, transfer, and metadata, allowing each token to have distinct properties and value. This standard is widely used for digital collectibles, art, gaming items, and other applications requiring verifiable uniqueness.
Developers should learn ERC-721 when building decentralized applications (dApps) that require unique digital assets, such as NFT marketplaces, blockchain-based games, or digital identity systems. It provides a standardized, interoperable way to create and manage NFTs, ensuring compatibility with wallets, exchanges, and other Ethereum tools. Use cases include tokenizing real-world assets, creating in-game items, or issuing digital certificates.