ERC-721 definition
Definición
Ethereum standard for non-fungible tokens (NFTs)
ERC-721 ensures uniqueness; OpenSea trades billions in ERC-721 assets, evolving with metadata standards for dynamic NFTs. Key Functions: ownerOf(), transferFrom(), tokenURI(). Extensions: ERC-1155 multi-token. Metadata: JSON off-chain, IPFS pinned.
keywords