ERC-721 Token
ERC-721 is Ethereum's standard for non-fungible tokens, where each token ID represents a unique asset.
An ERC-721 token is a non-fungible token (NFT) standard for Ethereum and EVM-compatible networks. Each token ID is distinct, so ownership of token #1 is not the same as ownership of token #2.
ERC-721 defines functions such as ownerOf(), balanceOf(), safeTransferFrom(), approve(), and setApprovalForAll(). These functions let wallets, marketplaces, and apps transfer and display NFTs consistently.
ERC-721 commonly stores ownership on-chain while metadata and media are referenced by a URI. If metadata is stored on centralized servers, the token may remain transferable even if the image or description disappears.
Related terms
2 linkedExplore connected entries beyond the alphabetical index.
Ethereum Virtual Machine (EVM)
→The EVM is the deterministic runtime that executes smart contract bytecode on Ethereum and EVM-compatible networks.
Ethereum (ETH)
→Ethereum is a proof-of-stake smart contract blockchain; ETH is its native asset used for gas, staking, and settlement.
All terms and definitions may update as the Cryptionary improves.
