What is ERC-721 Tokenization Standard?

ERC-721 is a technical standard for the implementation of non-fungible tokens (NFTs) on the Ethereum blockchain which outlines and provides rules that all NFTs must follow. NFTs that adhere to the ERC-721 standard are interoperable with each other and the wider Ethereum ecosystem. The ERC-721 standard produces provably rare assets, and is widely used for digital collectibles, games, art, and luxury items.