CRYPTO GLOSSARY

ERC-721

The Ethereum standard most NFTs follow. The contract keeps a list of which address owns each numbered token.

ERC-721 in more detail

On Ethereum most NFTs follow a standard called ERC-721. A contract that follows it keeps a simple list: token number 1 belongs to this address, token number 2 to that one.

FROM LESSON 51 · 4 MIN READWhat an NFT really isAn NFT is a unique token recorded in a smart contract. Learn what the token proves, what you do and do not own when you buy one, and why the picture is not the NFT.Read the lesson

All 128 terms · Checked against the lesson's sources on 10 October 2026.

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