There isn’t actually an Ethereum standard called ERC-72 you’re most likely referring to ERC-721, which is the official standard for non-fungible tokens (NFTs) on Ethereum. ERC-721 defines how unique digital assets are created, owned, and transferred on-chain, making it the foundation for NFT projects like digital art, gaming items, domain names, and collectibles.
Unlike ERC-20 tokens, which are interchangeable and identical, ERC-721 tokens each have their own unique ID and metadata, allowing individual ownership and rarity. So if the context is NFTs or unique digital assets, the correct term you’re looking for is ERC-721.