The standard of unique tokens

ERC-721 is a standard for representing the ownership of different unique tokens, also known as “non-fungible tokens”. Despite the fact it may look similar to ERC-20, it is more complicated than it.

ERC-721 use

ERC-721 identifies unique tokens, or NFT tokens, over the Ethereum network that have more value and usefulness than other tokens for the same smart contract. ERC-721 tokens are most times even treated as collectables. Such tokens enhance the integrity of the smart contract.