ERC-20 vs Fungible

A technical standard for fungible tokens on the Ethereum blockchain that defines a common set of rules enabling tokens to interact predictably across wallets, exchanges, and decentralized applications, making ERC-20 the dominant token standard in cryptocurrency.

A property of assets where individual units are identical, interchangeable, and mutually substitutable, allowing any unit to be replaced by another unit of equal value without loss of function or worth.