An ERC-20 token is a standard for creating and issuing smart contract-based tokens on the Ethereum blockchain. ERC stands for Ethereum Request for Comments, and 20 is the unique proposal ID that defines this standard.

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An ERC-20 token is a standard for creating and issuing smart contract-based tokens on the Ethereum blockchain. ERC stands for Ethereum Request for Comments, and 20 is the unique proposal ID that defines this standard.