What is ERC20?What is token?
ERC20 tokens are smart contracts that run on the Ethereum blockchain.
Tokens represent an asset or utility and exist on top of a blockchain. They are tradeable goods and can represent coins, loyalty points, in-game assets, and so on. They can even be redeemable for a service an issuer will provide at a later date. Tokens can be issued on blockchains like Ethereum and Waves. The most widely used token standard is Ethereums ERC20