The ERC20 Token Standard is a set of 6 functions and 2 events that need to be included (in a specific agreed upon language and format) in a smart token contract in order to enable interoperability across multiple interfaces and distributed applications (dapps). The 6 functions relate to (1) how tokens can be transferred (either by its owner or on behalf of its owner) and (2) how to access data about the token (name, symbol, total supply, and account balance). The 2 events are transfers and approvals, and how they need to be formatted.

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