Ethereum Request for Comments (ERC)

Overview

ERC proposals allow developers to agree on common application behavior without changing Ethereum’s core consensus rules. A standard can define functions, events, data formats, authorization, or expected interactions. Interoperability emerges when contracts and clients implement the specification consistently. Wallets can display any compliant ERC-20 balance, and marketplaces can transfer ERC-721 tokens through shared interfaces. A proposal can evolve through draft, review, and final states. Some ERCs become widely used before final status, while others remain experimental. Finalization does not force every application or EVM chain to support the standard.

Implementations can add extra behavior. An ERC-20 token can charge fees or freeze addresses while exposing the standard functions. An ERC-721 collection can retain mint and metadata controls. Compliance with an interface is not a security audit. Developers should read the complete canonical standard, including required events, return behavior, and security considerations. Testing against common libraries and edge cases is essential.

The term ERC is sometimes used informally for a token type, but it properly refers to the standard document. The actual asset is a deployed contract on a specific network with its own address and code. ERCs improve composability while leaving issuer, contract, governance, and economic risk to individual implementations. Asset-support decisions should reference both the ERC specification and the deployed implementation. Claiming ERC compliance based on a project website is insufficient. Automated conformance tests, contract-code review, and transaction simulation reveal deviations that can affect custody, payments, and marketplace behavior. Ethereum Request for Comments (ERC) describes blockchain network, protocol, client, or execution infrastructure. Ethereum Request for Comments (ERC) should be evaluated with this point in mind: Its behavior is determined by the active specification and software implementations, not by a ticker or exchange listing. Ethereum Request for Comments (ERC) should be evaluated with this point in mind: Transactions move through construction, authorization, propagation, validation, execution, inclusion, and finality under network-specific rules.