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World Chain is EVM-equivalent because it utilizes the OP Stack, a modular framework developed by Optimism, which ensures compatibility with the Ethereum Virtual Machine (EVM). By leveraging the OP Stack, World Chain can execute smart contracts and interact with decentralized applications designed for Ethereum without any modifications. This equivalency enables seamless interoperability with Ethereum’s ecosystem of applications and protocols. The OP Stack’s modularity also allows World Chain to implement scaling solutions and other customizations while maintaining the fundamental EVM equivalence, ensuring a flexible yet consistent environment for developers and users alike.

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Differences between World Chain, OP Mainnet and Ethereum

Though the EVM remains unchanged across OP Stack (Superchain) chains compared to the Ethereum layer 1, there are some configurations of the execution clients that do differ.
Values below were checked on September 22, 2026 and can change. For current OP Stack parameters, read the latest block’s gasLimit and decode its extraData using the block header specification. The Superchain Registry records genesis and fork settings, which may differ from the current configuration.
ParameterWorld ChainOP MainnetEthereum
Block time in seconds2212
Block gas limit280,000,00040,000,000~60,000,000
Block gas target12,727,272 (280,000,000 / 22, rounded down)20,000,000~30,000,000
EIP-1559 elasticity multiplier2222
EIP-1559 denominator1002508
Nominal maximum base fee increase (per block)~21%~0.4%12.5%
Nominal maximum base fee decrease (per block)~1%~0.4%12.5%
Fee changes are subject to integer rounding and the configured minimum base fee. World Chain’s current minimum is 500,000 wei; the base fee cannot decrease below it. For more information check out the OP Stack docs.