Optimism

Optimism is an EVM‑equivalent Optimistic Rollup built with the OP Stack, prioritizing simple developer workflows and Ethereum‑grade security. Contracts and clients behave as on Ethereum; gas dynamics follow familiar EIP‑1559 patterns through standard libraries. Design user flows with the L1 challenge period in mind for withdrawals and any cross‑domain guarantees. Many L3s and app‑chains compose on the OP Stack, so Optimism is often a strong anchor for multi‑rollup strategies.

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