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Optimism

OP
Spot$0.103444updated June 20, 2026

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Optimism FAQ

What is Optimism?
Optimism is an optimistic rollup L2 on Ethereum, launched mainnet 2021 by OP Labs. The broader project is the Optimism Collective — a bicameral governance with the Token House (OP holders) and Citizens' House (soulbound voting for Retroactive Public Goods Funding).
What is the OP Stack?
Open-source codebase for launching optimistic rollups. Base (Coinbase), World Chain, Zora, Mode, and dozens of others are OP Stack chains. Together they form the "Superchain" — shared sequencing infrastructure, bridging, and a common governance layer. It is the dominant rollup framework by chain count.
What is RetroPGF?
Retroactive Public Goods Funding pays teams for work that has already benefited the Optimism ecosystem — the opposite direction of grants. Rounds have dispensed tens of millions of OP tokens to infrastructure, tooling, education, and developer experience. It is one of the most ambitious public-goods-funding experiments in crypto.
What does OP token do?
Governance only — votes on Token House proposals, delegates to Citizens' House for RetroPGF. Like ARB, no staking, no slashing, no sequencer role. Security inherits from Ethereum via the optimistic fraud-proof window.

This is general information, not investment advice. Markets are volatile and rules vary by jurisdiction — consult a qualified advisor before making decisions.