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Optimism (OP) is a prominent Layer 2 scaling solution designed to significantly enhance the throughput and reduce transaction fees on the Ethereum blockchain. It leverages Optimistic Rollup technology, a core component of its architecture, to bundle multiple off-chain transactions into a single transaction that is then submitted to the Ethereum mainnet. This approach inherits the robust cryptographic security of Ethereum while enabling faster and cheaper operations for decentralized applications (dApps). The OP Stack, its standardized, shared, and open-source development stack, aims to create a "Superchain" of interoperable Layer 2 solutions, promoting a cohesive and scalable Web3 infrastructure.
The native digital asset, OP, primarily functions as a governance token within the Optimism Collective, a two-tiered governance system comprising the Token House (OP token holders) and the Citizens' House. OP holders can participate in protocol upgrades, treasury allocations, and direction-setting for the ecosystem, including initiatives like Retroactive Public Goods Funding (RetroPGF). This governance mechanism is crucial for the decentralized network's evolution. Optimism's EVM equivalence ensures that developers can easily migrate existing Ethereum smart contracts and dApps, fostering a vibrant ecosystem of DeFi applications and other on-chain activities seeking efficient execution without sacrificing Ethereum's foundational security and decentralization.