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Optimism is an open-source Layer 2 blockchain scaling solution built to enhance Ethereum's throughput and reduce transaction costs while maintaining Ethereum-grade security. It achieves this by leveraging optimistic rollup technology, which processes transactions off-chain and submits compressed data to Ethereum's mainnet. This approach allows developers and enterprises to launch scalable, customizable Layer 2 chains and decentralized applications (dapps) with significantly faster and cheaper transactions compared to Ethereum Layer 1.

The core of Optimism is the OP Stack, a transparent and forkable modular framework that anyone can use, adapt, and contribute to. The OP Stack enables chain operators to build their own Layer 2 chains with shared upgrades and open-source innovation, fostering a collaborative ecosystem. Optimism is production-ready and trusted by major projects such as Coinbase's Base, Uniswap, and Worldcoin, securing tens of billions in assets. It also plans to introduce interoperability features that will allow seamless connection between chains and apps within the Superchain, unlocking shared users, liquidity, and tooling from day one.

Developers can get started by deploying apps or launching their own chains using Optimism's comprehensive documentation and developer tools. The platform supports Ethereum-compatible smart contracts and integrates with popular DeFi protocols like Aave, Velodrome, and Morpho. Optimism also provides bridges for asset transfers between Ethereum and Layer 2, governance tools, and a grants program to support ecosystem growth. Its open-source nature and active community make it a flexible and secure choice for teams looking to scale Ethereum applications efficiently.