Optimism is a Layer 2 scaling solution for Ethereum that uses optimistic rollups to increase transaction throughput and reduce fees while maintaining Ethereum's security.
Description: Optimism is a Layer 2 (L2) scaling protocol for Ethereum, designed to improve the network's scalability by processing transactions off-chain and submitting batched data to Ethereum's mainnet. It utilizes optimistic rollups, which assume transactions are valid by default and only run fraud proofs in case of disputes. This approach significantly reduces gas costs and increases transaction speed, making Ethereum more accessible for decentralized applications (dApps) and users. Launched in December 2021, Optimism has grown to host a vibrant ecosystem of DeFi, NFTs, and gaming projects. Its native token, OP, is used for governance and incentivizing network participants. Optimism aims to create a sustainable and scalable infrastructure for the future of decentralized finance and Web3.