Optimism

Optimism is a Layer 2 scaling solution for the Ethereum blockchain, designed to enhance transaction throughput and reduce costs by utilizing Optimistic Rollup technology. This approach allows multiple transactions to be bundled and processed off-chain, with the results recorded on the Ethereum mainnet, thereby maintaining security while improving efficiency. Founded in 2019 by Jinglan Wang, Kevin Ho, and Karl Floersch, Optimism has developed the OP Stack, a modular framework that enables developers to launch their own blockchains or deploy applications on OP Mainnet. This infrastructure supports a wide range of decentralized applications, including financial services, exchanges, and payment platforms. The governance of the Optimism ecosystem is managed by the Optimism Collective, which comprises two main entities: the Token House and the Citizens' House. The Token House, established through the distribution of the OP governance token, allows holders to vote on protocol upgrades and project incentives. The Citizens' House focuses on distributing retroactive public goods funding, with membership conferred through non-transferable NFTs. As of March 2026, Optimism's OP Labs announced a 20% reduction in staff to streamline operations and focus on core objectives. Overall, Optimism plays a significant role in the Ethereum ecosystem by providing scalable solutions that enhance the performance and accessibility of decentralized applications.