The Superchain is a network of chains, each with its own sovereignty, yet all united by the Optimism Governance.
Optimism is a Collective of companies, communities, and citizens working together to create an internet that benefits all, and is owned by all.
Optimism started as a single L2 chain, OP Mainnet, with a goal to scale Ethereum's technology and values. Over time, it has evolved to become home of the Superchain, building a unified network of blockchains to support internet-level activity, powered by the open source OP Stack.