Superchain (OP Stack)

The Superchain is Optimism's plan to treat many rollups as parts of one system. Chains such as OP Mainnet, Base, Unichain, Ink, World Chain and Soneium run the open-source OP Stack and agree to a common set of rules, sometimes called the Law of Chains, with shared upgrades and a standard bridge design. Member chains contribute a share of sequencer revenue to the Optimism Collective in return.

The pitch is that users and developers should see one ecosystem rather than dozens of isolated L2s. Shared standards make it easier for wallets, bridges and apps to support every member, and native interoperability between Superchain chains, letting tokens and messages move without third-party bridges, is a long-running roadmap goal that has been rolled out in phases.

Membership does not mean identical security or governance. Each chain may have its own operator, sequencer and upgrade keys, and some decisions remain with the companies that run them. Revenue-sharing terms, the balance of power between large members and the Collective, and how far interoperability has actually shipped are recurring points of debate.