Optimism, a layer-2 scaling solution for Ethereum, has announced the Law of Chains, a set of principles that aim to provide a guiding framework for the Superchain, a collective of interoperable chains that share a common vision of open and decentralized blockspace. The Law of Chains defines the minimum viable product (MVP) of the Superchain, as well as the rights and responsibilities of the different participants in the ecosystem, such as users, chain governors, and chain servicers.