This article introduces the Interwoven stack of Initia, which aims to support a modular blockchain ecosystem, particularly enhancing scalability and sovereignty through Optimistic Rollups. Initia provides an L1 platform that collaborates with multiple Minitias, these application-specific rollups can independently manage execution environments, control transaction ordering, and optimize gas fees. Through the OPHost and OPChild modules, as well as OPinit Bots, seamless interaction between L1 and L2 is achieved, ensuring security, flexibility, and efficient asset transfer.