The DFC blockchain underlying system is a public chain platform with a multi chain (parallel public chain) architecture. Multiple parallel public chains can be expanded on the DFC blockchain, and each parallel public chain can independently develop DAPP, build a diversified application ecosystem, and achieve cross chain exchange functions between multiple chains. The parallel public chain has a wide range of applications, including DEFI, DAO, NFT, storage, privacy, Oracle machine, games, transfer bridges, smart contracts, infrastructure network platforms, wallets, and cross chain identity protocols, forming a complete ecological application.DFC is an unrestricted public chain, which is the technological foundation of decentralized distributed commercial applications. In the future, there will definitely be a multi chain coexistence blockchain era. DFC is a segmented blockchain, which means it connects multiple chains in a network, allows them to process transactions in parallel, exchange data between chains, and provide security guarantees. Due to DFC's unique heterogeneous sharding model, Each chain in the network can be optimized for specific scenarios, rather than being forced to adapt to a one size fits all model, thus achieving applications in different industries and businesses. Because different businesses have different business processes and incentive models. The Internet solves information flow, blockchain solves value flow, and DFC can solve different business application needs through parallel chain technology!DFC will create a public chain alliance to provide basic services for each parallel public chain, while DFC is the necessary fuel for all transactions, thus achieving a commercial structure where multiple chains coexist. The DFC public chain will become an infrastructure that covers a wide range of application ecosystems. The development tool for promoting and applying future blockchain technology can quickly customize industry application public chains through DFC's Substrate. Solve public chain development for commercial applications....