SimpleChain is the public blockchain that has the structure of one main-chain with several sub-chain. According to its multi-layer distributed value network, SimpleChain can support the deployment and extension of public blockchain in different business scenarios, including distributed computing, judicial digitization, digital auctions, real estate, entertainment and games, transaction settlement and many other scenarios. Sub-chain can choose their own consensus algorithm according to their own business needs. SimpleChain can support cross-chain transactions as well as satisfy the performance of thousands of TPS. SimpleChain's version is to build a new digital economic ecosystem.