Structure and Application of E-commerce Platform System Based on Block Chain

Abstract：With the full improvement of the block chain technology and the continuous maturity of the concept，the block chain has been formally entered into the third stage of a programmable society. That is，the block chain will gradually infiltrate from the virtual world to all aspects of real life，and e- commerce is the best opportunity to connect reality and virtual at the present stage. The characteristics of decentralization，intelligent contract and tamper- resistant can handle such difficulties in the development of e- commerce information as insecurity and transaction unfairness. The authors first apply the technology characteristics and mode concepts of the block chain to the three core modules of the e- business，including payment system， circulation system and credit system，and realize the interconnection and interoperability of information value chain. Second，from the perspective of e-commerce platform users，they optimize the whole application process and operation framework with the help of block chain. While improving the users' service experience，it avoids the information leakage，process redundancy and other situations. Finally，the authors analyze the risks and countermeasures in the future development of e- commerce based on block chain. We should eliminate security holes from the level of technology，find out the new balance point between centralization and decentralization，and promote the development of block chain with such features as short update intervals，large data throughout， and flexible consensus mechanism.

Key words：block chain；decentralization；e-commerce；information value chain；circulation system