Blockchain-based technology for commerce data management using reputation algorithm with QoS mechanism

Traditional solutions in commerce scenarios rely on core nodes for global data management. This approach often struggles to balance security and user experience. To address these shortcomings and take advantage of the decentralization and privacy protection offered by blockchain technology, we propose a decentralized commerce data management model. This model aims to ensure secure and efficient transactions in complex network and trust environments. Firstly, the drawbacks of the traditional scheme are analyzed, and the technical advantages of blockchain technology to ensure data security are clarified; secondly, the framework and smart contract implementation scheme are proposed for the characteristics of trade scenario; then, a node selection scheme based on reputation and Quality of Service is designed to meet its performance requirements, and the consensus algorithm is optimized. Finally, the security of the platform in the trade transaction process is verified and analyzed, and the simulation results prove that our proposed scheme, which take credit and dynamic group management into account, can better improve user experience while reducing resource consumption, and optimize the overall network latency and throughput performance.