【摘要】 针对近年来农产品供应链情景下参与方互信难、信息不对称、产品质量和安全问题追责难等问题,提出一种基于区块链的农产品供应链追溯系统。首先对系统的框架模型进行了研究和设计,对Hyperledger Sawtooth的应用进行了进一步探索,然后设计了契合农产品供应链追溯场景的用户角色、交易模型、数据结构和寻址方案等,同时引入了GS1标准编码体系对农产品对象进行了标准化,利用"追"与"溯"的算法实现追溯链的构建。运行测试结果表明,本系统能够稳定运行并构建农产品追溯链,可满足农产品供应链的追溯需求。更多还原

【Abstract】 In view of the difficulties in mutual trust between participants, information asymmetry, and the blame for product quality and safety issues in the context of agricultural product supply chain in recent years, a traceability system of agricultural product supply chain based on block chain was proposed. This paper researches and designs the frame model of the system, makes a useful exploration of Hyperledger Sawtooth.The user role, transaction model, data structure and addressing scheme are designed to fit the traceability scenario of agricultural supply chain. At the same time, the GS1 standard coding system is introduced to standardize the objects of agricultural products. Finally, the algorithm of Track and Trace is used to construct the tracing chain. The test results show that the system can run stably and construct the traceability chain of agricultural products, which can meet the traceability requirements of agricultural products supply chain.更多还原