Abstract: Food safety was a growing concern for the community, and it was urgent that food safety issues were effectively identified and traced for accountability. This paper selected organic rice as the target of food safety traceability analyzed the whole process of the organic rice supply chain, and sorted out and extracted the key information of each link. Hyperledger Fabric was chosen as the blockchain technology platform, proposed a framework of organic rice supply chain traceability based on consortium chain and smart contracts, customized the design of data management model and smart contracts of each circulation link, and the organic rice supply chain traceability prototype system was developed. The results showed that the constructed system could address the secure storage of private data and achieve traceability and share ability in the supply chain.

Key words: food safety, organic rice, traceability, blockchain, smart contract, Hyperledger Fabric

摘要： 食品安全问题越来越受到社会的关注，有效地发现食品安全问题并进行追溯问责，刻不容缓。选取有机大米作为食品安全追溯的对象，分析有机大米供应链的全过程，梳理并提炼各环节的关键信息；选择超级账本Hyperledger Fabric作为区块链技术平台，提出一个基于联盟链和智能合约的有机大米供应链追溯框架，定制化设计数据管理模式和各个流通环节的智能合约，研发有机大米供应链追溯原型系统。结果表明，构建的系统能够解决隐私数据安全存储，实现供应链的可追溯和可共享。

关键词: 食品安全, 有机大米, 溯源, 区块链, 智能合约, 超级账本