Journal of Agricultural Big Data ›› 2023, Vol. 5 ›› Issue (3): 69-82.doi: 10.19788/j.issn.2096-6369.230311

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Research on Trusted Management of Blockchain-based Food Safety Knowledge Graph

LIU YuJie1,2(), LIAN XiaoQin1,2, ZHAO ZhiYao1,2, LI Yue1,2, ZHANG Xin1,2,*()   

  1. 1. School of Artificial Intelligence, Beijing Technology and Business University, Beijing 100048, China
    2. Key Laboratory of Internet and Big Data for China Light Industry, Beijing Technology and Business University, Beijing 100048, China
  • Received:2023-08-28 Accepted:2023-09-13 Online:2023-09-26 Published:2023-11-14

Abstract:

In recent years, knowledge graphs have played an important role in the field of food safety. However, there are several issues with food safety knowledge graph information in the whole-life cycle circulation, such as severe data centralization, poor information circulation, easy data tampering, low traceability efficiency, and sharing and co-management difficulty. As an innovative architecture of the new generation of information technology, blockchain offers a new solution for the circulation and management of food safety knowledge graph with its features of decentralization, distributed processing, high privacy, open and transparent data, and difficult data tampering. This paper first analyzes the current situation and critical problems of food safety knowledge graph. Then, it reviews the application status of blockchain in the field of food safety. Based on this, a trustworthy management framework for food safety knowledge graph based on blockchain is constructed. Meanwhile, it designs a multimodal storage mode suitable for food safety knowledge graph, R-TBFT consensus optimization mechanism combined with Raft and TBFT consensus mechanism, and customized smart contracts for food safety knowledge graph. Finally, through the analysis of the feasibility and operation process of the proposed model, it is shown that this model can realize the sharing and interoperability of food safety knowledge graph along the entire chain. It can also ensure the security and reliability of data storage and transmission, providing a reliable source of food information for enterprises, regulatory authorities, and consumers. In summary, this paper provides a feasible solution and valuable reference for the innovative application of new generation information science in the field of food safety.

Key words: knowledge graph, food safety, blockchain, trusted management, smart contract