The Method And Application Of Agricultural Product Information Traceability Based On Blockchain Technology

As people pay more and more attention to the quality and safety of agricultural products,it is particularly necessary to realize the credible traceability of agricultural product information throughout the chain.However,there are still a series of problems in the agricultural product traceability system,including serious data storage centralization,information asymmetry,and ease of use.Tampering etc.Aiming at the problems and difficulties of the current agricultural product traceability system,this paper adopts the characteristics of block chain information symmetry,decentralized storage,inability to tamper with information and traceability,and proposes a method for traceability of agricultural product information based on block chain technology.The main content of this paper is as follows: First,by consulting a large number of documents and in-depth study of the existing agricultural product traceability system,it analyzes the shortcomings of the traditional agricultural product traceability system based on the Internet of Things technology,and proposes a solution for applying blockchain technology to agricultural product information traceability;Second,analyzed the technical architecture,principles,characteristics and classification of the blockchain,and used a greenhouse agricultural product in Kangping,Liaoning as a reference object,to design the traceability model and traceability process of the agricultural product traceability system;third,to ensure For the authenticity of information on agricultural products on the chain,this article adds a collaborative verification module to the traceability system,and detailed designs for information storage,traceability consensus algorithms,agricultural smart contracts,etc.based on the characteristics of the agricultural product supply chain.The collaborative verificationmodule uses dynamic data storage Technology;improved the PBFT consensus algorithm by introducing a point penalty mechanism to ensure the validity of block data and the security of the blockchain network;fourth,after comparing the characteristics and differences of the three major blockchain technology platforms,this article selects Hyperledger implements an agricultural product traceability system based on blockchain technology,uses Go language to write module interfaces such as collaborative verification,consensus algorithms,smart contracts,and deploys and tests the agricultural product traceability system in the Linux system environment,and finally the agricultural product traceability system The main functions are realized and displayed.The research results of this paper show that it is feasible to apply blockchain technology to the agricultural product traceability system.The agricultural product information traceability system based on blockchain technology solves the information asymmetry and difficulty in the traditional agricultural product traceability system based on the Internet of Things technology.Issues such as sharing,easy tampering,and centralization of storage have truly realized the credible and reliable traceability of the entire chain of agricultural product information.The research content and results of this article have certain theoretical and practical value.