Design And Implementation Of Pork Supply Chain Tracing System Based On Blockchain

With the continuous advancement of China’s poverty alleviation strategy,the quality and safety control of pork product and high-quality development of pork industry have become two important livelihood issues,and reliable information of pork food has become the focus of consumer attention.Based on the idea of the existing traceability system,this paper adds the block chain technology to make it a safe,transparent and reliable traceability platform for consumers to query.The construction of such a traceability system can facilitate the management and supervision of pork safety by relevant departments,it can also improve consumers’ confidence in pork food safety,and effectively promote the transformation and upgrading of the pork industry and the high quality and large-scale development.This paper innovatively uses the alliance chain based on JAVA self-developed to develop the system,and the asymmetric cryptosystem in blockchain technology is used to ensure the security of information in communication and transmission.P2 P network technology realizes the decentralization.In distributed ledger mode and block chain data storage mode,the stored data is immutable,and the data record can traced throughout the whole process,which solves the problems that the information in the existing traceability system is not transparent enough and the data can be tampered with arbitrarily.First of all,this paper introduces the core technologies of the block chain,including consensus algorithm,smart contract,cryptographic algorithm,etc.On this basis,the feasibility analysis and the overall needs analysis of the traceability system are proposed.Combined with the existing business logic of the pork industry supply chain,the design of functional architecture and smart contract are completed in the whole system.Finally,it mainly displays the breeding and growth data,slaughtering data,transportation data and consumption data of pork that are input into the traceability system of pork supply chain,and provides consumers with the traceability and query function,so as to realize the design and implementation of pork supply chain traceability system based on blockchain technology.In this paper,the design of the pork supply chain traceability system based on blockchain can effectively solve the problem of low date security and high degree of data centralization.It can meet the information requirements that it can really trace the source.Moreover,with the promotion of information and chain block technology in-depth application,the pork supply chain traceability system based on blockchain will be more accepted and recognized by the market.