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The Application Research Of Data Provenance Based On Blockchain

Posted on:2020-05-16Degree:MasterType:Thesis
Country:ChinaCandidate:W WuFull Text:PDF
GTID:2518306452968719Subject:Computer technology
Abstract/Summary:PDF Full Text Request
With the rapid development of the social economy and the continuous improvement of people's quality of life,in the context of promoting "Internet +" modern agriculture,the safety of agricultural products has aroused widespread concern in society,which will further promote the research of reliable and trustworthy agricultural product traceability technology.This paper believes that the existing agricultural product quality traceability system faces the following problems: Supply chain has many enterpriseentities and links.The centralized system will face the problem of high cost and difficult information integration.Centralized storage have the risk of omitting and tampering with data,making it difficult to establish trust relationships among all parties in the industry,thus losing the meaning of traceability.Using its unique linked storage structure,decentralization,and trust-free features,the blockchain provides a way to create a consensus network without trusting other nodes,providing an excellent solution to our appeal problem.This paper designs a traceability scheme based on blockchain technology and implements system prototype development for specific scenarios.main tasks as follows:(1)Feasibility analysis of integration of blockchain technology and traditional traceability systemBased on the technical principle,the paper investigates related technologies,introduces and compares the common blockchain platforms,discusses the advantages and disadvantages of existing traceability schemes,and systematically summarizes the practicality and necessity of integrating between the blockchain technology and traditional traceability systems.(2)Design traceability anti-counterfeiting scheme based on blockchain technologyAccording to the functional modules provided by Ethereum,this paper designs the chain-based data storage model,the information interaction behavior between the chain and outside the chain,and the traceability strategy of traceability anti-counterfeiting contracts.Combining the traditional traceability system with the blockchain traceability scheme,based on the smart contract programming,a set of full-course visualization traceability system is designed.Non-tamperable traceability data promote the anti-counterfeiting function of products.(3)Implementation and testing of prototype systemRelying on the existing farm,aiming at the We Chat e-commerce mini program sales scene for two specific products of Camellia sinensis and Niuzhangzhi,our realized the development of the system prototype and conducted actual test.The system covers the whole supply chain of agricultural planting,production,circulation and sales.Based on the Internet of Things equipment,it realizes the functions of full visual traceability and product anti-counterfeiting.System successfully solves the problem of data dispersion and security of the traditional centralized traceability system,and provides an effective technical guarantee for consumers to trust the traceability data.In the future,we will improve and add more value-added services on the basis of this system,optimize business logic,and effectively transplant to other products and industries.
Keywords/Search Tags:Blockchain, Traceability, Anti-counterfeiting, smart contract, Not tampering
PDF Full Text Request
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