Research On Online Authentication Of Products Based On Block Chain Technology

In recent years,fake and inferior products have been repeatedly banned but still flooded in various industries and fields.Based on this situation,it is very important for consumers to verify the authenticity of products.The traditional verification method is to identify the authenticity of the product by the user through the online verification interface provided by the merchant.However,the rights of the central node of this validation mode are too large.If the server in the verification system falls,the past transaction history can be easily altered,and it is difficult to guarantee the interests of regular businesses and the rights and interests of consumers.In order to make people more secure through the virtual environment to identify the authenticity of products,to meet the demand for new things.With the introduction of the block chain verification system,the account history transaction information is maintained by each node of the participating network,which can achieve the effect of decentralization.Block chains can add timestamp characteristics to each block of history,combined with cryptographic knowledge,making historical transaction information difficult to modify.From the point of view of block chain technology,this paper applies block chain technology to the online verification process of product authenticity.Use the feature that the history book of block chain is not easy to be modified,prevent the product authenticity verification information to destroy.The main research contents and work are as follows:(1)This paper designs an online authentication system for product authenticity(OVSPA)based on block chain technology,and analyzes the production,supervision,transportation,and sales of products.This paper designs a set of product business processing process which conforms to the traditional business model and is suitable for the block chain technology,so as to achieve the chain storage of product business information in each link,and ensure the immutability of product information.(2)On the basis of the system design work,Hyperledger Fabric is used as a block chain network platform to implement the online verification system of product authenticity based on block chain technology,and the intelligent contract mounted on the block chain is called through the visual interface of the system design.Functional testing is carried out to verify the feasibility of online verification of product authenticity based on block chain technology.