Product circulation identification method combined with block chain technology

Abstract

The invention provides a product circulation identification method combined with a block chain technology. Based on a product flow process, the electronic data is generated in each link; signing is performed to obtain the electronic tag; and the electronic data and the electronic tag are combined into a record file, a previous link nested file is embedded into the record file and signed again to obtain a current link nested file, the current link nested file is submitted to a server, and key data in the current link nested file is written into the NFC tag. The method can effectively help governments, enterprises, logistics and other parties to provide complete data traceability, provide simple and verifiable evidences for auditing, production problem investigation and the like, help the parties to clarify responsibility boundaries and establish trust relationships among the parties; the manual risk event tracing efficiency is greatly improved; and the requirements of services (such asa supply chain) needing data anti-counterfeiting traceability are met.

Description

technical field [0001] The invention relates to a product circulation identification method combined with block chain technology. Background technique [0002] The basic model and technology of the Industrial Internet rely on the Digital Twin. Although this concept originated in the military field, it was quickly recognized by leading industrial companies and invested a lot of resources in research. Digital twins are sometimes used to refer to the completion of a digital model of a factory building and production line before construction. In this way, the factory is simulated and simulated in the virtual cyberspace, and the real parameters are passed to the actual factory construction. After the workshop and production line are completed, they continue to exchange information in daily operation and maintenance. [0003] In the contemporary information technology facilities are being popularized at a rapid speed, while the digital age brings various conveniences to users, e...

AI Technical Summary

Problems solved by technology

However, if the existing blockchain technology is used to prove the data authenticity of the production or sales process of the product, there is a problem that the verifier can only verify the block of the node where it is located, for example, the product completes production-warehousing-sales After this process, producers or sellers can verify their own production data or sales data, but cannot verify the complete production-warehousing-sales-consumption data. Today, when the importance of data is becoming more and more important, this method can only put The situation of controlling local data cannot meet the demand