A blockchain-based commodity traceability method and system

Abstract

The invention discloses a commodity tracing method and system based on blockchains. The method includes: a plurality of equivalent service nodes form a decentralized service network used for recordinga detailed process of circulation of commodity tracing codes as block data; and production enterprises, and dealers and retailers at all levels are regarded as different categories of user nodes connected to a service platform, tracing code data related thereof is obtained and saved, and related business operations are performed. Each commodity is endowed with a unique commodity tracing code, when the commodity is circulated between the dealers, the tracing code data is circulated between the user nodes of the dealers, the circulation process of the commodity tracing codes is traced, and thetracking of the commodity circulation process is accomplished. The system is used for implementing the method. The method and the system are advantageous in that the principle is simple, the operationis simple, and the problem of commodity tracing can be basically solved.

Description

Technical field [0001] The present invention mainly relates to the technical field of commodity traceability, and specifically refers to a method and system for commodity traceability based on blockchain. Background technique [0002] Commodity traceability began in the food industry. It is an information system that records the detailed circulation process of commodities. When a commodity has quality or safety problems, it can be recalled and disposed of in a timely manner, which is of great significance for maintaining consumer interests and social stability. my country has clear requirements for commodity traceability in the fields of medicines, foods, and agricultural products. [0003] The existing commodity traceability system adopts a centralized system architecture, that is, the establishment of a unique central node in the whole system. In every step of the circulation of each commodity, relevant intermediate links (distributors and retailers at all levels) are required T...

AI Technical Summary

Problems solved by technology

In order to ensure the security of the system, strict registration management and identity authentication must be carried out for all users connected to the central node, which inevitably requires the use of various special encryption / authentication equipment, resulting in increased user costs (need to be equipped with relevant equipment and software), complex operation (registration is required before use, special equipment must be activated, password input, etc.)

The direct consequence of this shortcoming is that in the existing commodity traceability system, a large number of intermediate distributors and retailers are unwilling to join, making the commodity circulation information extremely incomplete, which makes it difficult for the commodity traceability system to play its due role. effect

[0007] 2. Data reliability cannot be guaranteed

[0008] In the existing commodity traceability technical solution, all commodity circulation data are submitted to the central node managed by the system operator, which centralizes and manages all the data, and users cannot participate in data management, so it is impossible to prevent The data is maliciously tampered with by the system operator

Once a problem occurs, even the responsibility of the system operator itself is difficult to reliably clarify, and the responsibility of other relevant parties is even more difficult to credibly define, which can easily lead to disputes

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