Food label unique code publishing and circulation traceability method based on block chain main and auxiliary chain technology

Abstract

The invention discloses a food label unique code publishing and circulation traceability method based on a block chain main and auxiliary chain technology. The commodity label unique code informationblock chain technology based on public and private key pairing verification is adopted. Main chain and auxiliary chain information counterfeiting prevention, tampering prevention and replay preventionare achieved, food label unique code network propagation and independent chaining and rapid tracing of single piece of food information can be achieved, and a user comprises a third-party mechanism,manufacturers at all levels, a dealer and a consumer which are connected with the Internet. Server databases of the third-party mechanism, manufacturers and dealers at all levels store food label information block chain account books in server databases, new legal verification data issued by other parties is received in real time, local account books are updated in time, new data blocks are hookedaccording to food transfer conditions, and new block chain data are issued; and a consumer obtains the latest timestamp block chain from a plurality of enterprise servers during code scanning, and calculates and obtains the food traceability information chain by comparing the latest timestamp block chain.

Description

technical field [0001] The invention belongs to the technical field of commodity circulation anti-counterfeiting and traceability, and in particular relates to a food label unique code release and circulation traceability method based on blockchain primary and secondary chain technology. Background technique [0002] Food safety issues are related to the health and life safety of the general public, and counterfeit and shoddy products seriously damage the brand reputation and economic interests of genuine merchants. With the increasingly developed product circulation and the increasingly refined division of labor, it is becoming more and more difficult to trace forward the distribution chain, and it is becoming more and more difficult to identify and curb illegal activities such as counterfeiting and cross-regional sales. Traditional anti-counterfeiting and traceability technologies include anti-counterfeiting marks such as QR codes, barcodes, regulatory codes, and certifica...

AI Technical Summary

Problems solved by technology

[0004] However, the blockchain technology derived from Bitcoin needs to rely on the powerful computing power of a large number of "diggers" to ensure that the correct data chain is the longest chain, and to provide the theoretical longest chain that cannot be forged, resulting in commodity information Operations such as adding blocks into the chain and information traceability verification must have strong computing power, which brings hardware burdens to manufacturers and sellers at all levels, and it is also difficult to realize real-time commodity circulation traceability with consumer handheld devices

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