Tobacco anti-counterfeiting and tracing method and system based on block chain

Abstract

The invention discloses a tobacco anti-counterfeiting and tracing method and system based on a block chain, which belongs to the technical field of anti-counterfeiting and tracing. The method includesthe following steps: S1, generating a hash value for each cigarette, generating a first identification code according to the hash value of each cigarette, and printing the first identification code on each cigarette; S2, calculating a first root hash value according to the hash value of each cigarette in a pack of cigarettes, generating a second identification code and printing the second identification code on the package box of the corresponding pack of cigarettes; S3, calculating a second root hash value according to the hash value of each pack of cigarettes in a carton of cigarettes, generating a third identification code and printing the third identification code on the package box of the corresponding carton of cigarettes; S4, calculating a third root hash value according to the hash value of each carton of cigarettes in a box of cigarettes, generating a fourth identification code and printing the fourth identification code on the package box of the corresponding box of cigarettes; and S5, calculating a fourth root hash value according to the hash value of each box of cigarettes in a batch, and writing the hash values of each cigarette, each pack of cigarettes, each carton of cigarettes, each box of cigarettes and each batch into a Merkle tree of a block chain. Thus, each cigarette, each pack of cigarettes, each carton of cigarettes, each box of cigarettes and each batchare managed in a stacked Merkle tree mode, and tobacco anti-counterfeiting and tracing is realized based on the irreversible and tamper-resistant hash values of the block chain.

Description

technical field [0001] The present invention relates to the technical field of anti-counterfeiting and traceability, in particular to a block chain-based tobacco anti-counterfeiting and traceability method and system. Background technique [0002] my country has always been a big tobacco consumption country. With the improvement of people's living standards, tobacco consumption is also increasing. The "2015 China Adult Tobacco Survey Report" report shows that the smoking rate of my country's population has not changed significantly compared with five years ago, which is 27.7%. Among them, the smoking rate was 52.1% for men and 2.7% for women. Due to the increase in the total population, based on the current smoking rate, the number of smokers in China has increased by 15 million compared with five years ago, reaching 316 million. Smokers smoked an average of 15.2 cigarettes a day, an increase of 1 compared to five years ago. In January 2016, the national cigarette sales v...

AI Technical Summary

Problems solved by technology

[0003] For tobacco counterfeiting, tobacco anti-counterfeiting technology has been the key technology of the tobacco industry over the years. Traditional anti-counterfeiting methods include three-dimensional holographic film, fluorescent code anti-counterfeiting, frequency conversion ink anti-counterfeiting, optical variable ink anti-counterfeiting, packaging printing process anti-counterfeiting, tipping paper Decorative anti-counterfeiting, etc.; high-end cigarettes even use multiple anti-counterfeiting technologies; but traditional anti-counterfeiting technologies are costly. For example, Yunyan’s estimated shipment volume in 2016 was 11.8 billion boxes. The cost of making three-dimensional holographic films alone is close to 120 million, which is very high. ; At the same time, most of the manufacturers themselves did not report and publicize such information to the outside world, and smokers did not know it, which made the anti-counterfeiting effect low; in addition, anti-counterfeiting technology mostly stays at the visual level, with high reproducibility, difficult to remember, and even more difficult to identify , so in view of the current status of anti-counterfeiting technology in the tobacco industry, it is necessary to propose a more reliable and efficient anti-counterfeiting and traceability method

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