Method for generating and identifying anti-counterfeit marks formed by dot matrix and tax control code

Abstract

The invention provides an anti-counterfeiting mark formed by dot matrixes and a tax-control code. The anti-counterfeiting mark is formed by a plurality of sets of dot matrix patterns and the tax-control code. The dot matrix patterns are distributed on the outer sides of the tax-control code. Each dot matrix pattern is in a designated shape and cannot be distinguished through naked eyes. The effective area of each dot matrix pattern is larger than or equal to 3*3 square millimeters, and each dot matrix pattern is formed by arraying at least one set of information points with the diameter ranging from 30 micrometers to 40 micrometers. A generation and identification method of the anti-counterfeiting mark includes the first step of inputting invoice information of an invoice to be issued into a tax control system, the second step of allowing the tax control system to generate the tax-control code, the third step of extracting a dominant figure character string of invoice class codes in the tax control system and enabling the dominant figure character string to be associated with the dot matrix patterns, the fourth step of printing the composite anti-counterfeiting mark on the invoice and recording the anti-counterfeiting mark in a platform database of the tax control system, and the fifth step of distinguishing the invoice printed with the anti-counterfeiting mark and feeding back the authenticity and the content information of the invoice according to the distinguishing result. According to the anti-counterfeiting mark, the tax-control code and the dot matrix patterns on the invoice are combined to form the composite anti-counterfeiting mark, so the antifalsification and reliability of the anti-counterfeiting mark are higher.

Description

technical field [0001] The invention relates to an anti-counterfeiting mark, in particular to a method for generating and identifying the anti-counterfeiting mark formed by a dot matrix and a tax control code. Background technique [0002] The full name of tax control code can be called tax control anti-counterfeiting code. It is the only anti-counterfeit code composed of numbers and letters generated by the tax control program based on the tax control machine number, billing date, billing amount, project information and other information. For example, the 84-bit ciphertext in the tax control code area of ​​value-added tax includes seven aspects, including invoice code, invoice number, invoice date, buyer and seller taxpayer identification number, amount, tax rate, and tax amount. Tax control code, through invoice scanning and authentication, decrypts the 84-digit tax control code and restores it to the invoice code, invoice number, invoice date, taxpayer identification num...

AI Technical Summary

Problems solved by technology

[0003] However, since the tax control code can be easily copied or duplicated, the authenticity of the item can still be known when the copied or copied tax control code is identified. Therefore, the information stored in the tax control code is not safe

In addition, because the coding rules of the tax control code are relatively simple, it is also very easy to be cracked.

Once the coding rules of the tax control code printed on the product are cracked by others, it will not be able to achieve its effective effect, and it will be difficult to effectively crack down on counterfeit and shoddy goods

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