If the result of code scanning is only a detailed introduction of goods, it does not have anti-counterfeiting function. If the code is scanned for the second time, it is reminded that it is not the first query, and the first query time is xxx, which means that this code has anti-counterfeiting function and can distinguish authenticity.

The anti-counterfeiting label products formulated by the state stipulate that all anti-counterfeiting labels produced by anti-counterfeiting companies must enable enterprises and consumers across the country to effectively identify the labels of anti-counterfeiting products.

Anti-counterfeiting thinks that products should follow the technical requirements and identity uniqueness when leaving the factory: the uniqueness and non-transferability of anti-counterfeiting identification characteristics of anti-counterfeiting technology products.

Barcode: Barcode has been widely used in supermarkets in China. Anti-counterfeiting bar codes can be printed with colorless fluorescent anti-counterfeiting ink, and fluorescent graphic symbols can only be displayed under ultraviolet radiation. A very red fluorescent bar code can be read with a pen. The two-dimensional bar code used on the card has a large information capacity and can store the holder's photos, personal information, passwords, etc.

Extended data:

Anti-counterfeiting label is one of anti-counterfeiting technology products (currently divided into 6 categories according to national standards). Anti-counterfeiting believes that products should follow the eight technical requirements of anti-counterfeiting labels when they leave the factory:

1. Identity uniqueness: the uniqueness and non-transferability of anti-counterfeiting identification features of anti-counterfeiting technology products. For example, digital anti-counterfeiting, so that the anti-counterfeiting logo of goods has an identity code, each anti-counterfeiting logo can only be used once and cannot be transferred.

2. Stability period: the shortest time that the anti-counterfeiting identification features of anti-counterfeiting technology products can be maintained under normal use conditions. Such as fluorescent ink and variable temperature ink, have decay periods.

3. Safety period: the shortest time for the anti-counterfeiting identification features of anti-counterfeiting technology products to be successfully copied under normal use conditions. This is what customers are most concerned about, and manufacturers should propose a commitment period.

4. Anti-counterfeiting strength: the durability and reliability of the functions of distinguishing authenticity and preventing counterfeiting. Anti-counterfeiting strength consists of four elements: the number of anti-counterfeiting identification features, the exclusive number of anti-counterfeiting technology, the difficulty of imitation and the cost of imitation.

5. Applicability: the ability of anti-counterfeiting identification features of anti-counterfeiting technology products to adapt to the use requirements of the subject matter or service object.

6. Identification performance: The anti-counterfeiting identification features of anti-counterfeiting technology products can be correctly identified by senses or machines (instruments) within the required identification time. First-line identification emphasizes the public knowledge of anti-counterfeiting identification features, which can be recognized by senses; Second-line identification emphasizes that simple instruments (such as magnifying glass, laser pen, ultraviolet fluorescence discriminator, etc.) can be used for identification. );

Third-line identification emphasizes the identification by experts through special instruments (such as DNA identification) as the basis of judicial judgment. Double-line identification and three-line identification emphasize the implication of anti-counterfeiting identification characteristics.

7. Use environment requirements: the anti-counterfeiting performance of anti-counterfeiting technology products should meet the requirements of the normal use environment of the subject matter.

8. Technical security and confidentiality: The technology for designing and manufacturing anti-counterfeiting products should be secure and confidential. In addition, the adaptability of economic cost should be considered, that is, the use cost should be reduced as much as possible while meeting the requirements of anti-counterfeiting technology.