Does it make sense to scan the QR code to distinguish authenticity?

1, scanning the QR code to distinguish authenticity is meaningless;

2. The barcode is just a string of characters, which can be copied and is not anti-counterfeiting;

3. QR code is a very popular coding method on mobile devices in recent years. Compared with the traditional bar code, it can store more information and represent more data types.

Extended data:

QR code introduction:

Bar codes composed of multiple lines can store a large amount of data without connecting to a database, and can be used in hospitals, driver's licenses, material management and cargo transportation. When the bar code is damaged to a certain extent, error correction can make the bar code decode the QR code correctly. It is a multi-line, continuous and variable-length symbol with a large amount of data.

In coding, the concepts of "0" and "1" bit streams, which constitute the internal logic foundation of the computer, are skillfully used, and several geometric shapes corresponding to binary are used to represent the numerical information of characters, which can be automatically read by image input equipment or photoelectric scanning equipment to realize automatic information processing.

Baidu encyclopedia-QR code