The ways to check the authenticity of the red square seal include observing the packaging, reading pictures and texts, etc.

1. Observe the packaging: There are two rows of laser codes on the upper and lower lines of 16-digit numbers and letters on the genuine cigarette carton. The first 5 digits of the upper code segment indicate the time of sales and shipment, 70218, which means 2017. On February 18, 2018, the downward code segment was consistent with the license number held by the cigarette retail merchant. The position of the barcode is not facing the end and diagonally upward to the right. The barcode is inconsistent with the license number held by the cigarette retailer. They are both illegal and counterfeit cigarettes.

2. Look at the pictures and text: The trademarks and text of genuine cigarettes in strips and boxes are of the same color, the text is clear, the pattern is complete, the ink and gold powder are not removed, and the concave and convex feeling is obvious. The printing quality of counterfeit cigarettes is poor, the fonts are blurred, the colors are dark, and there are misprints and overprints.