Are you asking about Phnom Penh of Chongqing Express Code? Related to vaccination in COVID-19. After vaccination with COVID-19 vaccine, Chongqing Kuaima will have Phnom Penh. For example, if you have two stitches, then after all stitches, it will be a complete square gold frame with a shield on the upper left of the gold frame, which says "complete". If you only took one picture, the golden border is only half, and there will be words below to explain how many pictures you have taken so far. People who don't get vaccinated have no Phnom Penh.
Chongqing Express Code is a digital information service platform based on Chongqing epidemic prevention and health related data and related functions of the national government service platform. In view of the current demand of epidemic prevention and control in COVID-19, the platform collects data from health, public security, industrial information, transportation, civil aviation, railways and other aspects, and provides their own health status related to epidemic prevention for the general public and people entering (returning) Chongqing.