The health code status will be updated in real time according to the system judgment of relevant departments. So screenshot verification is not supported. Health code is a dynamic code, not a static code, which is based on real-time calculation and comparison of personal online information and background data. The states of "green, orange and red" are all dynamic, so neither screen capture nor printing can guarantee real-time dynamic results. Please use your mobile phone to illuminate the "code" of travel.
As a special period of digital dynamic health certification, HealthCode, through its current large-scale use, is an exploration and practical innovation for the large-scale application of electronic documents instead of paper documents, and also a vivid promotion of big data technology.