Users need to prepare their name, ID number, mobile phone number filled in when registering, screenshot of current QR code page, and photos taken with their own documents (if children don't have ID cards, hold their own household registration page) (photos can clearly see their faces and certificate information). Contact customer service and delete it within 1-3 working days after customer service review.
The "health code" is based on real data and can be generated by citizens or people who have returned to work through their own online declaration and background audit. As an individual entering and leaving electronic certificate locally, the QR code can be declared once, which is universal in the whole city.