The address of the health code has changed, and authoritative experts responded that this is due to system failure. The person in charge of the development team said that the residential address in the health code information declaration did not affect the health code, and the fault was quickly fixed.
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.