You have to be kidding.
Here is one of thousands of articles on the subject. I would think with you being from china you would know that https://www.reuters.com/article/world/china-to-bar-people-with-bad-social-credit-from-planes-trains-idUSKCN1GS10Q/
What the heck here is two
https://www.cbsnews.com/news/china-social-credit-system-surveillance-cameras/
Three for good measure since you really don’t want a source
https://www.wired.com/story/china-social-credit-system-explained/