What is the "blockota" file in MIUI?

Some Xiaomi device owners have noticed that after updating their smartphones, a mysterious file called "miui-blockota.zip" appears in the download folder. On the official MIUI forum, there are many

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Kamal sah
Same problem have u any solution
Geeta
Sim not active
Mac11
What you see when you swipe right on the miui homescreen.
Abdullahi Garba
honestly i have to appreciate your effort because this platform is very helpful in solving issue related thank you
Deepak
My SIM not activated please help