[Please enter your passport number.]
[Please enter the city that issued your passport.]
A passport is a Federation-authorized identity document, and theoretically, every Federation citizen should have one.
But a passport generally cannot serve as a proper citizen identity document.
The reason is simple: the passports issued by the various fortress cities of the Federation are completely independent, and most cities are unwilling to share this population data with the Federal Central Government or other cities.
So, the passport of a certain city only has the ability to verify identities within that city.
But does the Federation have a document capable of verifying a person's identity across the entire Federation?
Yes, it does.
It is the Federation Social Security Card.
The Federation Social Security Group was established with the leading support of the Federal Central Government and funded by major conglomerates as a private social insurance group.