Congratulations to the man who, if he is still alive, will be the oldest person on the earth... The birthday boy was born in 1824!
The Mainichi article reads:
According to the Yamaguchi Regional Legal Affairs Bureau, among 17 cities and towns in the prefecture, there are 9,414 people over 100 listed on family registers as alive but without a resident registration showing where they live. The 186-year-old Hofu man is one of them.
Possible reasons for the discrepancies are people moving and not updating their resident registrations, or the entirety of a family perishing in World War II, according to municipal governments.
No, I think the best reason for the discrepancy is that the government is full of a bunch of incompetent idiots.
But there really is a 120-year-old man alive in Japan...
His name is Shigechiyo Izumi of Isen on Tokunoshima. Read about him here.