Family Register
Census
noun
こせき
功績 (こうせき) Achievement, Accomplishment
鉱石 (こうせき) Ore, Mineral
戸籍 (こせき) Family Register, Census
入籍 (にゅうせき) Entry In Family Register
The Japanese Family Register 戸籍 こせき is quite the Achievement 功績 こうせき