You want someone's personal number (americans, think social security number) - call the tax authority and ask for it. While at it, ask how much their declared income is and where they live.
All public information. And our society is most definitely a fairy tale utopia compared to the US.
trxxruraxvr@lemmy.world 5 hours ago
I’m going to assume that that personal number is not used for identification then. But the information you name are not really relevant for the kind at stalking that OP describes. It’s not like the are no stalkers in Sweden.