Ideally I'd like a global government to do it, although I don't like the current structure of the UN. I think what I see in the web3 space is possibly a yearning for a global registry, whether for identity of humans or businesses (DAOs), or even a global currency.

So for me, I'd like a global entity that more closely resembles the global nature of the internet, combined with a more globally representative structure.

I think whoever issues passports might be able to take it on. So, basically the post office? I'm not entirely sure to be honest.