Here you go: https://www.reddit.com/r/ProtonVPN/comments/8ww4h2/protonvpn...

Here's the Handelsregisterauszug for Proton, which shows ownership: https://www.zefix.admin.ch/en/search/entity/list/firm/118926...

Proton's peering relationships: https://bgp.tools/as/62371#asinfo

I'm not sure what exactly you're looking for.

> Here's the Handelsregisterauszug for Proton, which shows ownership

It doesn‘t. It’s a joint-stock corporation and while the shareholders are registered, the register is not public.

Proton discloses shareholder information here: https://proton.me/support/who-owns-protonmail

But I guess they could be lying.

Them providing information isn't the same as publicly verifiable information.