nostr:npub187ud0lf5r7psh3l2mp6m3gt7jcwh2a8rgms5d90d2pfe6cy8fcmqaedmq3 

> Løsningen er utviklet gjennom BankID Samarbeidet mellom Finansnæringens Hovedorganisasjon og Sparebankforeningen (nå kjent som Finans Norge).

so, it's about as official as you can get while still being in the private sector. it borders on being a public service, because it's a collective thing offered to the public for free.