This.

That’s why I build #nauth to do secure document transmittals.

With #nostr, you get authentication using npubs for free; the first two steps just need to be regularized in a protocol, not implementing your own auth scheme.

nostr:note1dsatfv9ma5czxw2td30vdk056vy764scy8nkd92zxwtkpue8qdjsh8xj4g

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