Is the idea that Nostr is used strictly for some functionality such as cross device login, or that someone might actually tie their public Nostr identity to the same keys they use for their wallet for pseudonymous financial collaboration?
I think there's an enormous opportunity in an "open network" of cosigners. Co-signers-as-a-service can offer their services and users can decide which cosigners to subscribe to based on security, speed, trust, and other criteria.
Unchained recently launched a "enterprise custody network" where they choose the cosigners. The Smart Vaults network can achieve similar outcomes without the counterparty in the middle deciding who can and can't serve as a cosigner.
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