This is amazing work.
I would however like to learn more about the tradeoffs when using blinded signing vs not, and what can and cannot be validated using zero knowledge proofs.
If with ZKP, an unprivelleged signer can validate policy rules and sign for a transaction without seeing the transaction itself, then why even use non-blinded signing?
Chain Code Delegation is here to make collaborative custody more private.
This is a massive boon for bitcoiners who want more privacy and it is incredible to see the Bitkey team leading the charge.
Shoutout to the Bitkey team and @npub1tr7n...nc05.
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