The latest of Cold Card ~ Rudolfo Novak ~ Breaking Bitcoin
World Crypto Network
Rudolfo Novak (Coldcard) discusses PSBT's implementation for offline multisig creation across hardware wallets (Bitbox, Wasabi) while preserving privacy—avoiding xpub disclosure to custodians. Emerging research targets policy-enforced cosigning: hardware-bound spending rules enabling automated signing and coercion resistance, potentially via Tor. Topics span transmission without internet (radio, s

https://relay.towardsliberty.com/43b04cff3729ed1f0a9381e440422ee7db2b2c6e41231535397d6c12d0f11ad7.mp4