Block’s Big Bitcoin Push: Bitkey Redesign, Cash App Evolution, and Proof of Reserves

Show Notes

A wide-ranging discussion on Block’s latest bitcoin announcements from The 2026 Bitcoin Conference, including the evolution of Bitkey as a user-friendly multisig hardware wallet, new payment experiences like NFC and Cash App integrations, and bitcoin incentives. The conversation explores the tradeoffs between UX, security, and self-custody, debates protocol vs application-level features like vaulting, and examines the implications of proof of reserves, pooled custody models, and increasing withdrawal limits. More broadly, it reflects on how Block is positioning itself across custody, payments, and infrastructure, and what that signals for bitcoin’s path toward mainstream adoption. Press Release: https://block.xyz/inside/block-launches-bitkey-wallet-with-screen-automatic-bitcoin-earning-on-cash-app-and-proof-of-reserves Timestamps: 0:00 Bitkey’s new display and improved UX 03:30 Bitkey at a high-level: self-custody model and multisig recovery tradeoffs 06:06 Vaulting, wrench-attack protection, and Bitkey's Lightning roadmap 11:24 Square NFC payments and bitcoin incentives 14:28 Cash App bitcoin payments and p2p conversion 15:55 Proof of reserves and the limits of transparency 19:44 Withdrawal limits, customer custody behavior, and Block’s upmarket strategy 🎧 From the PBJ podcast recorded at 📍Presidio Bitcoin 🔗 Full episode: https://youtube.com/live/gebBz3V_8uo?feature=share 🌐 Learn more: https://www.presidiobitcoin.org/