
Hosted by With David King, Max Webster, and Steve Lee · EN
PBJ is a weekly live show recorded at Presidio Bitcoin where 3 friends gather to make sense of bitcoin’s latest topics, from distilling technical concepts to discussing new ways to use bitcoin to determining its impact on the financial system. Join David King, Steve Lee, and Max Webster, longtime bitcoiners with deep roots in Silicon Valley, as they swap knowledge, challenge assumptions, and joust about the big questions of the day, bridging the gap between big tech and bitcoin. presidiobitcoin.substack.com

0:00 - The COLDCARD hack: bitcoin’s worst security incident ever? 4:30 - What happened and how thefts were identified 7:04 - The random-number failure behind the hack 13:24 - The right way to generate wallet entropy (i.e., dice rolls) 20:45 - Who is affected and what users should do 31:43 - Custody options and why diversification matters 37:37 - The source-license change behind the COLDCARD bug 40:33 - How AI changes open-source security audits 52:30 - How the community can limit further theft 59:56 - Why patches cannot fix keys and recovering stolen bitcoin 1:10:37 - Does AI strengthen the case for custodians? 1:16:30 - Future of self-custody 1:21:43 - Evaluating Bitkey, Ledger, Trezor and multisig post-COLDCARD 1:31:04 - ETFs, custodians and new transparency standards SHOW NOTES: PBJ custody survey episode: https://www.youtube.com/watch?v=OSanv5Z-DA4 Block COLDCARD blog post: https://engineering.block.xyz/blog/predictable-rng-fallback-and-32-bit-reseed-in-coldcard-firmware

0:00 - Opening banter, Nostr momentum & voice-first computing 7:21 - Presidio Bitcoin’s visiting member program 10:30 - Bitcoin Security Consortium: quantum preparedness, tradeoffs & independent funding 26:07 - Buzz launches to strong early adoption 35:53 - Buzz’s Nostr architecture and user-owned identity 48:28 - Can Anthropic or OpenAI copy Buzz? 53:24 - Buzz onboarding, local agents & security tradeoffs 1:03:37 - Learning through shared agents and 15-minute hackathons 1:07:54 - Mesh LLM and bitcoin-powered agent onboarding 1:18:52 - Wavelength and the growing Ark ecosystem 1:27:08 - Foundry’s BIP 110 vote and Stratum V2 1:37:20 - Nostr web of trust for humans and agents 1:41:10 - DK's treasure hunt progress and AI-assisted mysteries

0:00 Making music with AI and the limits of today’s models 3:21 - Latent spaces & the future of creativity 8:04 - Will AI surpass human curiosity? 12:54 - Using AI to rediscover the ancient past 18:23 - How AI is transforming real-world treasure hunting 33:09 - Using Buzz and agents to solve unsolved mysteries 42:32 - Project Loupe’s early success and who should it scan next? 48:07 - Which projects deserve Loupe's audits? 1:08:20 - What Stripe could gain by acquiring PayPal 1:09:56 - Bitcoin’s worsening performance against gold 1:15:51 - Kimi K3, the open-weight AI race, and what it means for frontier AI labs

0:00 - World Cup fallout and opening banter 5:23 - Goose Development Kit (GDK) week at Presidio Bitcoin 9:29 - Why Spiral is expanding into AI & how it helps bitcoin 19:01 - GDK’s near-term roadmap and Mesh LLM 25:52 - Combining open and frontier AI models 33:20 - Preventing data leaks between AI models 38:02 - Anthropic's possible window into how AI models think 42:24 - How Goose connects apps, agents, and models 47:36 - Subscription pricing versus open agent ecosystems 54:37 - Can bitcoin support a global naming system? (the data-availability challenge) 1:03:10 - Who decides which bitcoin name is valid? 1:11:48 - Merkle batching and the hidden-name problem 1:21:00 - Can auctions work if the data stays hidden? 1:29:00 - Applying bitcoin’s peer-to-peer model to names 1:32:53 - Should bitcoin names use its own blockchain? SHOW NOTES: Goose: https://goose-docs.ai/ Spiral: https://spiral.xyz/ Spiral x AI announcement substack: https://spiralxyz.substack.com/p/spiral-x-goose-the-best-is-yet-to Presidio Bitcoin GDK event recording: https://www.youtube.com/watch?v=m7NGzb8m0nk

0:00 Summer camp. Teaching DK what the World Cup is. Steve visits the PBJ Remote studio. 13:52 What is Goose & the alpha of what's to come with open source AI 20:40 The kinds of things Goose Development Kit enables 33:10 Come and meet the Goose team at PB next Wednesday! 39:26 DK's experience using Buzz as a great example of the ACP standard and using Nostr 54:22 Steve's take on how Buzz changes open source software development 1:04:46 Max's Claude pilling moment, and it becoming more paternalistic over time 1:10:05 Compute constraints causing strange market dynamics 1:13:03 OUSD Stablecoin and its effects on Circle, Tether, and the broader market 1:27:58 Quick comment on Strategy, MSTR & STRC, and its long-term outlook SHOW NOTES Join us on Jamchat.fun

0:00 World Cup chatter, DK searching for sports on Google, Good times on Jamchat.Fun 6:05 Recap of the Local AI Builder last night here at Presidio Bitcoin. Tom's local AI setup and how he's using it. 15:05 A watershed moment when Fable received export control from the US government 20:12 Is this like the Satoshi moment for banking in 2008 for AI in 2026? 28:23 Presidio Bitcoin's Open Source AI Summit this September! 36:25 Do you still have a business if everything is built on an AI platform? What's the moat? 40:25 Takes on SpaceX as an AI company post-Cursor buy. Launch is still unique. 47:12 Elon says regulation is the hurdle to getting more solar on Earth, which is why he's going to space 50:56 Bitcoin Forks, working on Bitcoin Core, and how updates happen 1:06:22 What is the timeline for these activities? 1:12:20 Touching on Drive Chain, Quantum, BIP 110, & BIP 361 1:18:42 What is the Paul Sztorc eCash hard fork? First one in 9 years? 1:23:53 Illinois signed into law a transfer tax for digital asset moves like Bitcoin 1:28:15 US Sovereign Wealth Fund buying, or taking, AI company equity as they did with Intel? SHOW NOTES: https://opensourceaisummit.org/ https://tomtunguz.com/

0:00 We keep getting requests to talk about basketball. What about the World Cup? 7:40 The future of livestreaming is https://jamchat.fun/ 15:30 Unveiling Buzz, an open source project, for AI native communications built on Nostr 25:26 Bitcoin is open source money, Nostr is open source identity 31:13 To summarize, Buzz brings together agents to collaborate; multiplayer & multiagent workflows 36:11 Extending Buzz functionality with a Lexe wallet integration for bitcoin payments 40:30 What is the future of the corporate structure with autonomous agents and AI personhood? 53:29 Anthropic's Fable 5 drama, what is going on? 1:00:25 What is the best approach for AI deployment? 1:07:34 We're most excited about really good open models & layers coming to the market 1:09:52 Bark launches on mainnet as a bitcoin layer 2, and comparing it to Lightning 1:21:44 Will interoperable decentralized money matter more to agents than humans? 1:26:55 Feedback from last show, Surge uses USDC on Base, and what is the Ethereum vs. Base value proposition? SHOW NOTES: Max's Article on Nostr Identity https://www.hivemind.vc/identity

00:00 Welcome back (we missed a week) 00:56 The Cash App Wand: tap-to-pay NFC device that sold out in 10 hours 09:07 Surge: a self-custody, no-KYC bitcoin-backed credit line 16:07 The Taproot design and how Surge uses it 21:28 How Surge tackles the oracle & liquidation problem 28:08 Base/Ethereum dependence, MPC & the signer network (Surge's lender side) 37:34 Borrowing against your bitcoin to buy AI stocks instead of selling 38:41 Cash App's USDC integration 51:14 Living design docs, AI-native shows & project constitutions 54:24 Is AI sucking liquidity out of bitcoin? 1:00:00 The IPO wave and the AI bubble debate 1:06:00 The Zcash crash: Opus uncovers an inflation bug 1:07:55 Privacy vs. auditable supply, and why this can't happen to bitcoin 1:11:19 Turnstiles & Orchard: can Zcash actually recover? 1:14:22 AI vs. software security & Spiral's Project Loupe 1:23:40 Cloudflare: AI agents overtake humans in web requests 1:27:32 Wrap-up & teasers (Spiral's AI work, NVIDIA, Sprout)

0:00 Getting off Twitter, losing passwords, and staying up to date with Stackernews 4:30 Why we find the Strategy conversation interesting, and we will still cover basketball 7:11 Can MSTR blow up? Unpacking the claim that Saylor is a new SBF 13:34 What are the outcomes and probabilities of Bitcoin and MSTR's future 21:00 How much does bitcoin need to grow to support MSTR's credit products? 25:00 Is the biggest risk Coinbase and its custodians or esoteric DeFi demand? 32:15 What's the investment thesis of holding MSTR vs STRC? 41:40 Finding new products from the synthesis of old concepts 45:41 Using Proof of Work for hot tubs creates a security issue? 55:55 Bigger picture and putting into context the security budget for bitcoin 1:05:27 Is this a design flaw of bitcoin? 1:11:40 Underlying issue is we don't know what the annual security budget should be. 1:21:00 What are the attack vectors to Bitcoin from a non-economic actor, like a nation-state? SHOW NOTES: Transaction Fee Paper (Budish, 2024) https://socialsciences.uchicago.edu/sites/default/files/2024-09/Economic%20Limits%20Crypto%20Blockchains%20-%20QJE%20Sept%202024.pdf

0:00 Streaming in any language you want via https://babelagent.xyz/ 10:09 It used to be that if you left your job to study bitcoin. Now it's study vibecoding. 11:50 PBJ Podcast worth a MILLION dollars? 16:44 Okay, let's talk about bitcoin 17:24 Unpacking Bitcoin Core v31 21:12 Steve's top three highlights from Core v31. Feature 1: Embedded ASMAP 30:14 DK's security concerns and Anthropic Mythos model 31:16 Getting to Max's questions and other initiatives around node security 39:27 Feature 2: private transactions 47:47 Feature 3: cluster mempool & discussing block rewards vs fee. 58:22 Okay, what is cluster mempool, how it works, and why this could matter 1:01:56 Closing out the Bitcoin Core conversation and why it's important 1:03:22 Project Loupe, AI security scanning, to discover vulnerabilities in projects 1:13:26 This is important as bitcoin is the biggest honeypot for AI to hack 1:20:31 Another big release! Updates to LDK Server to ease building and operating an LSP 1:29:45 Steve's hot takes on the Lightning Network SNOW NOTES https://babelagent.xyz/ https://bnoc.xyz/