Citadel Dispatch

ODELL
  • 4.9 (116)
  • TECHNOLOGY
  • UPDATED MONTHLY

Actionable bitcoin and freedom tech discussion. Funded by our audience. No ads or sponsors.

  1. 2D AGO

    CD189: MONEYBADGER - BITCOIN PAYMENTS IN SOUTH AFRICA

    Carel van Wyk is the founder and CEO of MoneyBadger. MoneyBadger enables easy bitcoin payments at 650 thousand stores in South Africa. MoneyBadger on Nostr: https://primal.net/p/nprofile1qqsz85k206vm3vqdmlvcy9l4kyfqchlnf4hnctasxufa3ph0ck9decgpk49rf MoneyBadger on X: https://x.com/MoneyBadgerPay Wesbite: https://www.moneybadger.co.za/ EPISODE: 189 BLOCK: 933542 PRICE:  1112 sats per dollar (00:03:26) What is Money Badger? Mission and merchant focus (00:05:13) Paying anywhere in South Africa (00:05:27) 650,000 locations (00:07:04) Leveraging existing QR payment rails and the Pick n Pay breakthrough (00:10:01) How the flow works: bridging proprietary QR to Lightning (00:11:18) MoneyBadger app as translator vs. using any Lightning wallet (00:13:04) Fiat settlement, volatility handling, and business model (00:17:07) Why no Money Badger wallet? Integrations with Blink, Zeus, Aqua (00:20:20) A clever LNURL/Lightning Address pattern to decode merchant QRs (00:23:39) Pragmatic, a bit hacky, and works across wallets (00:28:04) Replicability beyond SA: Kenya’s M‑Pesa, Ghana, Latin America (00:32:10) Creating demand: Bitcoin Ekasi as proof-of-use for Pick n Pay (00:35:15) Real usage: growth to ~5k tx/month and $200k volume (00:39:40) Who spends Bitcoin? From cash users to OGs and ideologues (00:42:34) Incentives and the challenge of moving the middle (00:43:42) Tax context in South Africa: capital gains thresholds (00:46:59) UX talk: tap-to-pay vs. QR, hardware realities and patience (00:49:12) Beyond POS: treasury, suppliers, and stablecoin pull (00:51:03) Bitcoin vs. stablecoins in SA usage; Luno/Binance integrations (00:55:07) Wild flexibility: paying with almost any token via partners (00:57:46) Urgency to prove Bitcoin as money before it’s siloed (00:58:00) Hypothetical: Square/Cash App design vs. bridge approach (01:03:41) Consumer friction at checkout and signaling acceptance (01:07:38) Tipping, bridges to Venmo/Cash App, and cash realities (01:09:19) Call to action: spend Bitcoin to create demand (01:11:08) Wrap-up: plans to visit SA, links, and farewell more info on the show: https://citadeldispatch.com learn more about me: https://odell.xyz

    1h 12m

  2. JAN 14

    CD188: CORALLO - STEALING SATOSHI'S SATOSHIS

    Matt Corallo has been a bitcoin developer for nearly fifteen years. We discuss his views on the recent bitcoin core bug, the proposed us clarity act, and the risks/mitigations of quantum computing. Corallo on Nostr: https://primal.net/mattcorallo Corallo on X: https://x.com/TheBlueMatt Save our Wallets: https://SaveOurWallets.org Ten31 Quantum Report: https://www.ten31.xyz/insights/quantum-computing-bitcoin-security EPISODE: 188 BLOCK: 932276 PRICE: 1030 sats per dollar (00:03:37) Bitcoin Core legacy wallet migration bug (00:07:41) Backups, edge cases, and defensive coding culture (00:07:58) Clarity Act and developer protections: SaveOurWallets.org (00:10:19) Self-custody legal clarity (00:13:12) Partisan Bitcoin ownership data (00:14:43) Surveillance and KYC/AML tightening concerns (00:20:43) Quantum threat framing and scope (00:22:10) Seed phrases enable quantum-safe proofs via hashes (00:24:58) What quantum breaks: exposed public keys, Taproot, and address reuse (00:31:21) Design choices hinge on whether insecure spend paths are frozen (00:33:43) Options: backup TapLeaf, new address types, and fee/UX tradeoffs (00:36:14) Opt-in Taproot versioning to signal post-quantum readiness (00:38:07) Adoption reality: wallet support, privacy impacts, and rollout pace (00:39:34) Freeze-or-not debate: social contract, market dynamics, forks (00:43:56) Public vs. secret quantum progress: who gets there first? (00:47:06) Fork economics: supply shocks, Satoshis coins, and market choice (00:55:01) In-system vs. out-of-system theft; why quantum is different (01:10:01) Preparing pragmatically: give future users post-quantum options (01:24:28) Timelines and hype: where quantum computing really stands (01:29:00) Final takeaways: no panic more info on the show: https://citadeldispatch.com learn more about me: https://odell.xyz

    1h 32m

  3. 12/16/2025

    CD187: ANJAN SUNDARAM - INDEPENDENT JOURNALISM

    Anjan Sundaram is an independent journalist, author, and founder of the Stringer Foundation with a mission to expand global independent journalism. We discuss his work and how open protocols, such as bitcoin and nostr, empower journalists. Anjan on Nostr: https://primal.net/anjansun Anjan on X: https://x.com/anjansun Stringer Foundation on X: https://stringerjournalism.org/ EPISODE: 187 BLOCK: 928149 PRICE: 1140 sats per dollar (00:03:09) Anjan’s path: from Yale and Goldman Sachs to war reporting (00:06:07) How war reporting is changing in the age of social media (00:10:32) What makes a journalist? Raw footage vs. verified reporting (00:14:00) Publishing pathways, bylines, pay, and lack of safety nets (00:18:12) Fixing incentives: philanthropy, prizes, and media economics (00:21:00) Turning down quant life: the Goldman Sachs detour (00:23:07) Values alignment: finance, bitcoin, and free information flows (00:24:49) Bloomberg, Substack, and sustainability (00:26:19) Designing the Stringer Prize: credibility, juries, and impact (00:29:39) Launching Stringer: partners, applications, and endowment plan (00:32:10) Why pay in bitcoin: global payouts, fees, and onboarding stories (00:35:33) Grants to awards pipeline and the courage index (00:41:01) Lean ops vs. big charity: publicity without bloat (00:43:59) The tenure problem: long-term support without dependency (00:48:26) Transformative fellowships: MacArthur model and global gaps (00:51:30) Journalism’s core: elevating humane, inspiring stories (00:53:10) Value-for-value, Nostr, and building ad-free media (00:58:24) Own your audience: platforms vs. protocols (01:02:30) Bootstrapping Nostr: network effects and onboarding journalists (01:05:13) Building a global home for independent journalists (01:06:07) The drought in investigative reporting and who funds it more info on the show: https://citadeldispatch.com learn more about me: https://odell.xyz

    1h 9m

  4. 12/12/2025

    CD186: JOHN ARNOLD - TEN31 MARKET UPDATE

    John Arnold is a colleague of mine at Ten31, we are five man team focused on investing in and supporting the best bitcoin businesses globally. This is our third quarterly update where we cover current market dynamics and our outlook. More info on Ten31: https://www.ten31.xyz Quantum: https://www.ten31.xyz/insights/quantum-computing-bitcoin-security Note: AnchorWatch does not use taproot. I was mistaken. John on Nostr: https://primal.net/john John on X: https://x.com/JohnArnoldTen31 Ten31 on X: https://x.com/ten31funds EPISODE: 186 BLOCK: 927606 PRICE: 1108 sats per dollar (00:07:01) Four Year Cycles: Liquidity vs. halving (00:12:21) Market manipulation? (00:13:53) Day vs. night: IBIT hours, ETFs, stay humble and stack sats (00:16:40) Premarket/postmarket liquidity and trading (00:16:47) Quantum: FUD Rising (00:24:03) Address types at risk: P2PK, P2PKH race, Taproot exposure (00:25:11) Practical mitigations (00:27:28) Long-range vs. short-range quantum attacks and feasibility (00:28:40) Reality check: scaling physical QC and secrecy constraints (00:31:01) Coordination and upgrade paths: post-quantum options (00:33:30) Social contract: no seizure of old coins (00:36:25) Did quantum FUD drive the drawdown? (00:40:00) Why gold and silver are at highs while Bitcoin lags (00:51:06) Mega-cap tech as the new savings account and TINA (00:57:36) Fed cuts, QT ends, QE or not semantics, and Bitcoins response (01:07:00) Looking ahead: more cuts, policy path, and 2026 setup (01:13:01) Giga-bullish case: scarce assets vs. fiscal-monetary impulse (01:16:03) Gold vs. Bitcoin for individuals and sovereigns (01:20:02) Counterparty risk with ETFs and the case for self-custody (01:26:12) Bottom in? Price targets, humility, and risk management (01:30:29) USD tokens (stablecoins): growth, limits, and policy aims (01:35:04) Tethers dominance, gold tokens, and a silver tangent (01:41:03) Closing thoughts: on-chain flows, whos buying, and sign-off more info on the show: https://citadeldispatch.com learn more about me: https://odell.xyz

    1h 46m

  5. 12/02/2025

    CD185: ROB AND ANDREAS - BETTER BITCOIN WALLETS

    Rob is the creator of Kyoto, an implementation of compact block filters that makes it easier for developers to build more private bitcoin wallets. Andreas is the creator of Bitcoin Safe, an app designed to make it easier to use hardware wallets securely. Andreas on Nostr: https://primal.net/p/nprofile1qqsqd0y6klqxew4glwggn63jvumrgprnl32tw7hpuzfhv6msgf7y3agm756qu Bitcoin Safe on Nostr: https://primal.net/p/nprofile1qqsyz7tjgwuarktk88qvlnkzue3ja52c3e64s7pcdwj52egphdfll0cq9934g Bitcoin Safe on X: https://x.com/BitcoinSafeOrg Kyoto on Github: https://github.com/rustaceanrob/kyoto 2140: https://2140.dev EPISODE: 185 BLOCK: 926163 PRICE: 1099 sats per dollar (00:03:04) Bitcoin Dev Kit (00:04:39) Andreas (Bitcoin Safe) and Rob (Kyoto) (00:05:58) What is BDK? Goals, safety, and language bindings (00:09:27) Why BDK matters for UX, testing, and reliability (00:09:50) Kyoto origin story and compact block filters vision (00:13:21) Privacy model: servers vs. compact block filters (00:19:39) Do compact block filters work on mobile? Performance tradeoffs (00:23:55) Kyoto as a Rust reference client for BIP157/158 (00:24:35) Bitcoin Safe overview: desktop cold storage with hardware signers (00:25:40) Using compact block filters in Bitcoin Safe: initial sync vs. daily speed (00:28:27) Why connect your own node and peer pools for CBF (00:33:14) Design choice: hardware-only wallets and setup wizard (00:36:29) Differentiating from Sparrow: private sync and Nostr-based multisig coordination (00:39:08) Will Sparrow adopt compact block filters? Considerations and UX (00:48:49) Developer ecosystems: 2140, OpenSats, and in-person collaboration (00:50:38) Making CBF the default: UX, education, and recovery flow (00:52:56) Electrum server defaults and operational notes (00:53:50) Birth heights, segwit/taproot start points, and future optimizations (00:56:17) Address reuse, scanning guarantees, and performance benchmarks (01:00:13) Bandwidth vs. compute: where the real bottlenecks are (01:00:19) Closing discussion, calls to action, and advice for new devs more info on the show: https://citadeldispatch.com learn more about me: https://odell.xyz nostr: https://primal.net/odell

    1h 9m

  6. 11/24/2025

    CD184: CALLE - BITCHAT AND CASHU

    Calle is the creator and lead maintainer of the Cashu open source protocol. Cashu enables users to easily use bitcoin in a private, offline, and programmable way. Calle is also the maintainer of Bitchat android, a cross platform meshnet app that enables users to chat and send bitcoin without an internet connection. Calle on Nostr: https://primal.net/calle Calle on X: https://x.com/callebtc Bitchat: https://bitchat.free/ Cashu: https://cashu.space/ Hackathon: https://nutnovember.org/ AOS: https://andotherstuff.org/ EPISODE: 184 BLOCK: 925030 PRICE: 1126 sats per dollar (00:04:44) Bitchat: Bluetooth Mesh Without Internet (00:06:21) Protests and Outages Drive Downloads: Nepal, Indonesia, Madagascar, Côte d’Ivoire, Jamaica (00:09:51) Predicting Unrest from Download Spikes (00:14:27) Adding Nostr Transport: Hyperlocal Mesh vs. Geohash Chats (00:18:03) Geolocated Relay Selection (00:23:56) Ephemeral Identity, UX, and Censorship Considerations (00:28:37) Mesh Upgrades: Voice, Images, Files, Source Routing like Tor (00:30:23) WiFi Aware Mesh and Background Operation to Boost Range and Uptime (00:34:15) White Noise vs. Bitchat (00:40:00) Protocols and Transports: Weaving White Noise, Cashu, and Bitchat (00:43:48) Transport Neutral Design: Cashu and Nostr (00:45:57) Cashu Progress: Shipping Libraries, Dev Ecosystem Growth (00:51:18) We Need More Bitcoin Devs (00:53:08) Integrating Cashu into BitChat: Wallet UX and Local Payments (00:57:17) Running Mints: Spark, Ark, and Proof of Reserves/Liabilities (01:03:40) Layered Scaling Without Consensus Changes: Ark, Spark, Cashu (01:04:18) Bitcoin for Signal: Replacing MobileCoin with Cashu (01:13:32) Why Cashu for Signal? Privacy and Scaling (01:22:31) Mint Choice vs. Simplicity: Defaults, Lightning Interoperability, and UX (01:32:21) Focus on Financial Privacy for the Masses, not Distractions (01:37:11) Zcash Hype Dismissed; Call to Build on Bitcoin (01:39:26) Nut November Hackathon and How to Contribute to Bitchat and Cashu (01:45:06) Happy Thanksgiving more info on the show: https://citadeldispatch.com learn more about me: https://odell.xyz nostr: https://primal.net/odell

    1h 47m

  7. 11/11/2025

    CD183: NVK - COINKITE AND COLDCARD

    NVK is CoFounder of Coinkite, the makers of Coldcard. Coldcards are designed to help users securely use bitcoin offline. We discuss the variety of features that Coldcards provide users and the tradeoffs present when choosing how to best secure bitcoin. Disclosure: Ten31 is the exclusive investor in Coinkite. my easy coldcard guide: https://werunbtc.com/coldcard NVK on Nostr: https://primal.net/nvk NVK on X: https://x.com/nvk Coinkite:  https://coinkite.com/ Ten31: https://www.ten31.xyz/ Cove Wallet: https://covebitcoinwallet.com/ Sparrow Wallet: https://sparrowwallet.com/ Bull Wallet: https://wallet.bullbitcoin.com/ White Noise: https://www.whitenoise.chat/ Bitkey: https://bitkey.world/ EPISODE: 183 BLOCK: 923180 PRICE:  967 sats per dollar (00:03:36) Whats New at Coinkite and the Growing User Base (00:05:24) Designing for Global Users and Changing Threat Models (00:06:36) Power vs. Simplicity (00:08:44) Onboarding Stories (00:09:56) Mobile vs Desktop Habits and Emerging Wallets (00:14:28) QR Workflows, NFC Push-tx, and SD Card Signing (00:15:32) Travel and Borders (00:17:04) Key Teleport: Device to Device Encrypted Sharing (00:22:38) Spending Policies (00:25:02) Trick PINs, Duress Flows, and Safe Inspired Defenses (00:29:02) Border Stories and Why Brick Me PIN Exists (00:31:05) SeedXOR vs Passphrase vs Multisig (00:34:07) Family Planning and Inheritance Strategies (00:40:00) Physical Security Model: Dual SE + MCU (00:43:37) Comparisons to Trezor Designs and Components (00:49:44) Seeds as Sovereignty and Unilateral Exit (00:53:21) Debate: iCloud Backups, Ease vs Sovereignty (01:00:08) Bitkey Debate: Goals, Risks, and Break Glass Exit (01:08:54) Edge Cases, Loss Scenarios, and Marketing Ethics (01:20:05) Coinkite Roadmap (01:22:23) Future Products (01:28:01) Touchscreens, Supply Chain Risk, and PWAs (01:30:31) Cove, White Noise MLS, and AI Bots (01:32:26) Nostr Adoption, Socials, and Moderation (01:41:36) Wrap Up, Gratitude, and Ways to Support more info on the show: https://citadeldispatch.com learn more about me: https://odell.xyz

    1h 46m

  8. 10/29/2025

    CD182: ALEX B - ARKADE

    Alex is Head of Ecosystem at Ark Labs. We discuss their new bitcoin protocol: Arkade. It can be used with the lightning network to make self custody bitcoin usage more powerful and accessible. This rip was in person, in Lugano. We are both here for the PlanB Forum. Alex B on Nostr: https://primal.net/alexb Alex B on X: https://x.com/bergealex4 Ark Labs: https://arklabs.xyz/ PlanB Forum: https://planb.lugano.ch/planb-forum/ EPISODE: 182 BLOCK: 920390 PRICE:  915 sats per dollar (00:00:35) Arkade Activation Day in Lugano (00:03:11) What is Ark? Positioning vs. Lightning and L2s (00:04:32) Ark fundamentals: batching, VTXOs, and two-of-two with an operator (00:08:38) Double-spend risks and the operator trust model (00:10:24) Settling vs. zero conf: anchoring batches onchain (00:16:04) Beyond cheap payments: programmable offchain Bitcoin (00:18:12) Ark Lightning swaps and unilateral exits (00:21:01) Unilateral exit costs, trees of transactions, and anchoring cadence (00:26:17) Wallet UX: automating settlement and exposure management (00:27:22) Ark vs. Spark: security model and settlement feedback to L1 (00:34:39) Onchain demand: Lightning realities, Spark cadence, Ark batches (00:36:59) Ark is tech, Arkade is implementation (00:37:45) Batch frequency and scaling: hundreds per batch, Taproot efficiency (00:38:41) Covenants soft fork would cut interactivity overhead (00:42:01) Users, servers, and always on clients: who runs what? (00:45:02) DeFi on Arkade: loans, new opcodes, and secondary markets (00:47:00) Credit, derivatives, and Bitcoinization (00:55:06) Company model: Ark Labs, open source Arkade, and revenue (01:01:02) Flagship apps strategy: neo-bank, swaps, prediction markets (01:07:05) Try it today: arkade.money PWA and roadmap to native apps (01:12:05) Operators landscape: competition, network effects, resilience (01:15:27) Closing thoughts: adapt, focus, and take the white pill more info on the show: https://citadeldispatch.com learn more about me: https://odell.xyz

    1h 18m
See All (231)

4.9
out of 5
116 Ratings

About

Actionable bitcoin and freedom tech discussion. Funded by our audience. No ads or sponsors.

Information

  • Creator
    ODELL
  • Years Active
    2020 - 2026
  • Episodes
    231
  • Rating
    Explicit
  • Copyright
    © ODELL
  • Show Website
    Citadel Dispatch

You Might Also Like