Bitcoin Takeover Podcast

• S16 E32: Bitcoin vs Monero vs Zcash Privacy with Diego Salazar & Luke Szramowski of Cypher Stack

  Diego Salazar & Luke Szramowski are working to build Cypher Space: a privacy & sovereignty company. In this episode, they compare + rate the privacy of Bitcoin, Monero, Zcash, Firo, Mimble Wimble (Litecoin, Grin), Zano & Beam. Time stamps: (00:00:59) Introducing Diego Salazar & Luke Szramowski (00:02:04) Tribalism and Privacy Protocols in Crypto (00:03:55) Why Privacy Matters & Personal Motivations (00:04:58) Diego’s Background and Cypher Stack (00:06:58) Luke’s Background and Mathematical Perspective (00:08:40) CoinJoin and the Limits of Bitcoin Privacy (00:09:10) Threat Models and Privacy Tool Selection (00:12:22) CoinJoin’s Effectiveness and Metadata Attacks (00:14:18) Comparing CoinJoin to Tor/VPN Usage (00:17:26) Overconfidence and Under-Researched Privacy Claims (00:19:52) Levels of Privacy and User Education (00:24:31) Defining Adversaries in Privacy Research (00:26:10) CoinJoin’s Real-World Threats and Research Gaps (00:27:17) Social Media, Nuance, and Privacy Debates (00:29:11) CoinJoin as “Add-On” Privacy and Side-Channel Attacks (00:31:46) Underestimating Adversaries and Attack Tools (00:38:37) Sponsor Plugs and Criteria for Privacy Evaluation (00:42:47) Scoring CoinJoin on Privacy Criteria (00:51:09) WabiSabi and Wasabi Wallet Improvements (00:59:29) Other Bitcoin Privacy Tools: BIP47 & Silent Payments (01:06:19) Human Error and Privacy Tool Usability (01:08:51) The Limits of Privacy Ratings and the Need for Nuance (01:12:19) Tribalism, Community Research, and Productive Debate (01:15:33) Non-Interactive Proofs and Security Assumptions (01:16:27) Bitcoin Maximalism and the Limits of Debate (01:17:34) Academic Rigor and the Need for More Research (01:20:01) Bitcoin’s Privacy Risks if Mainstream Adoption Happens (01:21:44) The State of Bitcoin Privacy Research and Funding (01:34:03) Bitcoin’s Missed Privacy Opportunities (01:37:14) Monero’s History and Privacy Technologies (01:41:03) Monero’s Anonymity Set and Privacy Trade-Offs (01:46:52) Monero’s Current Weaknesses and Upcoming FCMP (01:55:24) Monero’s Privacy Scores and Scalability (02:27:50) Zcash: History, Community, and Technology (03:00:29) Zcash’s Privacy Model and Accumulator Approach (03:05:56) Zero-Knowledge Proofs Explained (03:20:08) Zcash’s Privacy Scores and Tachyon Scalability (03:35:12) Firo (formerly Zcoin) and Spark Protocol (03:44:45) Firo’s Privacy Scores and Future Upgrades (03:52:06) Litecoin MWEB and Mimblewimble (04:01:32) MWEB Privacy Scores and Limitations (04:07:03) Other Privacy Projects: Zano, Beam, Salvium (04:10:02) Toxicity, Community, and the Human Element (04:17:00) Philosophy of Privacy and Human Nature (04:24:28) Fungibility, Bitcoin, and Social Realities (04:44:15) Summary and Chart of Privacy Scores (04:57:52) Resources for Privacy Research and Final Thoughts

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• S16 E31: Andrew Camilleri ”Kukks” on Ark, BTCPay Server & Open Source Bitcoin Software

  Andrew Camilleri, better known as Kukks, is one of the most prolific contributors to BTCPay Server & an advocate for using bitcoin as money. Recently, he started building Bitcoin Layer 2 applications for Ark Labs & believes in conservative improvements. Time stamps: (00:00:49) Introduction & Andrew’s Background (00:01:46) Getting Into Bitcoin & Altcoin Integrations (00:03:02) Focusing on Bitcoin & Monero Plugin (00:04:04) BTCPay Plugins & Community (00:04:22) Bitcoin’s Imperfections & Altcoin Use Cases (00:04:55) Pessimism & Stagnation in Bitcoin Development (00:05:16) Introduction to Ark & Its Evolution (00:06:10) Ark’s Technical Evolution (00:07:31) Ark’s Impact on Developer Morale (00:07:36) What is Ark? (00:09:08) Ark’s Virtual Ledger & Dust Problem (00:09:59) Off-Chain Payments & User Experience (00:11:07) Lightning Network vs. Ark (00:13:21) Custodial Lightning & Ark’s Broader Goals (00:15:13) Escrow & Multisig Use Cases (00:16:09) Bitcoin’s Usability & Fee Volatility (00:16:51) Miners & Second Layer Economics (00:19:08) Drivechains & Network Fragmentation (00:21:38) Rollups, ZK Proofs, and Simplicity (00:25:53) CTV, Musig2, and Soft Forks (00:28:12) OP_CAT, Collider Script, and Efficiency (00:32:38) Cost, Privacy, and Coinjoin (00:36:12) Stablecoins, Payments, and Swapping (00:38:14) Privacy, TumbleBit, and Ark’s Superiority (00:41:03) Expiry, Operators, and User Experience (00:44:14) Becoming an Ark Operator (00:47:31) Fedimints, Liquid, and Privacy (00:49:41) Security Against Operator Theft (00:51:31) HODLing, Expiry, and Automation (00:53:37) Payment Finality & Pre-Confirmation (00:57:49) Government Attacks & Decentralization (01:02:51) Ark’s User Experience & Wallet Integration (01:05:11) Lightning Interoperability & Partnerships (01:07:48) Arkade OS & Arcade Script (01:13:06) Underrated Use Cases: Escrow & Synthetic Assets (01:18:29) BTCPay Server’s Impact & Bitcoin Payment Adoption (01:22:23) Speculation, Regulation, and Medium of Exchange (01:24:20) Litecoin, Extension Blocks, and Privacy (01:26:01) Coinjoin, Amounts, and Privacy Pools (01:29:09) Bitcoin Upgrades, CTV, and Developer Frustration (01:34:27) Soft Fork Politics & Overselling Upgrades (01:41:53) Payments, Credit Cards, and Onboarding (01:44:11) Stablecoins, Speculation, and Fiat Mindset (01:48:48) Taproot Assets, Altcoins, and Control Tokens (01:52:17) Early Bitcoin Days & Escrow (01:54:53) Gaming, Digital Money, and Bitcoin Adoption (01:59:15) Speculative Attack & Fiat Demand (02:00:01) Supercycle Skepticism & Price Predictions (02:02:22) Hard Forks, Big Blockers, and Research Value (02:24:40) NFTs, Ordinals, and Free Market Transactions (02:36:28) BTCPay Plugins & Comparison to LNBits (02:43:14) Zero Conf, RBF, and Payment Risks (02:47:41) Ark’s Future: Liquidity & Decentralization (02:49:25) Testing Ark & Reference Wallet (02:51:00) Browser Wars & Internet Evolution (02:56:26) Scaling Bitcoin Payments & Libra Comparison (02:58:10) Tipping, Custodial Wallets, and Ark’s SDK (03:02:12) HODL Culture vs. Spending (03:06:07) Optimism, Pessimism, and User Adoption (03:08:13) Lightning’s Complexity & Ark’s Simplicity (03:11:18) Competition Among Layer 2s (03:14:13) Ark’s Launch, Operators, and Liquidity (03:16:08) Ark Operator Incentives & Fee Structure (03:17:08) Testing, Following, and Final Thoughts

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• S16 E30: Peter Rizun on Scaling Bitcoin with Hardware

  Peter Rizun is the chief scientist at Bitcoin Unlimited: a software client that aims to scale Bitcoin with big blocks, while also empowering regular users to run nodes. In this episode, we talk about what went wrong during the block size wars & his research in scaling hardware. Time stamps: 00:01:15 — Introducing Peter Rizun 00:03:32 — Early Block Size Debates and Satoshi’s Vision 00:07:45 — Block Size Limit History and Miner Soft Limits 00:10:10 — Dan Kaminsky’s 2011 Scaling Predictions 00:12:01 — Scaling Philosophy: Zero, One, Infinity and Earth-Scale 00:15:09 — Block Size Wars, Chain Splits, and Altcoin Proliferation 00:16:43 — Stablecoins, Lightning, and Bitcoin’s Use Case 00:19:03 — Zcash, Ethereum, and Bitcoin’s Missed Opportunities 00:22:11 — Bitcoin’s Script Limitations and Smart Contract Innovation 00:25:10 — Scaling Limits: Hardware, Storage, and Bandwidth 00:35:31 — Node Software, Formal Specs, and Core’s Dominance 00:44:00 — Censorship, Reddit, and the Block Size Debate 00:48:04 — SPV Nodes, Custodial Wallets, and Decentralization 00:51:30 — Block Size, Internet Speed, and Global Node Access 00:57:26 — UTXO Model, Dust, and State Management 01:01:37 — Ethereum, Zcash, and Node Benchmarking 01:03:26 — Hardware Acceleration and Specialized Chips 01:07:00 — Sponsorship Break and Bitcoin Adoption via Debit Cards 01:14:59 — History of Block Size Proposals and Client Forks 01:21:07 — Consensus, Forks, and the Role of Exchanges 01:25:40 — SegWit, SegWit2x, and Political Compromises 01:33:04 — Bitcoin Cash, Market Dynamics, and Altcoin Competition 01:39:34 — Stablecoin Fees, Global Demand, and El Salvador 01:46:52 — Decline of Bitcoin Payments and Missed Opportunities 02:10:56 — Lightning Network: Promise vs. Reality 02:22:12 — Shitcoin vs. Bitcoin Maximalism and Open Source Innovation 03:05:52 — Spam, Miner Policy, and Transaction Filtering 03:17:05 — Hardware Scaling: M.2 Accelerator and Node Commoditization 03:29:11 — Nexa: Experimenting with Proof-of-Work and Node Bottlenecks 03:37:44 — Craig Wright, Satoshi Identity, and Big Block Movement Damage 04:02:03 — Fork Proliferation, Community Division, and Stablecoins 04:04:31 — Bitcoin’s Future, Experimentation, and Open Research

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• S16 E29: Zooko on Ecash, Bitcoin & Zcash

  Zooko has been thinking about building decentralized Chaumian ecash since the mid 1990s. When Bitcoin came out, he was the first cypherpunk to write a blog post about it. And today, he's honoring Satoshi's last wish of researching ZK proofs with Zcash. Time stamps: Introducing Zooko (00:00:55) Early Cypherpunk and Digital Cash Days (00:03:18) Cypherpunk vs. Cryptography Mailing List (00:03:52) Discovering Digital Cash and Chaum’s Blind Signing (00:04:44) The Internet, BBS, and the Fall of the Berlin Wall (00:09:10) Growing Up with Technology in Eastern Europe (00:12:04) First Computers and Early Programming (00:13:02) Loading Games and Computer Limitations (00:14:05) Impact of Tariffs and Internet Access (00:16:47) Economies of Scale and Computer Conferences (00:18:28) Social Media, Privacy, and Information Overload (00:19:33) Twitter Blocking & Echo Chambers (00:21:06) Personal AI and Information Control (00:24:08) First Computer Memories and Speech Synthesis (00:28:55) Programming Languages: BASIC, Pascal, and C++ (00:31:15) Vocoder Technology and Privacy (00:32:27) Video Games and University Life (00:34:28) Science Fiction and Cypherpunk Literature (00:36:10) Working at DigiCash and Early Digital Currency (00:39:04) Nick Szabo, Social Scalability, and Economic Thought (00:46:27) AI-Generated Personas and Real-Life Community (00:52:42) Global Talent, Work Ethic, and Financial Management (00:55:51) David Chaum as a Boss and DigiCash’s Downfall (01:00:06) Decentralizing Ecash and Early Bitcoin Attempts (01:04:50) Wei Dai, Crypto++ and Peer-to-Peer Innovation (01:06:19) Open Source Maintenance and Funding Challenges (01:10:00) Why Digital Cash Mattered in the 1990s (01:12:30) Cypherpunks, Remailers, and Privacy Motivation (01:13:46) Bitcoin’s Early Days and Zooko’s Initial Skepticism (01:19:55) Bitcoin Advocacy and Security Flaws (01:39:07) Zooko’s Triangle and Naming Systems (01:43:31) Altcoins, Experimentation, and Maximalism (01:51:09) Bitcoin’s 2013 Privacy Papers: ZeroCoin & ZeroCash (01:55:12) Funding Innovation and Open Source Economics (02:00:27) Zcash Launch, Sidechains, and Market Dynamics (02:03:40) Sponsors and Bitcoin Innovation Renaissance (02:09:01) Proof of Stake, Hybrid Models, and Cross Link (02:26:14) Network Sustainability and Burn Mechanisms (02:33:37) Quantum Resistance and Lost Coins (02:37:26) Peter Todd’s Compute Node, Zcash Ceremony and Trusted Setup (02:42:19) Zero Knowledge Proofs and Counterfeiting Bug (03:05:35) Zcash Design Choices and Block Size (03:43:04) Bitcoin Blocksize War and Evolution (03:49:09) Zcash vs. Monero and Privacy Models (04:27:33) Tachyon: Sean Bowe’s Scalable Privacy Breakthrough (04:08:22) Live Zcash Demo and Address Privacy (05:27:00) Zcash Mining, Liquidity, and DEX Integration (05:49:57) Decentralization, Transparency, and the Future (06:02:22) Closing Remarks and Podcast Wrap-Up (06:05:15)

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• S16 E28: Proof of Work Alliance with Charles Chong, Summer Meng & Spencer Yang

  In a predominantly Proof of Stake world, The Proof of Work Alliance emerges as a champion of research & education among Proof of Work miners. Fractal Bitcoin's Charles Chong & Spencer Yang, plus Bitmars' ASIC Queen Summer Meng tell us how it all works. Time stamps: Introducing Charles, Summer & Spencer (00:00:50) Overview of the PoW Alliance (00:01:43) Challenges in Launching PoW Projects (00:02:32) Formation of the PoW Alliance (00:04:19) Importance of Collaboration (00:05:21) Significance of the PoW Alliance (00:06:48) Members of the PoW Alliance (00:08:26) Addressing Environmental Concerns (00:09:24) Renewable Energy in Bitcoin Mining (00:10:29) Electricity Usage Comparisons (00:12:37) AI and Bitcoin Mining Competition (00:15:21) Centralization vs. Decentralization in Alliances (00:20:55) Discussion on Risk and Collaboration (00:22:50) Analogy with Polling (00:23:44) Social Coordination in Bitcoin (00:24:15) ASIC Manufacturing Oligopoly (00:25:04) Challenges for New ASIC Manufacturers (00:26:55) Emerging Competitors in Mining (00:28:43) Mining's Capital Intensity (00:29:39) ASIC Resistance Debate (00:30:42) Economic Incentives in Mining (00:31:16) Proof of Work Alliance Benefits (00:32:38) Historical Context of Mining Innovations (00:33:50) Decentralization vs. Large Mining Pools (00:35:10) Impact of Economic and Social Factors (00:36:34) Innovation in Proof of Work (00:38:05) Challenges in Mining Innovation (00:40:30) Broader Ecosystem Innovations (00:41:11) Micro Innovations in Mining (00:42:15) Merge Mining Popularity (00:43:17) Proof of Stake Popularity (00:45:03) Validator Business Models (00:45:29) Alignment Issues in Mining (00:47:10) Blind Merged Mining Discussion (00:48:34) Risks of Drivechains (00:49:20) Concerns Over Block Rewards (00:52:14) Debate on OP_Return Function (00:54:19) Passion in Bitcoin Debates (00:56:20) Concerns About Ossification (01:00:04) Impact of Inscriptions on Miners (01:03:26) The Importance of Cross-Chain Integration (01:05:30) Challenges of Bitcoin Adoption (01:06:05) Gas Fees Comparison (01:07:12) Stablecoins in the Bitcoin Ecosystem (01:08:05) Celebrating Pizza Day (01:10:53) Fractal Bitcoin's Pizza Challenge (01:14:30) Reflections on Market Volatility (01:16:14) Joining the PoW Alliance (01:18:22) How to Contact Charles, Summer & Spencer (01:19:12) Closing Remarks and Future Announcements (01:20:42)

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