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BITCOIN RAILS #34: Bitcoin’s Security & Quantum Risks—and the Future of Satoshi’s Coins | with Jameson Lopp Jameson Lopp “Most people don’t think about security until it’s too late,” says the Casa co-founder and CSO. One of the most prolific thought-leaders in Bitcoin security and privacy, there are few...

14,538 views • 8 months ago •via X (Twitter)

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BITCOIN RAILS #36: The Birth Story of ‘OPCAT’ | with proposal co-author Ethan ✨ is on BlueSky✨ Heilman 🐱 🔗 YOUTUBE: 🌿 SPOTIFY: As interest in Bitcoin Layer 2s skyrockets, the inclusion of OP_CAT — an opcode enabling concatenation of elements in the Bitcoin stack — has become a key technical upgrade to watch for its potential in the development of trustless bridges. OP_CAT co-author Ethan ✨ is on BlueSky✨ Heilman 🐱 and I sat down to discuss debate around this opcode — including why it’s controversial, the cultural environment shaping its future, and why some worry its broad expressivity could pose “unknown risks” to Bitcoin over time. More recently, Ethan co-authored BIP 360 with Hunter Beast 🕯️ — another controversial proposal aimed at addressing Bitcoin’s quantum vulnerabilities. Suffice it to say, there are few people with Ethan's experience in navigating Bitcoin politics and its shifting governance landscape as we move towards ossification over time. In this episode, we cover: - The origins of OP_CAT and why it was included and removed from early Bitcoin - What makes OP_CAT so powerful (and why that worries some developers) - Cultural shifts in Bitcoin governance as its developer community matures - The ‘great covenants debate’ + OPCAT vs. CTV - The path to BIP 360 and why Bitcoin should be ‘quantum ready’ This episode is powered by: - Best In Slot (Best in Slot | BRC2.0 🧑‍🍳), the leading API for Ordinals and BRC20 data aggregation and indexing - Spark (Lightspark), a statechains implementation leading the path towards institutional adoption of Bitcoin-powered payments - Citrea (Citrea), the leading Bitcoin Rollup technology and contributor to the BitVM alliance 📍 Timestamps 00:00 – Intro 00:45 – Bitcoin Privacy and the OP_CAT Proposal 03:18 – Technical Challenges of Adding New Opcodes 07:37 – Politics and Culture of Bitcoin Upgrades 28:46 – Quantum Computing Meets Bitcoin 37:48 – How Governments View Quantum Risk 39:06 – Breaking Down BIP 360 for Developers 42:03 – Post-Quantum Signature Schemes Explained 45:18 – Trade-offs in Quantum Security for Bitcoin 53:16 – Community Reactions to BIP 360 01:00:23 – The Future of Bitcoin in a Post Quantum World

Isabel Foxen Duke⚡️

13,231 views • 8 months ago

BITCOIN RAILS #38: Two Forces That Could Break Bitcoin: AI vs Quantum I with Martin Shkreli 🔗 YOUTUBE: 🌿 SPOTIFY: A couple months ago, I co-hosted an X space with LayerTwo Labs re: “Should Bitcoiners care about quantum computing?” You can imagine our surprise when (in?)famous tech investor Martin Shkreli arrived to share that he’s been researching this very question for years… and dropped that he’s been personally considering raising funds to hire a team of mathematicians to hack Satoshi’s Coins. In this episode, Martin and I explore the limits of Bitcoin’s security model and the two forces he believes could potentially challenge it: a computational path driven by advances in quantum hardware, and/or a mathematical path fueled by AI-assisted discovery. This interview additionally shares takes on: - Why hacking Bitcoin would be the "ultimate" mathematical achievement—and why hacking Satoshi’s coins should be considered a “bug bounty” for Bitcoin - Why quantum may be more problematic for Bitcoin than for the traditional tech world (e.g. why quantum doesn’t likely threaten NVIDIA) - The little known history of Bitcoin’s “overflow bug” (yup, Bitcoin *has* been hacked before… an exploit corrected by hard fork). - And of course, why mathematicians do their deepest work in prison 😉 As always, this episode of Bitcoin Rails can be viewed on YouTube or Spotify via the link available in my bio—and is brought to you with the help of my incredible partners: - Best In Slot (Best in Slot | BRC2.0 🧑‍🍳) – the leading API for Ordinals and BRC20 data aggregation and indexing - Spark (Lightspark) – a statechains implementation leading the path towards institutional adoption of Bitcoin-powered payments - Citrea (Citrea) – the leading Bitcoin rollup technology and contributor to the BitVM alliance 📷 Timestamps 00:00 Intro 02:57 Quantum Supremacy and Google’s Breakthroughs 05:02 Bitcoin’s Cryptographic Vulnerabilities 08:24 Studying Math and Cryptography Behind Bars 20:04 Governance and the Culture of Bitcoin Development 26:29 The Future of Quantum and AI in Cryptography 37:42 Hardware Challenges and Fidelity in Quantum 47:57 Game Theory and the Quantum Race 01:04:08 Bitcoin Recovery and the Quantum Security Question 01:08:38 Mathematical Challenges in Breaking Cryptography 01:15:08 The Role of AI in Future Mathematical Breakthroughs

Isabel Foxen Duke⚡️

62,881 views • 7 months ago

BITCOIN RAILS EPISODE #18: MAKE BITCOIN QUANTUM RESISTANT | with BIP360 author Hunter Beast Hunter Beast 🕯️ Quantum computing is a complicated topic—one that incites equal amounts of fear and skepticism depending on who you talk to… especially in Bitcoin. In this episode, BIP360 author Hunter Beast wisely shares why the “truth is likely somewhere in the middle,” citing incremental advancements in quantum computing that may eventually pose a legitimate threat to some Bitcoin addresses—as well as steps we can take to protect ourselves in the short, medium and long term. The correct posture is to “be prepared, not scared,” says Hunter Beast 🕯️ Ultimately, the introduction of quantum resistant cryptography—via proposals like BIP360—will be needed for higher degrees of security. That said, individuals can mitigate personal risk substantially through proper address-use hygiene. This episode breaks down the specific challenges Bitcoin will face in the event of a quantum attack, the likelihood of an attack over time, and the steps we’ll need to take at the individual and communal level to ensure Bitcoin’s safety. This episode includes detailed discussion of: 1) How quantum computing could potentially affect Bitcoin public/private key cryptography—and technologies built on vulnerable addresses (e.g. Taproot) 2) Best practices for protecting yourself against quantum in the short and long term 3) Implications of vulnerable address types—e.g. what about Satoshi’s coins? 4) Deep Dive into BIP360 + proposed long-term solutions 5) Industry roadmaps for quantum computing + how banks and governments are preparing for “Q Day” As always, this episode can be viewed on Spotify or YouTuve—full episode in the comments or linktree in my bio. This episode is powered by Best In Slot—the leading API for Ordinals and BRC20 data aggregation and indexing. TIMESTAMPS: 00:00 Intro 02:05 What is quantum computing? 04:30 How could quantum threaten your Bitcoin wallet? 06:50 Addresses that are safe from quantum 09:13 Satoshi’s coins are in danger! 11:25 What happens if Satoshi’s coins are touched? 14:45 Do we softfork to shield Satoshi’s coins? 16:38 “Transitory inflation” for bitcoin after quantum 21:05 Why Taproot addresses are vulnerable 23:50 Do NOT reuse your Bitcoin addresses! 26:03 When will Quantum become a threat? 28:34 The long/short exposure attack; explained 31:45 Protection using private mempools 33:20 Why all the new Bitcoin L2s are in danger 37:45 Quantum is 5 to 10 years away, governments fear 40:34 Non-Bitcoin systems threatened by quantum 42:26 Centralized systems can adapt to quantum 43:50 Hunter’s BIP: Post quantum cryptography in Bitcoin 47:40 Hunter’s three new signature algorithms 53:48 Is new cryptography on Bitcoin risky? 56:33 Why not just stick to hash-based cryptography? 58:49 A 16X discount for quantum resistant addresses? 01:02:30 Creating quantum resistant multisig addresses 01:04:00 What is Frost? 01:06:50 The long process of approving a BIP 01:08:30 What developers think of Hunter’s BIP 01:10:00 Matt Corallo’s concerns with Hunter’s approach 01:11:00 Steps to implementing the BIP 360 01:17:00 Where to learn more about BIP 360 01:17:50 Who can push the button to change Bitcoin?

Isabel Foxen Duke⚡️

31,102 views • 1 year ago

BITCOIN RAILS #61: QUANTUM CRYPTOGRAPHY FOR BITCOIN | with Dan Boneh Dan Boneh 🔗 YOUTUBE: 🌿 SPOTIFY: One of the most prolific and influential cryptographers in the world, it’s difficult to fully quantify the impact that Dan Boneh has had on Bitcoin and digital assets more broadly. Through both his own research and his mentorship of some of the space’s most important contributors — e.g. Andrew Poelstra, Benedikt Bünz ☕️, and Robin Linus — few people have done more to shape the cryptographic foundations underlying modern blockchains and digital finance. More recently, Dan co-authored Google's widely discussed paper, “Securing Elliptic Curve Cryptocurrencies against Quantum Vulnerabilities,” which reduced prior estimates of the resources required to run Shor’s algorithm against the elliptic-curve cryptography used by Bitcoin. The paper reignited debate around quantum computing timelines and the long-term security assumptions behind modern cryptocurrencies. In this episode of Bitcoin Rails, Dan and I discuss the current state of quantum computing, its potential implications for Bitcoin, and how he believes the Bitcoin community should think about preparing for a post-quantum future over the coming decade and beyond. And yes, Dan shares his take on the “when quantum” question in the interview, among other key perspectives. This episode of Bitcoin Rails is brought to you by my NEW sponsors: LayerTwo Labs LayerTwo Labs — developing research, software, and technologies for scaling Bitcoin via the integration of Drivechains (BIP 300/301) Hashi on Sui — a primitive for executing Bitcoin Defi transactions, without having to trust a federated bridge or other centralized entity BitBox BitBox — an open-source Bitcoin-only hardware wallet, with smooth UX and no compromises on security. Check out Bitbox [dot] swiss and use code BITCOINRAILS to get a discount TIMESTAMPS: 00:00 — Intro and Dan’s history with cryptography and Bitcoin 11:44 — Shor's algorithm: how a 1994 paper became cryptography's most important threat 16:39 — Building a quantum computer: superconducting qubits vs neutral atoms 25:37 — When should we start worrying about quantum computers? The timeline debate 31:51 — Have we already reached quantum computing's “ahá” moment? 39:09 — Inside the Google paper: how Shor's algorithm was optimized 49:57 — The Bitcoin mempool attack and the 10-minute window 59:21 — Mitigation: what should Bitcoin do to prepare for quantum? 1:11:54 — Hash-based vs lattice-based signatures: Dan's case for lattice 1:23:15 — ZK proofs, BIP361, and what to do with Satoshi's coins 1:31:52 — Encrypted mempools and MEV 1:38:29 — Why Bitcoin will survive quantum and Dan's message to Bitcoin builders

Isabel Foxen Duke⚡️

74,506 views • 14 days ago

BITCOIN RAILS #50: HISTORY OF SEGWIT & TAPROOT | with Pieter Wuille 🔗 YOUTUBE: A primary maintainer of Bitcoin Core from 2011-2022, Pieter Wuille is arguably the most influential developer in Bitcoin’s history since Satoshi himself. After receiving keys to the Bitcoin codebase from Gavin Andresen, who was tasked with maintaining the codebase by Satoshi Nakamoto, Pieter went on to implement some of Bitcoin’s most dramatic and influential upgrades, including but not limited to: - Implementation of Bitcoin’s Taproot and Segwit upgrades - Implementation of libsecp256k + Bitcoin’s unique encoding structure for the cryptography securing all Bitcoin public/private keys - The first import/export feature for Bitcoin private keys into Bitcoin (now Bitcoin Core) - Development of hierarchical deterministic (HD) wallets, enabling backups via a single seedphrase and paving the way for seedphrases themselves - DER signatures, Miniscript, and so much more A truly special episode of Bitcoin Rails, this is a rare long-form interview with one of the most important historical figures in the arc of Bitcoin’s development. Pieter and I walk through how Bitcoin consensus works in practice, the history of Bitcoin's most critical early developments, and the key role of his good friend, Greg Maxwell, nearly every step of the way. This episode of Bitcoin Rails is powered by: — Best In Slot (Best in Slot | BRC2.0 🧑‍🍳) - the leading API for Ordinals and BRC-20 data aggregation and indexing. — Spark (Lightspark) - a statechains implementation advancing Bitcoin-powered payments. — Citrea (Citrea | Mainnet Live 🍊🍋) - a leading Bitcoin rollup technology and BitVM alliance contributor. TIMESTAMPS: 00:00 Intro 00:42 Early Days in Bitcoin 01:25 First Contributions to Bitcoin Core 04:38 Challenges and Innovations in Bitcoin Development 06:54 The Hal Finney Challenge 12:16 Bitcoin Core Contributors Back Then 14:18 The Creation of HD Wallets and Seed Phrases 17:47 Greg Maxwell Role and Relationship 21:00 Implementing Libsecp256k1 28:39 Why Did Satoshi Choose ECDSA 33:34 Addressing OpenSSL Issues 40:41 Why Pieter Wrote BIP 66 47:54 BIP 103 Proposal and Initial Reactions 49:57 SegWit Development and Implementation 01:05:39 Taproot's History, Details, and Benefits 01:11:09 Why Taproot Has No Hashed Addresses 01:16:55 Pieter's Thoughts on BitVM and other non-softfork dependent scaling solutions cc Robin Linus 01:18:27 Non-Soft Fork Scaling Solutions 01:23:03 Future Consensus Changes and Challenges 01:25:28 Bitcoin's Miner Centralization and Security Concerns (e.g. MEV) cc Matt Corallo 🟠 01:34:48 Miniscript: Simplifying Bitcoin Script? cc Rob Hamilton

Isabel Foxen Duke⚡️

43,145 views • 3 months ago

BITCOIN RAILS #41 | Bitcoin Native Staking: When Trust Becomes the Bottleneck | with Babylon founder David Tse 🔗 YOUTUBE: 🌿 SPOTIFY: “99% of Bitcoin is held idle, not because of lack of interest, but because of lack of trust.” Not long after Ordinals (and BRC20) revitalized the “Bitcoin DeFi” narrative, Babylon seemingly leapt onto the scene with what felt like overnight success – locking several billion dollars of TVL in its “trustless Bitcoin staking” protocol. With some of the most interesting advisors and contributors in the space (...seriously, what other projects can claim both domo and яobin linus as collaborators?), Babylon quickly became a “BTC-Fi” Goliath – converting both Bitcoin Season 2 types and formerly staunch ETH maxis alike. In this episode, I sit down with creator David Tse to get the protocol's birth story - and learn how POS staking became the first truly trustless Bitcoin DeFi application in the world. In this episode, we cover: - Why smaller POS chains need better security… and how Bitcoin liquidity may be the answer to securing experimental chains in smaller ecosystems - How David’s former experiences in the Cosmos ecosystem informed the core thesis of using Bitcoin to secure smaller chains - A quick breakdown of Babylon’s staking architecture - and what exactly makes it “trustless” - Babylon’s relationship with BitVM, and the team’s lesser-known contributions to both BitVM2 and BitVM3 (Fun Fact: David Tse is яobin linus's PhD advisor at Stanford 🧑‍🎓) - Why Bitcoiners didn’t want to stake their Bitcoin for yield until now... and how the "trustlessness" thesis is already panning out (with 1 whale dropping a whopping 10K Bitcoin in the protocol just a few months back!) Bitcoin Rails is powered by: - Best In Slot (Best in Slot | BRC2.0 🧑‍🍳) — the leading API for Ordinals and BRC-20 data aggregation and indexing. - Spark (Lightspark) — a Statechains implementation advancing Bitcoin-powered payments. - Citrea (Citrea) — the leading Bitcoin rollup technology and BitVM alliance contributor. 📌 Timestamps 00:00 Intro 00:38 Bitcoin++ Insights 01:52 David’s Background and Information Theory 05:34 Journey into Bitcoin and Blockchain 07:34 Scaling Bitcoin with Prism Protocol 10:38 Babylon and Cosmos Ecosystem 13:51 Bitcoin Staking and Security Mechanisms 24:49 The Importance of Reputation in Crypto 25:51 Partners and Announcements Break 27:25 Profile of Babylon Stakers 29:17 The Grand Vision for Babylon 32:40 Garbled Circuits and Secret Revelation 44:05 Trustless Bitcoin Vaults and Future Prospects

Isabel Foxen Duke⚡️

15,937 views • 6 months ago

BITCOIN RAILS #59: Post-Quantum Bitcoin Signatures (+ their tradeoffs) | with BIP 360 co-author Ethan ✨ is on BlueSky✨ Heilman 🐱 and Blockstream Head of Research Jonas Nick 🔗 YOUTUBE: 🌿 SPOTIFY: According to BIP 360 co-author Ethan Heilman, Bitcoin needs a minimum of two soft forks to become quantum resistant: P2MR (or an output type that can safely execute PQ signatures) + a post-quantum checksig (signature scheme). Ethan and the BIP 360 team (including myself and Hunter Beast 🕯️) introduced the P2MR part via a BIP 360 update late last year—but the question remains, what’s the most appropriate PQ signature scheme for Bitcoin? They all have substantive tradeoffs, but hash-based signatures seem to be leading technical discourse—likely due to recent optimizations by Jonas Nick and the broader Blockstream research team. It was an honor to sit down with both of these men - arguably the two most influential and productive cryptographers in Bitcoin quantum mitigation right now - for an in-depth review of the leading PQ signature schemes and a temperature check on Bitcoin’s post-quantum planning process. TBH, if you want to skip the noise and jump straight to the signal on quantum, this is the interview to watch. In this episode, we discuss: - What needs to happen at the soft fork, infra, and mitigation levels to fully quantum-harden Bitcoin - Recent updates to BIP 360 + breakdown of the leading hash-based signatures schemes for Bitcoin (SHRINCS + SHRIMPS) - Why we may actually get consensus around a stateful scheme for Bitcoin - Comparisons of hash-based signatures vs Lattice and Isogeny-based schemes - Assessing the risks of both waiting too long and acting too fast (and why quantum is a better threat to be facing than a potential classical attack) This episode of Bitcoin Rails is brought to you by my NEW sponsors: - LayerTwo Labs LayerTwo Labs — developing research, software, and technologies for scaling Bitcoin via the integration of Drivechains (BIP 300/301) - Hashi on Sui — a primitive for executing Bitcoin Defi transactions, without having to trust a federated bridge or other centralized entity - BitBox BitBox — an open-source Bitcoin-only hardware wallet, with smooth UX and no compromises on security. Check out Bitbox [dot] swiss and use code BITCOINRAILS to get a discount TIMESTAMPS: 00:00 Intro 02:18 Ethan’s Quantum Wakeup 05:18 How Blockstream Enters Post Quantum 09:25 BIP 360 Explained 12:11 How Bitcoin Transitions to PQ 17:35 Choosing Post Quantum Signatures 23:20 How Blockstream Created SHRINCS 27:22 Signature Budgets Importance Explained 41:13 What are SHRIMPS? 44:51 SHRIMPS vs SHRINCS 47:48 Why SLH-DSA Alone Won’t Cut It 49:24 Is a SHRIMPS + SHRINCS BIP Coming? 51:51 Blockstream’s Big Plans for Liquid 59:04 Quantum Readiness Roadmap 01:02:22 Importance of a PQ Recovery Plan 01:05:35 How Long Would a PQ Migration Take 01:11:17 Quantum Watchlist Recommendations

Isabel Foxen Duke⚡️

23,783 views • 29 days ago