Mentor Sessions Ep. 087: Simon Dixon breaks down the Coldcard hack, BIP-110 chain split fallout, node vs miner power, and Bitcoin self-custody security in 2026.PART 1: Simon Dixon & Doomberg - https://youtu.be/Q0P0X7j_kcA Over $100 million in Bitcoin vanished in the Coldcard entropy bug — and days later a chain split ended with the nodes defeated and Bitcoin more centralized than before. Simon Dixon joins Nathan to trace what really happened.This is the deep-dive follow-up to the Doomberg conversation. You'll learn why Simon now treats every incident as an attack "guilty until proven innocent," how the BIP-110 resistance became the most successful node mobilization since the block size war yet still failed to move the mining pools, and why he refuses to die on a hill that ends in an altcoin. You'll see how the Coldcard low-entropy vulnerability, Zeus, Boltz and BTCPay attacks fit one pattern, and hear a clear framework for rebuilding your self-custody with dice-rolled entropy, multisig, and active participation. Simon and Nathan also unpack developer centralization, the loss of Knots as a competing implementation, and why sovereignty is proof of work you can't outsource.⏱️ Timestamps:0:00 - Intro0:24 - Resuming After Doomberg Discussion0:55 - Infrastructure Attacks on Coldcard and Others1:32 - BIP-110 and Resulting Chain Split1:50 - UASF and Block Size War History2:50 - Tether Fees and Scaling Debates4:02 - Barry Silbert and SegWit2x Deal4:51 - Nodes Defeating Miners in Past Wars6:02 - Role Reversal With Core Changes7:35 - Running Knots to Support Resistance8:20 - Developer Centralization Concerns Rise10:14 - BIP-110 Failure and Altcoin Stance11:39 - Knots Node Adoption Surge to 20%12:08 - Infiltration Risks and Verification12:54 - Can Node Minority Influence Miners14:19 - Consensus Changes Remain Extremely Difficult17:16 - More Centralized Yet Wiser After Events18:13 - Social Fallout Losing Ocean and Knots22:15 - Check Ego and Welcome Others Back25:21 - Stay Suspicious While Shaking Hands27:34 - Abundant Mines Mining Hosting28:29 - Coldcard Low Entropy Bug Details30:16 - Hack Impact on Bitcoin Purists31:36 - Difficulty Spending Stolen Bitcoin32:37 - Fed Recruitment via Stolen Coins33:23 - Learn Entropy and Generate Secure Keys36:03 - Assume Attack and Identify Beneficiaries37:44 - Self Custody Sovereignty Comes at Cost39:55 - Bitcoin Requires Active Participation43:37 - Coordinated Message in All Attacks45:14 - Final Advice Skepticism and Focus🔗 Links & Resources→ Simon Dixon on X: https://x.com/SimonDixonTwittThis is part one — subscribe so you don't miss part two where we go deep on the Bitcoin infrastructure attacks.🔔 Subscribe for weekly Bitcoin Podcasts🐦 Follow on X: https://x.com/BTCSessions🐦 Follow on X: https://x.com/theBTCmentor⚡Sovereign Sessions — AI, Privacy, and Bitcoin education: http://youtube.com/@SovereignSessions?sub_confirmation=1💡BOOK Private Sessions with Nathan, Benn and the BTC Mentor Team: Master self-custody, hardware, multisig, Lightning, privacy, and more. 👉 Visit btcmentor.io ⚡ POWERED by Abundant Mines: Fully managed Bitcoin mining. Learn more at https://qrco.de/bgYKPB#Bitcoin #BTC #BTCSessions #SimonDixon #BIP110 #ColdCard #SelfCustody #BitcoinKnots #NodeRunning #LightningNetwork #BitcoinSovereignty #BlockSizeWar #HardwareWallet #DontTrustVerify #BitcoinHack #BitcoinFork #HardFork