# S17 E23: Hunter Beast & Mark Karpelès on Bitcoin's Quantum Upgrade

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Text version: https://stenobird.com/podcast/bitcoin-takeover-podcast-724392/s17-e23-hunter-beast-mark-karpel-s-on-bitcoin-s-quantum-upgrade.md
Podcast: [Bitcoin Takeover Podcast](https://stenobird.com/podcast/bitcoin-takeover-podcast-724392)
Published: 2026-05-10T05:55:00+00:00
Episode link: https://bitcoin-takeover.com/audio/?name=2026-05-10_s17_e23_hunter_beast_mark_karpeles_on_bitcoin_quantum_resnstance_ecash.mp3
Audio file: https://bitcoin-takeover.com/audio/media/2026-05-10_s17_e23_hunter_beast_mark_karpeles_on_bitcoin_quantum_resnstance_ecash.mp3
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Duration seconds: 3861

## Resource

Hunter Beast is the author of BIP360, the most popular proposal to add quantum resistant signatures to Bitcoin. Mark Karpelès is the former CEO of Mt. Gox and the creator of Tiban wallet. In this episode, they talk about the looming quantum threat. Time stamps: 00:00:56 Introducing Hunter Beast 00:02:38 Hunter Beast's New Role at Surmount Systems and Quantum Urgency 00:05:28 The Timeline for a Quantum Upgrade 00:07:07 The Need for a Concrete Technical Process 00:09:36 Surmount Systems' Fundraising and Mission 00:12:30 What is Surmount Systems? 00:15:09 Mark Karpeles Joins the Conversation 00:16:31 Lessons Learned from Mt. Gox 00:19:18 Quantum Resistance and BIP32 HD Wallets 00:25:22 The Debate on Satoshi's Coins 00:29:09 Timelines for Phasing Out Old Signatures 00:32:24 Long vs. Short Exposure Quantum Attacks 00:33:36 The US Government and Quantum Computing 00:36:59 Quantum Resistance in Other Blockchains 00:42:05 Bundling Upgrades with Quantum Resistance 00:48:26 Bitcoin's Role in Separating Money and State 00:50:06 The Upcoming Ecash Fork 00:53:47 Mark Karpeles at the Conference: a Magic: The Gathering tournament 00:57:07 Mark's New Wallet Project: Tiban, Using Threshold Signatures 01:02:03 Mark's First Time in the USA

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