Episode
Rehypothecation Is Cryptographically Impossible — Martin Matejka, Firefish CEO
- Podcast
- The Bitcoin Matrix
- Published
- Jun 9, 2026
- Duration seconds
- 2164
- Processing state
not_requested- Canonical source
- https://fountain.fm/episode/eapfVCfbUZtaCmjE7Deh
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Summary
"Rehypothecation is cryptographically impossible." Martin Matejka joins the show to break down the rise of Bitcoin-native lending, Firefish's 3-of-3 multisig + DLC architecture, and why the February 6 stress test was the day Bitcoin-backed credit grew up. We discuss why rehypothecation can be engineered out rather than promised away, how Firefish thinks about LTV, margin-call cadence, and the three warnings before liquidation, and why $160 million in non-custodial loans across 27,000 users in 70 countries is the proof a Bitcoin-native lender can scale. Subscribe so you never miss an episode. 🎙️ GUEST Martin Matejka, Co-founder & CEO of Firefish → firefish.io Firefish on X → x.com/Firefish_io 💰 SPONSORS & DISCOUNTS 🐟 Firefish — Don't sell your Bitcoin. Live off it. Non-custodial Bitcoin-backed loans. Your keys stay in 3-of-3 multisig. Rehypothecation is cryptographically impossible. $160M+ facilitated. 27,000+ users across 70 countries. firefish.io/?ref=MATRIX | code MATRIX 🔑 Stamp Seed — Between 3-6 million Bitcoin are lost forever. Most of it paper. Hammer your seed words into solid titanium — fire-resistant to 3,000°F. 15% OFF stampseed.com | code MATRIX 🟠 Club Orange — The location-based social network built for the Bitcoin community. Find Bitcoiners, meetups, and merchants near you. Download in the App Store or Google Play. cluborange.org/matrix-podcast 🏕️ Camp Nakamoto — Bitcoin summer camp. Private island. Lake Winnipesaukee, NH. June 18-21. I'll be speaking there. 15% OFF campnakamoto.com | code MATRIX 🔐 Unchained — 90,000+ BTC secured in collaborative multisig since 2016. Bitcoin-only. Never lent out a sat. IRAs, loans, inheritance planning. 10% OFF unchained.com/matrix | code MATRIX10 💎 River — Buy Bitcoin the right way. Up to $100 FREE Bitcoin. river.com/matr…