Episode
Is Rolling Your Own Entropy The New Standard? (Coldcard Q&A P1)
- Podcast
- Bitcoin Audible
- Published
- Sep 3, 2026
- Duration seconds
- 1330
- Processing state
not_requested- Canonical source
- https://fountain.fm/episode/RZ5nt9RBqnyOL13HAZip
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Summary
In this Guy's Take, I walk through listener questions and comments on the Coldcard random number generation failure and what it really means for Bitcoin self-custody. We dig into why the RNG bug went unnoticed for years, the difference between source-available and truly open source hardware, and how dice rolls and strong passphrases change your threat model. I also share how I’m thinking about safer setups going forward. Chapters (00:00:00) - Why Coldcard Questions Remain (00:01:18) - Features vs Core Failure (00:03:19) - Speed Over Security Risk (00:04:54) - Car Without An Engine (00:06:06) - RNG Paths And Failsafes (00:08:32) - Open Source Trap (00:10:36) - Dice Rolls And Passphrases (00:14:30) - Rolling Your Own Entropy (00:16:21) - Using Coldcard As Signer (00:17:48) - Key Takeaways Affiliate Links Become sovereign, hold your keys, be censorship resistant with the Bitbox hardware wallet. Get 5% off everything in the store with code GUY (Link: https://bitbox.swiss/guy/ ) Get 10% off the best Bitcoin board game in the world, HODLUP! Or any of the other great games from The Free Market Kids! Use code GUY10 at checkout for 10% off your cart! (Link: https://www.freemarketkids.com/collections/games-1 ) Host Links Guy on Nostr (Link: http://tinyurl.com/2xc96ney ) Guy on X (Link: https://twitter.com/theguyswann ) Guy on Instagram (Link: https://www.instagram.com/theguyswann ) Guy on TikTok (Link: https://www.tiktok.com/@theguyswann ) Guy's Takes on YouTube (Link: https://www.youtube.com/@GuysTake ) Guy Swann on YouTube (Link: https://www.youtube.com/@theguyswann ) Bitcoin Audible on X (Link: https://twitter.com/BitcoinAudible ) The Guy Swann Network Broadcast Room on Keet (Link: https://tinyurl.com/3na6v839 )