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Bitcoin Explained - The Technical Side of Bitcoin
Bitcoin, Explained 101: The Coldcard Hack
By Van Wirdum Sjorsnado
Aired Aug 26, 2026 · 1h 5m · Last boosted 3d ago
Chapters
Show Notes
Further reading: https://wizardsardine.com/blog/coldcard-rng-vulnerability/ https://engineering.block.xyz/blog/predictable-rng-fallback… Aaron’s Nostr: npub1art8cs66ffvnqns5zs5qa9fwlctmusj5lj38j94lv0ulw0j54wjqhpm0w5 Sjors’ Nostr: npub1v25jqj332n630klwtqeqxgyrjl4alw4phmluhu2x6lcxzwy9m03suqexw3
Nostr Boost Stats
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Thanks from https://coinjoin.nl
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A million times yes.
Thank you for addressing this in the right way. You're one of the only podcasts that hasn't responded to Coinkite with yet more bad options.
Very much excited that Learning Bitcoin From The Command Line is getting a new edition too -- long overdue.
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Re:other nodes and making news, you're clearly not watching Eric Voskuil on Twitter. Libbitcoin 4 just did IBD in 14 minutes on a consumer connection (with assumevalid height of 950k) and 55 min for full validation. Older than Knots, and older than Core being called, well, Core.
They slept for a good few years but are waking up with a vengeance.
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Thanks for removing the friction from consuming Mises.
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Welcome back Walker, congrats on the bigger family
Also, xpubs will only give unhardened addresses.
That said, I expect a Venn diagram of people who didn't roll dice and people using hardened addresses is probably two separate circles.
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This is sweet, thanks for covering this. Been getting excited listening to @npub1v25jqj332… talk about Stratum v2 for a while now. Nice to see it in action.
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Welcome back
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The cloak and dagger shit with Switck is heating up. People were already looking for a reason for this to be inside. Still not totally convinced but it looks sketchy as fuck.
Never been more glad I had fun playing dice games with my bitcoin.
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Boston Bitdevs is coming up on July 30 at MIT Building 4. Be sure to RSVP through bostonbitdevs.org (or with the link if David wants to put it in notes).
https://app.evento.so/e/evt_3M48gmwDKdbzNc63
Come with questions!
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Welcome back! Your break sounds like it was good. Missed your updates.
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A hung jury isn't an acquittal, it's a mistrial. Jurors aren't voting, they're deliberating to arrive at consensus. If they can't, it's a do over.
Double jeopardy only applies if a verdict is reached.
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Your analogy is odd given that the twentyfirst amendment struck the 18th amendment from the constitution...
The issue with 110 is that it was ineffective and targeting an issue that barely qualifies as one. 4 MB is 4 MB.
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The point of airgapping isn't that QR'sbor SD cards are inherently more secure than USB or Bluetooth. It's that the amount of data is far more limited and easier to audit with lower tech methods.
If you ask me floppy disks would be even better, as SD cards have firmware that could be an attack vector. But floppies are prohibitively hard to implement in 2026.
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'Anything is safer than a coldcard' is not entirely accurate, especially if you're one of the fence cases. Malware hot wallets are having a field day. Saw one user lost 6.07 BTC on mobile 'wasabi' wallet which of course was fake.
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Some of the best presentation of the issue I've encountered. Education not recommendations.
The multisig evangelists are dangerous, and the guy who hosts the exchange is telling us to self custody.
Man of the People @npub1cn4t4cd78… .
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It turns out Leopold was NOT the biggest story of the day @npub1ahe2832lq… .
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Guy with half a brain still listening reporting in 😂
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I'm thinking the four year cycle is not as there as some have said. Stephen Perrenod has some great writings and math to go with it on some harmonics describing oscillations around the power law trend that seem to make more sense when thinking about fundamental factors. And it follows log time, with the last peak in 2017 and the next in 2027. There are sub harmonics, hence oscillations in between. The fun thing is, it captures the 2011 run up too...
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So glad we finally got some weigh in here on the silliness that is 110.
And yea, probably was a low blow last time I asked you about this topic on zoom Natalie...
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