Top all-time · #5354
COINKITE Blog
Company blog · blog.coinkite.comsecurityhardwarebusiness
COINKITE Blog is the company blog at blog.coinkite.com, writing about security, hardware and business. Since 2013, 15 different Hacker News readers have linked it 48 times, most often “Ongoing Bitcoin Malleability Attack (Low S / High S)”. It is still writing: the last post was on 2026-10-26, and you can follow it by feed.
Too few sampled comments (4) to say how often HN recommends it.?
Why HN links it
HN commenters link Coinkite's company blog for its Coldcard hardware wallet security advisories, a multisig co-signing launch, and older posts on Bitcoin point-of-sale hardware. The comments only cite or link the posts.
Summarised by Claude from a sample of 4 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.
Stay up to date with Coinkite — COLDCARD, Opendime, Tapsigner, Blockclock. Firmware releases, security research, and Bitcoin cold storage.
Most-linked posts?
- Ongoing Bitcoin Malleability Attack (Low S / High S)3 people · 3 mentions · first linked 2015-10-02
- Coldcard Mk3 security advisory: seeds from firmware 4.0.1 onward may be at risk3 people · 3 mentions · first linked 2026-07-30
- Technical Deep Dive into the Entropy Issue2 people · 2 mentions · first linked 2026-07-31
What Hacker News says?
I don't have any BTC on hand, so I genuinely don't know. The barista I spoke with mentioned that they get four or five transactions per week, and they had a physical POS terminal for Bitcoin transactions, similar to the one CoinKite was producing a few years ago: http://blog.coinkite.com/post/76526284739/did-you-know-that-...
Comment linking /post/76526284739/did-you-know-that-with-the-coinkite-terminal-you
on “Bitcoin passes 10,000 USD”Submitted Launching Co-Sign Pages and M-of-15 Multisig API as a story · 24 points
HN discussionI've always told people in the past the Coinkite's model - trust Coinkite to handle security for you - has a valuable place in the Bitcoin ecosystem, however it's certainly not for everyone. I personally use Coinkite to store a portion amount of my Bitcoin savings as a diversity measure, but I'd never trust them with everything. But this new multisig support gives you the option to have the best of both worlds: Coin…
Comment linking /post/85842528071/peter-todd-joins-coinkite-as-chief-naysayer
on “Launching Co-Sign Pages and M-of-15 Multisig API”Submitted Nyms: Anon Personas and Payment Pages for All as a story · 11 points
HN discussion- Here is a link to a guide on setting it up http://blog.coinkite.com/post/116127008376/ - More information about the multisig setup http://blog.coinkite.com/post/102291566521/ - And some info about the multisig/co-sign API http://blog.coinkite.com/post/103555747636/
Comment linking /post/103555747636/
on “Implementing a trustless security with hardware wallets and multisignature”Submitted Send Bitcoin by SMS Worldwide as a story · 7 points
HN discussionColdcard Security Advisory: https://blog.coinkite.com/coldcard-mk3-seed-generation-warni...
Comment linking /coldcard-mk3-seed-generation-warning/
on “Coldcard's $38M (so far) exploit shakes faith in self-custody”Submitted Show HN: Public Obelisk Server for the Community as a story · 6 points
HN discussionHopefully we will make that even crazier with http://coinkite.com bitcoin terminals, as anyone will be able to operate in BTC. We bought our office coffee in btc http://blog.coinkite.com/post/63374862563/weve-just-ordered-...
Comment linking /post/63374862563/weve-just-ordered-some-coffee-beans-for-the
on “Bizarre things you can buy with Bitcoin”Submitted Show HN: Bitcoin Wallet-as-a-Service as a story · 6 points
HN discussionHere is the official blog post about it http://blog.coinkite.com/post/119362064671
Comment linking /post/119362064671
on “Show HN: BitcoinDial – Make Calls with Bitcoin”Submitted Bitcoin wallet service Coinkite closing down as a story · 5 points
HN discussionVendor advisory post: https://blog.coinkite.com/coldcard-mk3-seed-generation-warni... Technical deep dive: https://blog.coinkite.com/entropy-technical-backgrounder/
Comment linking /entropy-technical-backgrounder/
on “Low Entropy Vuln on Coldcard Mk3 Hardware Wallets, 1082.58 BTC Drained”Submitted Ongoing Bitcoin Malleability Attack (Low S / High S) as a story · 5 points
HN discussionSubmitted Multisig Done Right: Launching Co-Sign Pages and Multisig API (M-of-15) as a story · 5 points
HN discussionSubmitted Python Code for Offline Transaction Signing (P2SH, M-of-15) as a story · 4 points
HN discussionSubmitted Coinkite Has an Onion for Tor as a story · 4 points
HN discussionSubmitted Coldcard Mk3 security advisory: seeds from firmware 4.0.1 onward may be at risk as a story · 3 points
HN discussionSubmitted Spells of Genesis has raised over 860 Bitcoins using Coinkite Multisig as a story · 3 points
HN discussionSubmitted Bitcoin Payment Buttons and Pages. Secure, Safe, Private as a story · 3 points
HN discussionSubmitted BitKit, the Coinkite Bitcoin API, Now on Tor Network as a story · 3 points
HN discussionSubmitted CloudFIRE – Open-Source Replacement for Cloudflare as a story · 3 points
HN discussionSubmitted Open-Source Paper OTP Generator as a story · 3 points
HN discussionSubmitted Bitcoin Escrow Payments with Coinkite Multi-Signature as a story · 2 points
HN discussionSubmitted Ledger and Coinkite Smart-Cards with Multi-Signature for Even More Security as a story · 2 points
HN discussionSubmitted Tutorial: How to Import and Spend Bitcoin Paper Wallets as a story · 2 points
HN discussionSubmitted The Bitcoin Payment Terminal as a story · 2 points
HN discussionSubmitted AI review missed Coldcard flaw as a story · 1 points
HN discussionSubmitted Technical Deep Dive into the Entropy Issue as a story · 1 points
HN discussionSubmitted COLDCARD Mk3 Security Advisory as a story · 1 points
HN discussion
