BLOCKCLOCK™ is a #Bitcoin data display by @Coinkite, makers of @COLDCARDwallet, @OPENDIME & @BitcoinBackup - for help email [email protected]blockclock.comJoined August 2018
COLDCARD is yours to verify, modify, and run. 👨💻
Learn how to change the open-source firmware, test it in the simulator, build a development-key DFU for Mk4/Mk5 or Q, and install it on a dedicated device.
blog.coinkite.com/build-run-cust…
Thanks to everyone who came out last night for the Toronto @btcplusplus satellite event!
Congrats @hashandcoin on winning the @theBLOCKCLOCK raffle! 🎉
Special thanks to @Coinkite for sponsoring.
Meet arca🌐🔐
A physical digital safe that gives your most important secrets a dedicated home instead of leaving them scattered across devices, cloud accounts, & paper notes
Founders Edition reservations are now open
store.coinkite.com/store/arca-pdh…
learn more blog.coinkite.com/arca-reservati…
Secure your Ledger with COLDCARD.
Instead of generating a recovery phrase on your Ledger, derive a BIP85 child seed on your COLDCARD completely airgapped, then restore it to your Ledger.
Your Ledger gets its own independent wallet, while your COLDCARD remains the source.
Just got your first COLDCARD?
Try pairing it with @covewallet.
Super clean interface, easy setup, and a smooth workflow for sending and receiving Bitcoin.
Great place to start when learning self-custody. 🔐⚡️
Announcing something big!
@COLDCARDwallet Q Giveaway
@AnchorWatch will soon be supporting COLDCARD as part of our vault offering... so we're giving one away.
How to enter:
• Follow @AnchorWatch & @COLDCARDwallet
• Repost
• Reply with your favorite COLDCARD feature.
Bitcoiners have been waiting for this.
Our #BitcoinBlackFriday sale is LIVE 🔥
🔸 25% off when paying with BTC
🔸 20% off when paying with fiat
🔸 $50 off BLOCKCLOCK Mini
While supplies last.
@ronnyavendano_ from the @tbhs_sv has always been very kind with me and very supportive when I needed.
I found the store Booth in @AdoptingBTC yesterday and look what I found 🔥😉 the Coldcard which IMHO is Best Bitcoin hardware wallet.
That's why I teach it to kids in public schools without being paid for it from the company.
@nvk@COLDCARDwallet
If your hardware only works with one app, that’s not self-custody.
COLDCARD lets you build the setup that fits you.
We’re giving away a COLDCARD Q to help someone upgrade their #Bitcoin security.
To enter:
- Like
- Repost
- Comment why you want to win a COLDCARD Q
#COLDCARD Firmware Release 1.3.4Q & 5.4.4Mk4 🍄⏫
🔐 Single-Sig Spending Policies & 📱2FA!
You can now reconfigure your existing COLDCARD with a policy📑, so it will refuse to sign transactions that are too large, too frequent, or sent to an address not on your whitelist
1/3
Your COLDCARD greets you with your personal anti-phishing phrase every time you enter your pin.
It’s like a secret handshake that proves it’s the real deal.
We’ll send a COLDCARD Q to the person with the funniest anti-phishing phrase in the comments.
Closed-source wallets ask you to trust them.
COLDCARD’s verifiable source code lets you check for yourself, no blind trust required.
Don’t Trust, Verify.
162K Followers 2K FollowingThe security paradigm has significantly changed.
Moral panic and influencers won’t protect you. DYOR.
infosec will get a LOT worse before it gets better.
36K Followers 4K FollowingBuilding in the Bitcoin Space since 2017.
3D Printing, Home Mining and More!
EST BLOCK #496,801
Building in The Lab
Everything: https://t.co/A6hLtKtrq5
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I'm an apple who loves art, math, vibe coding, and Bitcoin.
Exit fiat, save in bitcoin, and take it into self custody.
Learn UTXO mgmt.
✌️🍎🍻
223 Followers 2K FollowingSwiss marketplace for non-custodial Bitcoin-backed loans. Borrow without selling. Lend against collateral you can verify. Zug, VQF member #101306. 🇨🇭
1K Followers 497 FollowingOwner of @AlsetSS • Father of 2 • Digital Nomad • Investor Of Time • Strategy Zero To One - Alset Mars Or Bust - Strive For Greatness.
901 Followers 8K FollowingThere r no secrets to success. It is the result of preparation, hard work, and learning from failure.Jai Hind🇮🇳 Jay MAA Tarini 🙏🏻# ମୁଁ ଓଡ଼ିଆ
162K Followers 2K FollowingThe security paradigm has significantly changed.
Moral panic and influencers won’t protect you. DYOR.
infosec will get a LOT worse before it gets better.
1K Followers 5 FollowingAi Playground. Own your data. Private. Fast. DVM. & MCP compatible. Nostr live search. Upload Data and Git Pull your code for analysis. Multiple Models.
2K Followers 822 FollowingTweeting the #moscowTime on every new #bitcoin block|Moscow time = Sats/$ | want to tip? https://t.co/40MLiLQJpL or⚡️[email protected]
25K Followers 15 FollowingThe #Bitcoin Stick. Cash in hand, physically pass it along multiple times. Anonymous. Trust no one.
Now starting HODL? Get a @COLDCARDwallet hardware wallet