#COLDCARD Firmware Update. # Shared Mk4 & Q. New Features: . 📳 PushTX: once enabled with a service provider's URL, you can tap the COLDCARD and your phone will open a webpage that transmits your freshly-signed transaction onto the blockchain. See Settings > NFC Push Tx to enable

RT @COLDCARDwallet: Want to send #Bitcoin without risking your keys?.That’s what PSBTs are for. COLDCARD Q signs them 3 ways, all air-gapp….

What do you want to know?.

RT @21e15MicroSeed: We highly recommend @COLDCARDwallet. Not because of some fiat affiliate thing. We recommend it because we use it. Air….

Want to send #Bitcoin without risking your keys?.That’s what PSBTs are for. COLDCARD Q signs them 3 ways, all air-gapped:.– MicroSD.– QR.– NFC. Repost + reply with your favorite signing method 👇.One reply will win a COLDCARD Q.

RT @COLDCARDwallet: Forget flowers. Forget chocolates. Bitcoiners only want one thing:.– Air-gapped.– Dual secure elements.– NFC, QR & Mic….

RT @espresso_dopio_: 서브 콜드월렛으로 .Coldcard MK4 구입했습니다. 작고 휴대하기 좋아서 몹시 마음에 드네요. 글씨 크기가 Q보다 작아 아쉽지만, 전체적으로는 상당히 만족스럽습니다👍🏻. #Coldcard #BTC #Bitc….

Forget flowers. Forget chocolates. Bitcoiners only want one thing:.– Air-gapped.– Dual secure elements.– NFC, QR & MicroSD support. That one thing is the COLDCARD Q.

RT @COLDCARDwallet: Two COLDCARDs. Two approaches to the same mission: keeping your Bitcoin safe. ⚡ Mk4 - proven workhorse, NFC-ready, dua….

Two COLDCARDs. Two approaches to the same mission: keeping your Bitcoin safe. ⚡ Mk4 - proven workhorse, NFC-ready, dual secure elements. 📷 Q - big LCD screen, QR workflows, battery powered. We’re giving away one Mk4 and one Q. Repost + comment your favorite and why!

RT @TylerDurden: There’s nothing more cypherpunk than 50 air-gapped Bitcoin on a calculator.

RT @CryptoCloaks: Late night thoughts turning into reality. This unlocks so much for customization on all our products. We had to test it o….

RT @MatthewKapa: Smash Your Reps…. Stack those sats…. @COLDCARDwallet Secures Your Bitcoin Stash!

COLDCARD = Peace of mind. 🧘 . Storms may rage, but your #Bitcoin rests calmly, air-gapped in cold storage.

RT @MatthewKapa: @Anukuls @COLDCARDwallet Be Your Own Bank! ⚡️

RT @keebs82: I’m upgrading to one of these bad boys soon.

RT @trackbender: @COLDCARDwallet Doesn't work for me, but I do like my coldcard 😀.

RT @EtherbitHQ: Freedom wasn’t given to us. It was fought for. 🇮🇳. Your Bitcoin deserves the same. Secure it with Coldcard Mk4 🔐 . built fo….

RT @COLDCARDwallet: COLDCARD is for Bitcoiners who want cold storage that’s:.– Air-gapped.– Verifiable source code.– Dual secure elements.–….

RT @libertariman: ビットコインの始め方. Level 6 ハードウェアウォレットを取得する. ビットコインオンリーならColdCard Q. ShitcoinもやるならLedger. 個性は大事だけどビットコインのウォレットは個性を出すところではない. 長い間….

RT @nvk: COLDCARD feels illegal to own.

COLDCARD is for Bitcoiners who want cold storage that’s:.– Air-gapped.– Verifiable source code.– Dual secure elements.– Disguised as a calculator 😉. If your hardware wallet doesn’t check all these boxes, it’s time to upgrade. Use code UPGRADELEDGER for 10% off