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PSBT signing has never been this easy. Create the transaction with Sparrow Wallet 🐦. Sign on COLDCARD. No USB. No internet. Just a MicroSD. We’re giving away a COLDCARD Q to a Bitcoiner who replies with the moment they knew it was time to go airgapped.

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COLDCARD

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24,484 просмотров • 1 год назад •via X (Twitter)

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Why settle for one way to sign when you can have the airgapped signing trifecta? The COLDCARD Q has it all: 📸 QR 📲 NFC 💾 MicroSD Repost + reply with which signing method you prefer. One reply will win a Q.
0:27

Why settle for one way to sign when you can have the airgapped signing trifecta? The COLDCARD Q has it all: 📸 QR 📲 NFC 💾 MicroSD Repost + reply with which signing method you prefer. One reply will win a Q.

COLDCARD

10,803 просмотров • 1 год назад

COLDCARD takes Bitcoin security seriously. No shortcuts. No compromises. We’re giving away a COLDCARD Q to help one Bitcoiner level up their security. To enter: 👍 Like 🔁 Repost 💬 Comment your favorite COLDCARD security feature
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COLDCARD takes Bitcoin security seriously. No shortcuts. No compromises. We’re giving away a COLDCARD Q to help one Bitcoiner level up their security. To enter: 👍 Like 🔁 Repost 💬 Comment your favorite COLDCARD security feature

COLDCARD

33,318 просмотров • 11 месяцев назад

The COLDCARD Q is built for Bitcoiners. Clean QR signing, airgapped security, and a focus on simplicity. We’re giving one away. To enter: • Like 👍 • Repost 🔁 • Comment why you want a Q 👇
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The COLDCARD Q is built for Bitcoiners. Clean QR signing, airgapped security, and a focus on simplicity. We’re giving one away. To enter: • Like 👍 • Repost 🔁 • Comment why you want a Q 👇

COLDCARD

24,274 просмотров • 3 месяцев назад

🚨 GIVEAWAY 🚨 We’re giving away a COLDCARD Q, the most advanced Bitcoin hardware wallet. Featuring: ✅ On-device co-signing ✅ Custom spending policies ✅ Secure multisig with CCC To enter: 1 - Like 2 - Repost 3 - Comment your favorite COLDCARD feature
0:28

🚨 GIVEAWAY 🚨 We’re giving away a COLDCARD Q, the most advanced Bitcoin hardware wallet. Featuring: ✅ On-device co-signing ✅ Custom spending policies ✅ Secure multisig with CCC To enter: 1 - Like 2 - Repost 3 - Comment your favorite COLDCARD feature

COLDCARD

43,859 просмотров • 1 год назад

MicroSD 2FA on the COLDCARD adds a physical second factor. Pair it to a specific microSD card and it won’t unlock without it, even with the correct PIN. No card or wrong card = seed wiped. We’re giving away an Mk5. To enter: Like, repost, and comment why you want to win one.
0:57

MicroSD 2FA on the COLDCARD adds a physical second factor. Pair it to a specific microSD card and it won’t unlock without it, even with the correct PIN. No card or wrong card = seed wiped. We’re giving away an Mk5. To enter: Like, repost, and comment why you want to win one.

COLDCARD

20,225 просмотров • 3 месяцев назад

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.
1:41

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.

COLDCARD

10,952 просмотров • 1 месяц назад

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
0:25

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

35,085 просмотров • 9 месяцев назад

Bitcoin self-custody made simple. COLDCARD + @BullBitcoin_ = serious security with a simple flow. We’re giving away a COLDCARD Q so you can try it yourself. To enter: - Like - Repost - Comment why you’re bullish on Bitcoin 👇
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Bitcoin self-custody made simple. COLDCARD + @BullBitcoin_ = serious security with a simple flow. We’re giving away a COLDCARD Q so you can try it yourself. To enter: - Like - Repost - Comment why you’re bullish on Bitcoin 👇

COLDCARD

49,930 просмотров • 9 месяцев назад

Self-custody shouldn’t feel difficult. COLDCARD keeps Bitcoin security simple without sacrificing advanced features. Easy to use, Hard to outgrow. We’re giving away a COLDCARD Q! To enter: • Like this post • Repost • Comment, why self-custody is a non-negotiable
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Self-custody shouldn’t feel difficult. COLDCARD keeps Bitcoin security simple without sacrificing advanced features. Easy to use, Hard to outgrow. We’re giving away a COLDCARD Q! To enter: • Like this post • Repost • Comment, why self-custody is a non-negotiable

COLDCARD

11,775 просмотров • 2 месяцев назад

🚨GIVEAWAY 🚨 📈 Bitcoin hit ATH this week. Your security should be at an ATH too. We’re giving away a COLDCARD Q to help you with that. To Enter: - Follow COLDCARD - Retweet - Comment the worst way to store your Bitcoin (for laughs)
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🚨GIVEAWAY 🚨 📈 Bitcoin hit ATH this week. Your security should be at an ATH too. We’re giving away a COLDCARD Q to help you with that. To Enter: - Follow COLDCARD - Retweet - Comment the worst way to store your Bitcoin (for laughs)

COLDCARD

63,868 просмотров • 1 год назад

Self-custody isn’t just buying a hardware wallet. It’s using it and understanding how it actually works. We’re giving away a COLDCARD to help someone upgrade their self-custody. 🎁 To enter: 🔸Like 🔸Repost 🔸Comment one COLDCARD feature you want to learn more about. 🔐
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Self-custody isn’t just buying a hardware wallet. It’s using it and understanding how it actually works. We’re giving away a COLDCARD to help someone upgrade their self-custody. 🎁 To enter: 🔸Like 🔸Repost 🔸Comment one COLDCARD feature you want to learn more about. 🔐

COLDCARD

14,794 просмотров • 8 месяцев назад

"They hear about Coldcard and go, Bitcoin's been hacked" James Butterfill on the impression the Coldcard hack has left on investors "This is the first question that comes up among investors. They hear about Coldcard and go, okay, well that's it, Bitcoin's been hacked. Clearly it hasn't, but that is the inference, and then they try to dismiss the whole asset completely" "I think that's an incredibly misguided view" "Partly because the Coldcard hack, although it's harsh for the people involved, was what, two and a half to three thousand Bitcoin in total, not a huge amount of Bitcoin that was vulnerable"
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"They hear about Coldcard and go, Bitcoin's been hacked" James Butterfill on the impression the Coldcard hack has left on investors "This is the first question that comes up among investors. They hear about Coldcard and go, okay, well that's it, Bitcoin's been hacked. Clearly it hasn't, but that is the inference, and then they try to dismiss the whole asset completely" "I think that's an incredibly misguided view" "Partly because the Coldcard hack, although it's harsh for the people involved, was what, two and a half to three thousand Bitcoin in total, not a huge amount of Bitcoin that was vulnerable"

The Wolf Of All Streets

30,695 просмотров • 12 дней назад

Who makes the rules? You do. Who enforces them? Your COLDCARD. COLDCARD's new Spending Policy + 2FA lets you enforce rules before a single sat moves. Magnitude, velocity, whitelists, even 2FA. To celebrate, we're giving away a COLDCARD Q. Like, Comment and Repost to enter.
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Who makes the rules? You do. Who enforces them? Your COLDCARD. COLDCARD's new Spending Policy + 2FA lets you enforce rules before a single sat moves. Magnitude, velocity, whitelists, even 2FA. To celebrate, we're giving away a COLDCARD Q. Like, Comment and Repost to enter.

COLDCARD

78,733 просмотров • 10 месяцев назад

This is how easy it is to verify your Bitcoin address. And yes, this step is a non-negotiable 🔒 We’re going to give away a COLDCARD Q. Just repost & reply with your non-negotiable Bitcoin security habit to enter. Winner will be selected Wednesday 8/13.
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This is how easy it is to verify your Bitcoin address. And yes, this step is a non-negotiable 🔒 We’re going to give away a COLDCARD Q. Just repost & reply with your non-negotiable Bitcoin security habit to enter. Winner will be selected Wednesday 8/13.

COLDCARD

26,889 просмотров • 1 год назад

COLDCARD + Cove makes self-custody extremely simple. Quick setup. Clear work flow. No guesswork. This walkthrough shows how it works. We're giving away a COLDCARD Q to help some upgrade their self-custody. To Enter: - Like - Repost - Comment why self-custody matters 👇
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COLDCARD + Cove makes self-custody extremely simple. Quick setup. Clear work flow. No guesswork. This walkthrough shows how it works. We're giving away a COLDCARD Q to help some upgrade their self-custody. To Enter: - Like - Repost - Comment why self-custody matters 👇

COLDCARD

18,544 просмотров • 5 месяцев назад

Here’s a quick step-by-step guide on how to connect your Coldcard Q to BULL Wallet 🐂 If you’re stacking with BULLBITCOIN.COM and storing with Coinkite, this combo gives you full control over your sats — no compromises. Watch the video to see how simple it is 🔥
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Here’s a quick step-by-step guide on how to connect your Coldcard Q to BULL Wallet 🐂 If you’re stacking with BULLBITCOIN.COM and storing with Coinkite, this combo gives you full control over your sats — no compromises. Watch the video to see how simple it is 🔥

GG

22,780 просмотров • 9 месяцев назад

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.
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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.

COLDCARD

27,591 просмотров • 1 год назад

HOW TO VERIFY DICE ROLLS ON COLDCARD AND SEEDSIGNER - Coldcard vulnerability explained: move your funds ASAP if you did not use dice rolls - How to create a seed with dice on coldcard, seedsigner - How to verify that the seed matches online tool: - Remember to roll NEW dice and create a NEW seed after testing - Some general dice rolling advice and tips
16:44

HOW TO VERIFY DICE ROLLS ON COLDCARD AND SEEDSIGNER - Coldcard vulnerability explained: move your funds ASAP if you did not use dice rolls - How to create a seed with dice on coldcard, seedsigner - How to verify that the seed matches online tool: - Remember to roll NEW dice and create a NEW seed after testing - Some general dice rolling advice and tips

Cole 🇿🇦

42,469 просмотров • 19 дней назад

I'm giving a quick example for signing with #Kadena Spirekey. First, you create a Transaction; then it sends you off to sign; then, upon return, our site has to handle sending the transaction and the status of success/failure. Sends and spends your $KDA all the same. Next up I want to try embedding the signing without ever leaving the site.
0:40

I'm giving a quick example for signing with #Kadena Spirekey. First, you create a Transaction; then it sends you off to sign; then, upon return, our site has to handle sending the transaction and the status of success/failure. Sends and spends your $KDA all the same. Next up I want to try embedding the signing without ever leaving the site.

Amir

13,126 просмотров • 2 лет назад

So we tried a thing... A multi-key, multi-app, multi-device, multi-OS, multi-entropy-source 2-of-3 Collaborative Wallet with Bitcoin Keeper as the coordinator and BlueWallet plus Sparrow Wallet 🐦 as co-signers. Boom💥... worked like magic. You don't need to trust any one party/ platform/ team/ device/ OS here. Also, cost = $0.00. > Keeper on iOS > BlueWallet on Android > Sparrow on Mac/ desktop You can see the same first address generated by all three which confirms that they are the same wallet. Now you can use Sparrow to create a PSBT/ transaction and get it signed by the two mobile based apps. Note: Keeper also supports Airdrop, NFC, and QR for wallet creation and txn signing - which can be used based on it's counterparties capabilities.
3:04

So we tried a thing... A multi-key, multi-app, multi-device, multi-OS, multi-entropy-source 2-of-3 Collaborative Wallet with Bitcoin Keeper as the coordinator and BlueWallet plus Sparrow Wallet 🐦 as co-signers. Boom💥... worked like magic. You don't need to trust any one party/ platform/ team/ device/ OS here. Also, cost = $0.00. > Keeper on iOS > BlueWallet on Android > Sparrow on Mac/ desktop You can see the same first address generated by all three which confirms that they are the same wallet. Now you can use Sparrow to create a PSBT/ transaction and get it signed by the two mobile based apps. Note: Keeper also supports Airdrop, NFC, and QR for wallet creation and txn signing - which can be used based on it's counterparties capabilities.

Bitcoin Keeper

33,543 просмотров • 2 лет назад