2024-08-05T22:33:12Z https://nostr.now Coinkite https://nostr.now/npub12ctjk5lhxp6sks8x83gpk9sx3hvk5fz70uz4ze6uplkfs9lwjmsq2rc5ky https://m.primal.net/JpJd.png https://m.primal.net/JpJd.png https://nostr.now/nevent1qqsv6nzwqqsmr7qhetz6m73p7yjjxtzpfmp7y5qe4us347rtkmex7ygzyptpw26n7uc82z6quc79qxckq6xaj63ytels25t8ts87exqha6twq3nxctq Many colors are starting to run out, take advantage of our biggest sale of the year!<blockquote class="border-l-05rem border-l-strongpink border-solid"><div class="-ml-4 bg-gradient-to-r from-gray-100 dark:from-zinc-800 to-transparent mr-0 mt-0 mb-4 pl-4 pr-2 py-2">quoting <br/><span itemprop="mentions" itemscope itemtype="https://schema.org/Article"><a itemprop="url" href="/nevent1qqs0sppjj2vn0chcncu93uyk248qdv7l7mkxpn99enxj0jksh6l85zs246mv5" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1">nevent1q…6mv5</a></span> </div> Bitcoiners have been waiting for this.<br/>Our #BitcoinBlackFriday sale is LIVE 🔥<br/><br/>🔸 25% off when paying with BTC<br/>🔸 20% off when paying with fiat<br/>🔸 $50 off BLOCKCLOCK Mini<br/><br/>While supplies last.<br/> <img src="https://blossom.primal.net/be4885e52a0068e2badf9090c1fdd578673a1a8abc2db3b925d99152e013416d.jpg"> </blockquote> 2025-11-28T16:02:31Z https://nostr.now/nevent1qqs0sppjj2vn0chcncu93uyk248qdv7l7mkxpn99enxj0jksh6l85zszyptpw26n7uc82z6quc79qxckq6xaj63ytels25t8ts87exqha6twq2w8e28 Bitcoiners have been waiting for this.<br/>Our #BitcoinBlackFriday sale is LIVE 🔥<br/><br/>🔸 25% off when paying with BTC<br/>🔸 20% off when paying with fiat<br/>🔸 $50 off BLOCKCLOCK Mini<br/><br/>While supplies last.<br/> <img src="https://blossom.primal.net/be4885e52a0068e2badf9090c1fdd578673a1a8abc2db3b925d99152e013416d.jpg"> 2025-11-18T14:48:19Z https://nostr.now/nevent1qqsvmv0zfu6ym4t29zdpn0fga540kal6ueqy4kc5m7396u5fuj8p66gzyptpw26n7uc82z6quc79qxckq6xaj63ytels25t8ts87exqha6twqjaedr8 In reply to <a href='/nevent1qqsvt2ndnmn3988l8cx0ah9vux0pajztjw9gw5gn5fk354m9d4l4umcpndmhxue69uhkummn9ekx7mp0y5erqamnwvaz7tmwdaehgu3wd3skuep0y5erqffjxpshvct5v9ez2v3swaehxw309ahx7um5wgh8w6twv5hj2v3sy5erqctkv96xzu39xgc8wumn8ghj7ur4wfcxcetjv4kxz7fwvdhk6te9xgc8wumn8ghj7un9d3shjtnyv9kh2uewd9hj7ffjxpmhxue69uhhyetvv9ujuumwdae8gtnnda3kjctv9ulk5ynw'>nevent1q…5ynw</a><br/>_________________________<br/><br/>🫂 2025-09-30T12:24:56Z https://nostr.now/nevent1qqswpddqhx5fjuqaqlx40a0rxk7lvp0x575ftknplykhn6uz55ky9sqzyptpw26n7uc82z6quc79qxckq6xaj63ytels25t8ts87exqha6twq9q7py7 #COLDCARD Firmware Release 1.3.4Q &amp; 5.4.4Mk4 🍄⏫<br/><br/><br/><br/>Read the complete release and upgrade here 📁 <a href="https://blog.coinkite.com/spending-policy">https://blog.coinkite.com/spending-policy</a><br/><br/>🔐 Single-Sig Spending Policies &amp; 📱2FA!<br/><br/>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<br/><br/>We have also found a way to support **2FA authentication** using the usual phone apps (RFC 6238). If that&#39;s enabled, you will not be able to spend using your #COLDCARD unless you also have your phone and provide the correct #GoogleAuthenticator 6-digit numeric code.<br/><br/>Added file rename, Explorer is now offered for transactions of all sizes, NFC improvement, Added @BullBitcoin_, and many other fixes and improvements!<br/><br/>Watch the full video ▶️ <br/><a href="https://www.youtube.com/watch?v=Qd8ymRwrokg">https://www.youtube.com/watch?v=Qd8ymRwrokg</a><br/><br/><br/> <img src="https://blossom.primal.net/8db8960ac03c0cb55dcc988e7096e2473c7cd598acacf1964655d3069fc35624.png"> 2025-09-30T12:19:05Z https://nostr.now/nevent1qqsfsau97xr9ramdusu8h7rsv2nf7vy0653akve47cd4mfcuyxj2ewgzyptpw26n7uc82z6quc79qxckq6xaj63ytels25t8ts87exqha6twq7vrnzr Did you know #COLDCARD Q has a unique feature to store Secure Notes?<br/><br/>This feature allows you to add/manage new notes encrypted by your coldcard master secret.<br/><br/>Store those very important pieces of information and back it up with your Secure MicroSD Backup<br/><br/>Import and Export even by QR! 🪄<br/><br/>Learn more <a href="https://coldcard.com/docs/secure_notes/">https://coldcard.com/docs/secure_notes/</a> <br/><br/><br/><video controls width="100%" class="max-h-[90vh] bg-neutral-300 dark:bg-zinc-700"><source src="https://m.primal.net/Ltfd.mov"></video> 2024-11-05T17:30:27Z https://nostr.now/nevent1qqs05hx9256gr8dejmews7tlnp59fxaycc2hmykyksgvggj8yzffxfczyptpw26n7uc82z6quc79qxckq6xaj63ytels25t8ts87exqha6twqm8ag2c Happy to announce the new <span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1spralxq6jlw5rdy0249vqr5sh43rfrlx2wzv3rhjjqedw559w9psrs8s72" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>Spiral</span> (<span class="italic">npub1spr…8s72</span>)</a></span> #HereComesBitcoin collaboration. <br/><br/>All profits from this Grumpy Surfer #SATSCARD sales will be donated to #Bitcoin Education. <br/><br/><a href="https://store.coinkite.com/store/sc-hcb-1">https://store.coinkite.com/store/sc-hcb-1</a> 2024-10-16T18:30:23Z https://nostr.now/nevent1qqsrucnzn9mlu548ygjtk5mx2jtypyg25j9uy62u3f428k82agwkzuqzyptpw26n7uc82z6quc79qxckq6xaj63ytels25t8ts87exqha6twqhf877h Good morning! Did you know COLDCARD invented an easy and safe way to help prevent evil-maid and tampering attacks?<br/><br/>We call it anti-phishing words, learn more here. <br/><video controls width="100%" class="max-h-[90vh] bg-neutral-300 dark:bg-zinc-700"><source src="https://m.primal.net/LXXN.mov"></video> 2024-10-16T11:07:22Z https://nostr.now/nevent1qqsytcd7wlzhuzkd3zs5c23w339mwgu7cvte39duwxhndnhx9zd34cszyptpw26n7uc82z6quc79qxckq6xaj63ytels25t8ts87exqha6twqcru4g8 In reply to <a href='/nevent1qqsrpkqrmvv0nu6sdmguvadkedm46uvfedtyhgdmhfnmc3kx97kxsfspzamhxue69uhhyetvv9uhxtnyd9nkwmm09e3k7mgx99wef'>nevent1q…9wef</a><br/>_________________________<br/><br/>What do you mean, I don&#39;t think I get it? 2024-09-26T12:09:28Z https://nostr.now/nevent1qqspm9uqpv6mhsv5tar8fxsqck8empvrzk0cxv7yvapq99f7janpg6szyptpw26n7uc82z6quc79qxckq6xaj63ytels25t8ts87exqha6twqhsmalq Learn how to navigate COLDCARD&#39;s unique Trick PINs system.<br/><br/>Duress PIN, Lockout Timer PIN, Brick Me PIN, Look Blank PIN, Just Reboot PIN, Delta Mode PIN, Silent Wipe, and much much more! <br/><br/><a href="https://coldcard.com/docs/trick-pins/">https://coldcard.com/docs/trick-pins/</a><br/><br/><video controls width="100%" class="max-h-[90vh] bg-neutral-300 dark:bg-zinc-700"><source src="https://m.primal.net/KvCR.mp4"></video> 2024-09-19T19:34:29Z https://nostr.now/nevent1qqsg526mclnezxrlm8mmprx3fczl0v8q70vvzwmztuwddh3t8xszgrszyptpw26n7uc82z6quc79qxckq6xaj63ytels25t8ts87exqha6twqa7d38a In reply to <a href='/nevent1qqsqqqzjl4zhuaae4cw5qyyrxl5q59rpejwzyyetd98axs3xdslledgg8egrf'>nevent1q…egrf</a><br/>_________________________<br/><br/>Forgotten. We setup a new one. Then remembered we had that. Too late 😂 2024-09-12T22:24:40Z https://nostr.now/nevent1qqswnytxu0x3k0zwpdnjjtymnzr5yw8shcujgqz9jz0pltqzqd7devgzyptpw26n7uc82z6quc79qxckq6xaj63ytels25t8ts87exqha6twq2mc7u3 #COLDCARD Firmware Upgrade!<br/><br/>## SeedXOR<br/>🌳XOR from Seed Vault (select other parts of the XOR from seeds in the vault). Restore geographically distributed SeedXOR without physically bringing the parts together<br/>📸Seed XOR seeds can be scanned f/ SeedQR instead of typing them by hand<br/><br/>## Multisig<br/>🔐Option for unsorted multisig [multi(…)]<br/>📝JSON wrapped imports to provide custom `name` instead of the filename. Most useful for USB and NFC imports which have no filename<br/>🔬Descriptor checksum is no longer required upon import<br/>⛓️‍💥Create Airgapped (aka using CC as multisig coordinator) now works with BBQRs<br/><br/>## QR File Share<br/>📁Same as NFC file share, allows user to share any file from SD card via QR/BBQr<br/> <br/>## Optimizations and speed<br/>🍄 #libsecp256k1 bumped to latest 0.5.0 (point multiplication algorithm speed up, etc)<br/>🐇⚡️improvements in our signature grinding algo. Updated libsecp plus our optimizations yield 30% improvement in signing speed over previous version (15% in overall signing speed as signing is not the only part of it (validation, change checks, etc.))<br/><br/>## Security<br/>🧐Improve side-channel protection: libsecp256k1 context randomization now happens before each signing session<br/><br/>And much more! Details here <a href="https://blog.coinkite.com/5.4.0-released/">https://blog.coinkite.com/5.4.0-released/</a><br/><br/> <img src="https://m.primal.net/Knzw.jpg"> 2024-09-12T19:21:33Z