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Blockstream
blockstream@blockstream.com
npub1jg55...6n8n
Building the rails for Bitcoin finance. Enterprise, consumer, asset management. The future of finance runs on ₿itcoin. 🌊 Download the Blockstream app https://blockstream.com/app 🔒 Get a Jade Plus hardware signing device https://store.blockstream.com/ 🔌 Plug into Bitcoin & the Liquid Network https://blockstream.info/explorer-api ✋ Make a support request https://help.blockstream.com/hc/en-us/requests/new?ticket_form_id=8613 Dont trust, verify.
Sync an entire Bitcoin wallet in seconds. QuickSync is a new open-source wallet scanning protocol by Blockstream that turns hundreds of address lookups into one descriptor request, dramatically cutting sync time when using the Blockstream Explorer API. image Get an API key today:
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Blockstream 3 days ago
"If you can't outperform Bitcoin with a strategy, maybe you should just buy Bitcoin." Over six-year rolling periods for the last 15 years, Bitcoin has been the outlier asset class. @Adam Back on why Bitcoin is the hurdle rate for long-term value preservation. The hurdle rate is set. Build your allocation in self-custody. blockstream.com/app
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Blockstream 1 week ago
Owning your money outright is a financial edge that's hard to take away. @Julian Figueroa lays it out in Exit Manual Episode #45, and the Blockstream app makes it real.
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Blockstream 1 week ago
Like many open source Bitcoin projects, Core Lightning has received a number of AI-generated CVE reports from multiple sources over the past 10 days. Our small team, together with several invaluable open source contributors, has been working intensively to validate and triage these reports and develop fixes where needed. We’re now working through a broader remediation strategy. The first step is a point release containing many of these fixes, and we will strongly recommend upgrading. We’re aiming to have an initial version of the point release available within the next few days.
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Blockstream 1 week ago
Jade doesn’t use a physical secure element. We just published a full post on how the Virtual Secure Element works: image Your recovery phrase sits encrypted on the device. Unlocking it needs the PIN you type on Jade and a key share from a blind oracle. Neither is enough by itself. The oracle never sees the real PIN or any wallet data. It only gets a scrambled version that includes a secret unique to that particular Jade. Three wrong PINs and both sides wipe. Device and oracle. After that the encrypted data is permanently unusable without the recovery phrase. A locked Jade holds nothing an attacker can use alone. Everything is open source, firmware, hardware, and the oracle. You can run the oracle yourself, or skip it completely and use SeedQR or type the recovery phrase.
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Blockstream 1 week ago
A passphrase adds an advanced layer of protection to the Bitcoin self-custody setup you already have, with nothing to buy. Your existing funds don't move on their own. Back up the passphrase as carefully as your recovery phrase, then send them across. Lose the passphrase and the funds are gone, even if you still hold your recovery phrase. It isn't a password you can reset, it's part of the key. Jade shows an 8 character fingerprint each session. If it doesn't match, you've typo'd. Passphrases are the BIP-39 standard, not a Jade feature, so the same one works on any wallet that supports it. Case and spaces count. Step by step setup on Jade: https://help.blockstream.com/blockstream-jade/add-more-security-functionality/add-a-bip39-passphrase-for-jade image
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Blockstream 2 weeks ago
Announcing Blockstream Swaps. Trustless atomic swaps for Bitcoin, Liquid, and Lightning. Hold BTC or LBTC and pay Lightning invoices without managing channels or inbound liquidity. Reach Lightning from cold storage while keeping full control of your funds. Built as a complementary service to strengthen ecosystem resilience and redundancy. Currently in beta. Full announcement: Beta access: image
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Blockstream 3 weeks ago
To Bitcoin community leaders worldwide: Please message your Telegram, Signal, Discord, Nostr groups: anyone who created a recovery phrase on a Coldcard should migrate: fresh seed, generated on a new device. If your community needs hardware wallets, get in touch. We're expediting onboarding and shipments for local communities: https://help.blockstream.com/local#register-your-bitcoin-meetup image
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Blockstream 3 weeks ago
The Blockstream Jade lineup (Jade Classic, Jade Core, and Jade Plus) is unaffected by the recently reported RNG issue with another company. We are preparing a blog post outlining best practices for anyone moving bitcoin to a new wallet, including how to generate fresh keys, verify addresses, conduct a test transaction and securely retire an old recovery phrase. Frontier LLMs are uncovering previously overlooked vulnerabilities, and Blockstream is using the same tools to strengthen the QA reviews of our product suite. But AI is not a substitute for open source: transparent hardware and firmware enable independent scrutiny, faster disclosure and quicker fixes. This is why Blockstream Jade continues to champion both open source software and hardware.
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Blockstream 3 weeks ago
The curve behind every Bitcoin signature has a weakness to quantum computers, understood since the 1990s. The only thing missing is the machine. Quantum is the Bitcoin Security Consortium's first focus, and Jonas Nick explains why we build for that adversary now instead of betting it never arrives.
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Blockstream 3 weeks ago
Send Bitcoin faster, keep your amounts private, and hold stablecoins and other assets, all on Bitcoin-based rails. That's Liquid, a Bitcoin layer-2. At @btcplusplus Toronto, Pablo Greco explains how it works. Watch:
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Blockstream 0 months ago
Lose your phone, keep your 2FA. Jade Plus now backs up your two-factor accounts. Scan your Google Authenticator export straight to Jade, then generate your codes on a PIN-protected device you control. https://store.blockstream.com/products/jade-plus @Leo_Usi.blossom.band/d379ed7e359307b465e7f32e5c4f5c2d45f571d50db3b34edc4636988579ae41.jpg" alt="image" loading="lazy">
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Blockstream 0 months ago
Post-quantum signatures aren't new, they've existed for about 45 years. @Adam Back on why OP_CHECKSHRINCS proposed by Blockstream Research is designed as a minimal, provable change to Bitcoin, and why starting the migration now means more real-world data before it's actually needed.
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Blockstream 1 month ago
Proud to be a founding member of the @BTCconsortium. Bitcoin’s long-term security has always been core to what we do, from open-source research to practical post-quantum work like OP_CHECKSHRINCS. Supporting the independent developer community that keeps the network resilient is a natural extension of that mission. image