Your bitcoin should answer to you alone. Jade builds your recovery phrase from 9 independent sources of randomness, blended so nobody on earth can reproduce it. Watch the full setup: create your wallet, confirm it's genuine, and receive with confidence. How Jade generates your recovery phrase: https://help.blockstream.com/blockstream-jade/faqs/how-does-jade-generate-my-recovery-phrase

Your bitcoin is only as safe as the randomness your keys are made from. Jade blends 9 independent sources of randomness, from a dedicated hardware chip to camera noise, into a result that exists only once. Our code is open-source, so anyone can verify it. How Jade generates your recovery phrase: https://help.blockstream.com/blockstream-jade/faqs/how-does-jade-generate-my-recovery-phrase

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

Jade is unaffected by the recently disclosed RNG vulnerability affecting other hardware wallets. Every BlockstreamJade recovery phrase comes from multiple independent entropy sources. On an affected device? Here's how to migrate calmly, step by step:

Blockstream

Jade Is Unaffected by the Recent Coldcard Vulnerability

A direct answer for Jade owners on the Coldcard Mk3 advisory, plus a four-step guide to moving bitcoin onto freshly generated keys.

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.

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.

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:

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">

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.

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.

Hashcash, invented by @Adam Back, is cited in the Bitcoin whitepaper. Yet in 2013, watching bitcoin pass $100, he thought he had missed the boat. Own your bitcoin from day one. Download the Blockstream app:

Blockstream: Bitcoin and digital asset infrastructure

Blockstream App: A multi-platform, feature-rich Bitcoin and Liquid Wallet.

Blockstream app guides you from your first bitcoin purchase to full self-custody, all inside one elegant, security-first Bitcoin experience.

Everyone you've orange-pilled is still leaving their coins on an exchange. The best way to teach self-custody is to hand someone the keys. Jade Core makes it a five-minute conversation, not a lecture. Bring someone in this week https://store.blockstream.com/products/blockstream-jade-core @Leo_Usi.blossom.band/e07ff6681c18ef8338073ef644563ff4b76addb986818d163286387ad912e066.jpg" alt="image" loading="lazy">

Reusing a bitcoin address links your transactions and weakens your privacy. The Blockstream app gives you a fresh receive address every time, and your funds stay in self-custody from the moment you buy. Take back your privacy. Download the Blockstream app:

Blockstream: Bitcoin and digital asset infrastructure

Blockstream App: A multi-platform, feature-rich Bitcoin and Liquid Wallet.

Blockstream app guides you from your first bitcoin purchase to full self-custody, all inside one elegant, security-first Bitcoin experience.

OP_CHECKSHRINCS uses one public key with two ways to spend. The first path keeps signatures small by having the device track how many times it has signed. The second path doesn't track anything and is always available as a safety net. If your device is lost or replaced, you restore with your recovery phrase and fall back to that second path. It's more expensive to spend from, but you are never locked out. This is how SHRINCS works. @Leo_Usi.blossom.band/49740ad2a9d86f9a2cd7912199400cfe94aa91fa1569cedb88f9b1a9050f3995.gif" alt="image" loading="lazy"> Read about the OP_CHECKSHRINCS opcode put forward by Blockstream Research and what it means for Bitcoin's post-quantum security:

Blockstream

OP_CHECKSHRINCS: A Hash-Based Signature Opcode for Post-Quantum Bitcoin

OP_CHECKSHRINCS is a proposed Bitcoin opcode for post-quantum signatures whose security rests on SHA-256, the hash function Bitcoin already uses.

"Buy the dip and hodl. Don't get shaken out." - @Adam Back

Most people buy bitcoin first and secure it later. With Jade paired to the Blockstream app, every purchase lands straight in offline cold storage, secured by your hardware wallet from the very first transaction.

Self-custody got a reputation for being hard. Jade Core is here to end it. Serious protection for your bitcoin, with a setup simple enough that "I'll do it later" stops being a reason. https://store.blockstream.com/products/blockstream-jade-core

An unconfirmed transaction isn't lost, it's waiting its turn in the mempool, and the fee you paid is its place in line. In a hurry? Bump the fee in the Blockstream app to move up the queue.

Spending on the @Liquid Network is going near-instant. 0-conf brings safe-to-act-on transfers, now in public beta with a full release around the corner. And with the issuance cap removed, issuers can mint stablecoins and other Issued Assets at real-world scale. The full Liquid roadmap is in our Q2 update.

Blockstream

Blockstream Quarterly Update - Q2 2026

From a proposed post-quantum opcode to a reimagined Jade lineup and a Liquid roadmap with dates, here's what Blockstream shipped in Q2 2026.

Today, losing your hardware wallet is fine. Your recovery phrase gets you back in. In a post-quantum signing setup, the device also holds state: a running count of how many times it has signed. That state matters for security. SHRINCS is designed so that if the device is lost, the recovery phrase loads into a new one and falls back to a path that needs no state at all. The fallback needs no state, so a lost device is never a lost wallet. More expensive to spend from, but always accessible. Blockstream Research Director Jonas Nick on building a post-quantum scheme that stays safe even when hardware fails:

Blockstream

OP_CHECKSHRINCS: A Hash-Based Signature Opcode for Post-Quantum Bitcoin

OP_CHECKSHRINCS is a proposed Bitcoin opcode for post-quantum signatures whose security rests on SHA-256, the hash function Bitcoin already uses.