Blockstream Research is leading Bitcoin's preparation for cryptographically relevant quantum computers. Cryptography Team Lead Jonas Nick and Mikhail Kudinov explore the trade-offs in potential post-quantum defenses.

The Blockstream app makes Bitcoin self-custody simple from day one. Face ID or PIN, done. Your Bitcoin in your control. No exchanges holding it. No one else with access. Stacking more? Secure it with Blockstream Jade for cold storage. Get started today. Buy Bitcoin with Apple or Google Pay and secure it instantly in the Blockstream app, your all-in-one Bitcoin platform. http://blockstream.com/app

Did @Julian Figueroa just ruin Christmas!? Blockstream Jade keeps Bitcoin secure in self-custody against all threats. Discipline to HODL through volatility? That’s on you!

JadeLink delivers air-gapped firmware updates in seconds. If you've got one, use it upgrade your Jade Plus to firmware 1.0.38 for the latest security enhancements and performance improvements.

112 years ago today, the Federal Reserve Act was passed. A plan drafted in secret by seven bankers on Jekyll Island controlling 1/4 of the world's wealth. It's how central banks took control of the money and why Bitcoin in self-custody with Jade offers an exit.

Smooth as a milkshake 🥤 This seamless SteaknShake payment was made with the Blockstream app, powered by our new @Liquid Network ↔️ Lightning swap feature. Instant Lightning payments straight from your self-custodied LBTC. Read more here:

Blockstream

Enabling Lightning Payments with Liquid Swaps in the Blockstream App

Blockstream app enables Liquid and Lightning swaps, making Bitcoin payments effortless, reliable, and extremely private.

What if Bitcoin needs to switch to post-quantum signatures? Our CEO and Bitcoin OG @Adam Back explains how Taproot already gives us this capability.

Living 100% on Bitcoin isn't theoretical anymore. @Julian Figueroa and @Joe Nakamoto cover the full ecosystem. Level one: a Jade hardware wallet for cold storage and the Blockstream app for instant Lightning payments. 🔒⚡️

New from Blockstream Research: Cryptography Lead Jonas Nick and Mikhail Kudinov analyze post-quantum signature schemes optimized for Bitcoin. Signature sizes reduced to ~3-4KB, practical for on-chain use, while building on hash functions Bitcoin already trusts. Full Paper: https://eprint.iacr.org/2025/2203.pdf

@Adam Back joined Yahoo Finance’s Market Catalysts this morning to break down: 🔹 Why Bitcoin’s 2025 price action looks “lackluster” on the surface 🔹 Why Bitcoin treasury companies are becoming a compelling investment theme 🔹 How today’s landscape compares to when he first got involved in 2013 A great overview of where Bitcoin stands heading into 2026.

In the 1990s, governments tried to ban strong encryption. Cypherpunks printed RSA code on t-shirts to prove a point: you can't stop math. Three decades later, Bitcoin proves they were right: you can't stop math. You can't ban freedom. When @Adam Back printed the original RSA code t-shirt in 1995, he showed that mathematical truth can't be banned. Today's limited edition version carries that spirit forward. Wear the code that challenged authority just by existing. https://store.blockstream.com/products/rsa-t-shirt-2025-limited-edition

Core Lightning v25.12 "Boltz's Seamless Upgrade Experience" is here! 🎉 New nodes open with BIP-39 12-word recovery phrases. Existing nodes maintain full backward compatibility. Major performance gains for large nodes and xpay improvements from user feedback. 📊⚡ This release delivers massive performance wins: Postgres reads 30% faster, database latency down 12%, worst-case reduced from 353s to 56.9s. xpay handles Phoenix payments reliably. New networkevents subsystem tracks peer ping times in real-time.

Blockstream

Core Lightning 25.12: "Boltz's Seamless Upgrade Experience"

We told you 24.08, 25.05 and 25.09 had enhancements, but you haven’t seen anything like this! We know we’re biased, but this release is full of...

Since v25.09, Core Lightning has merged 520 commits from 24 authors in 92 days. A warm welcome to 3 first-time contributors helping CLN continue evolving with more stability, usability and developer power. Onward. ⚡

The conversation is catching up to what Bitcoiners already know. Energy as currency isn't the future—it's Bitcoin, right now. Self-custody it today with Jade. 25% off exclusively in the Blockstream app. Ends December 1, 11:59 ET.

Blockstream users get the best deals. 🔥 Exclusive: 25% off all Jade wallets when you buy through the app. Buy Bitcoin. Secure it. Manage it. All in one platform. Offer ends 11:59 ET Dec 1.

From Roman salt to Bitcoin self-custody in 60 seconds flat. Dad explains the entire history of money at Thanksgiving dinner just to shill his son a Blockstream Jade. 😂 We didn't make this. But we're absolutely stealing it for the holidays! Be the Bitcoin dad. The Blockstream Jade bitcoin hardware wallet is 21% off for the holidays—the perfect gift for anyone ready to take self-custody. Fully open source. Easy to setup. Fits in a stocking. H/t @Roberto Rios (Peruvian Bull) for the edit 🙏 https://store.blockstream.com/products/jade-plus

Before Bitcoin. Before Hashcash implemented proof-of-work. Before the world knew about the Cypherpunks. There was a young @Adam Back with a vision, a keyboard, and zero interest in sleeves. BECOME UNGOVERNABLE with our Adam Back Retro Tee. 100% cotton. https://store.blockstream.com/products/adam-back-retro-tee

Gold has doubled in two years! Markets are searching for safety. Bitcoin offers an alternate route. In "The Gold Reset" @Roberto Rios (Peruvian Bull) breaks down what's unfolding and why self-custody with Blockstream Jade is how you prepare.

🚨 New Bitcoin price competition is live on the x.com/BlockstreamJade account! 🚨 Enter there for a chance to win $2100 in BTC!

Our CEO @Adam Back sat down with Simply Bitcoin Founder @NICO⚡️ to discuss why retail is asleep while institutions stack harder than ever, why the supply crunch may hit faster than expected, and why layer-2 is critical to Bitcoin's next phase.

Five years ago, nobody expected governments and institutions to buy or mine Bitcoin. Now they’re building portfolios around it. Price is down? Opportunity knocks. Download the Blockstream app and stack sats while institutions are still filling out paperwork. We are so early. But not forever.

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.