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.

Blockstream is expanding! We're integrating Distributed Lab’s engineering team and proprietary Bitcoin infrastructure and cryptography to accelerate delivery across the @Liquid Network and enterprise products. We are building the future of finance on Bitcoin. This integration brings: 🌍 World-class engineering talent ⚡️ Advanced blockchain and smart contracting development 🏗️ Accelerating delivery across platform products Blockstream remains focused on scaling secure, production-grade Bitcoin infrastructure. Full details:

Blockstream: Bitcoin and digital asset infrastructure

Blockstream Boosts Engineering with Addition of Distributed Lab

Blockstream announced that it signed a definitive agreement to integrate the technology and expertise of Distributed Lab, a software engineering co...

“Open protocols win over time.” @Adam Back explains why Bitcoin and its layer-2s will dominate value transfer, and why privacy tech like Confidential Transactions on the @Liquid Network has the attention of everyone from cypherpunks to traditional finance. Watch the full talk from the Bitcoin Capital Summit 2025, an initiative by Fulgur Ventures, Blockstream, @npub19yfz...mc68 , H100Group and STOKR during @Plan ₿ Network week.

The Jade Plus camera just got its biggest upgrade yet! 🔹 Improved QR Scan reliability ⚡ Up to 50% faster PSBT scans 🔆 QR Brightness adjustment for improved capture from companion apps Update now and scan PSBTs, SeedQRs, and more with sharper, smoother confidence across Bitcoin. 📷 With the latest Jade Plus update you can load a SeedQR and scan PSBTs even faster. Scans are ~35% quicker now, and we're aiming to improve that even more in the coming months. 🌞Now adjust the QR code brightness on your Jade for easier scanning from companion apps. This helps users optimize scans in any lighting condition. Upgrade your Jade via the Blockstream app to unlock these new features! Learn about the full update:

Blockstream

Jade Plus Camera Update: Faster QR Scanning

With the Jade Plus camera upgrade, QR scanning executes up to 35% faster.

Our CEO @Adam Back has been building cypherpunk systems for decades—starting even before Bitcoin existed! Now he'll share insights on "Designing Systems from the Cypherpunk Perspective" on the Treasury Stage @Bitcoin Magazine Conference in Amsterdam with Shinobi. 📅 Nov 14, 3:30pm

Most Lightning wallets blur the line on custody. In the latest blog from the VLS Project, Greenlight stands out as the model that lets builders offer Lightning access through apps or wallets without giving up control. ⚡️ Node ops in the cloud, signing on-device. Built on Core Lightning and powered by the VLS Project, Greenlight shows how to implement Lightning infrastructure without custody risk: ✅ Professionally managed nodes ✅ Validated signing on user devices ✅ APIs for wallets and services to go self-custodial Read the full custody-model report:

VLS

The Lightning Custody Spectrum

Your Keys, Not Your Coins?

Zero filter, all signal. Blockstream Research Director Andrew Poelstra joined @Bitcoin News covering: Privacy development challenges. BTC options strategies for rebalancing. What happens when hash rate exceeds Bitcoin's needs https://www.youtube.com/live/fnay8Rdodwk?si=-Pv2zv-m6WxKEF8u

Blockstream Research is pushing Bitcoin's boundaries with high-assurance scripting and advanced cryptography. Andrew Poelstra joins Rob Wallace on @Bitcoin News to connect the work to what's happening in Bitcoin right now. Tune in Monday at 12pm ET. https://www.youtube.com/live/fnay8Rdodwk?si=M9qWiH4gNMv-DiYb

Ethereum had its chance. Solana burned billions. Now Bitcoin is getting high-assurance smart contracts through Simplicity on the @Liquid Network . The future of finance runs on Bitcoin. Simplicity TX live on the Blockstream Explorer ⬇️ What you're seeing: A transaction spending from a Simplicity program. https://blockstream.info/liquid/tx/9d968310e55172871182cfc6fd33a5e2bc5c8ba8fc1f7c4ef5743163ac8b998a?expand

When money goes digital without decentralization, control shifts from people to institutions. Bitcoin fixes this. Watch the latest from @Roberto Rios (Peruvian Bull) to see what's coming and learn why using Jade is the best way to maintain your freedom.

A huge thank you to the Lugano Plan B team, @Plan ₿ Network, PoW Space, Satoshi Spritz, and Spazio21 for hosting an incredible week! We had a great time connecting with builders, showing new tech, and celebrating the future of Bitcoin. See you all next year in Lugano. ⚡🇨🇭