On this day in 2008, Satoshi Nakamoto emailed Adam Back about citing Hashcash in the Bitcoin whitepaper. Adam replied the next day and later co-founded Blockstream to help build Bitcoin’s future.

That future is now. Bitcoin’s here. Make it yours with the Blockstream app.

Core Lightning v25.09 “Hot Wallet Guardian” is here!

Bookkeeper, first introduced to CLN as a plugin by Lisa Neigut in 2022, is now fully integrated! It offers real-time visibility into payments, fees, and channel activity, making node management more transparent.

This release upgrades xpay with support for BIP353 “at-user” payment addresses (like cln@blockstream.com), making Lightning more human-friendly.

Splicing is smoother and Reckless now supports Python plugins.

Read the full release blog.
https://blog.blockstream.com/core-lightning-v25-09-hot-wallet-guardian/

We just shipped another update to the Blockstream app on Android & iOS.

As Bitcoin grinds higher, we’re laser focused on making it easier to buy, secure, and manage whether you’re stacking your first sats or running advanced setups.

Open source self-custody always.

Version 5.0.9 is live in the App Store and on Google Play.

https://blockstream.com/app/

Blockstream is proud to present with STOKR and Fulgur Ventures

Bitcoin Capital Summit – Lugano. 🏔️

During Lugano's Plan ₿ week at our European HQ, this invite-only event will feature panels with leading voices like Adam Back, Preston Pysh, and Sean Bill.

The Summit is a forum for allocators, treasuries, and market leaders to explore Bitcoin-backed finance. Topics include tokenization, treasury solutions, and infrastructure built for trillion-dollar markets. Attendance is limited apply now to be in the room.

https://luma.com/5m2prwfk

The Blockstream Explorer API just got a major upgrade! 🧭

Smarter scanning with Waterfalls by @RCasatta, tx package relay for Ark builders, and a reduced 0.1 sat/vB min relay fee. Plus a smoother developer experience across the board.

Read the full breakdown.
https://blog.blockstream.com/bitcoin-visibility-at-scale-new-upgrades-to-the-blockstream-explorer-api/

Bitcoin adoption keeps growing. Each wave brings new users and new expectations.

We just shipped a new release of the Blockstream app, focused on advanced user flows. Making air-gapped hardware wallet custody and 2FA-enhanced security smoother while keeping everything fast, focused, and open source.

Since 2016 Blockstream has been building the open-source foundations of Bitcoin wallets and infrastructure, and we continue funnelling it all into the Blockstream app so individuals everywhere can be empowered by Bitcoin self-custody.

https://blockstream.com/app/

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.

Learn about the full update: https://blog.blockstream.com/jade-plus-camera-update-faster-sharper-and-more-reliable-qr-scanning/

Q3 hit a new stride at Blockstream.

Simplicity launched on the Liquid Network, unlocking verifiable smart contracts. Core Lightning v25.09 and Greenlight boosted Lightning scalability, Explorer API powered new infrastructure, and Jade expanded self-custody worldwide. ⚡️

Dive into the full Q3 rundown for an inside look at product launches, research milestones, global self-custody growth, and the latest engineering progress from the Blockstream team. 👇

https://blog.blockstream.com/blockstream-quarterly-update-q3-2025/

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.

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.

We are building the future of finance on Bitcoin.

Full details: https://blockstream.com/press-releases/2025-11-18-blockstream-boosts-engineering-addition-distributed-labs-expertise/

Our Blockstream Holiday Sale is now live!

For a limited time, all Blockstream Jade devices are 21% off. Our biggest end-of-year offer.

Whether you're leveling up your own security or gifting Bitcoin self-custody to someone new, there’s no better moment.

https://store.blockstream.com/products/jade-plus

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 Peruvian Bull for the edit 🙏

https://store.blockstream.com/products/jade-plus

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.

2FA-protected Bitcoin, Liquid support, and 25% off @BlockstreamJade for the holiday weekend, all through our desktop app.

In the 90s they said RSA encryption was dangerous.

Adam Back thought the world was more dangerous without it and put it on a shirt.

Today we're bringing back the tee that challenged authority just by existing for a limited run the on Blockstream Store.

https://store.blockstream.com/products/rsa-t-shirt-2025-limited-edition

Blockstream Jade Firmware 1.0.38 Security Update 🛠️

https://x.com/BlockstreamJade/status/1995721980289667490

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.

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.

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. ⚡

https://blog.blockstream.com/core-lightning-25-12-boltzs-seamless-upgrade-experience/

Lightning ↔ Liquid swaps are live in the Blockstream app. 🌊

Pay LN invoices using LBTC & receive Lightning payments directly to your Liquid balance.

Update to 5.1.4 today:
https://blockstream.com/app/

Read the full announcement here:
https://blog.blockstream.com/enabling-lightning-payments-with-liquid-swaps-in-the-blockstream-app/

Bitcoin mainchain. Liquid protocols. Simplicity noscripting.

Blockstream's Explorer API is a foundation for building on all of it.

Now we're making that foundation more performant at scale for the next generation of Bitcoin applications.

What we're shipping in 25.12:

- QuickSync: 100x faster denoscriptor-based sync
- Simplicity transaction support live
- Transparent pricing, improved dashboard

Full story:
https://blog.blockstream.com/raising-the-bar-for-bitcoin-application-performance-with-the-blockstream-explorer-api/

While everyone debates whether Bitcoin can handle quantum computing, we published the research.

While exchanges hold your keys, we shipped better self-custody.

While Lightning "doesn't scale," we cut database latency 99%.

Blockstream’s Q4 finished the year in full sprint.

Get the full Q4 breakdown:

https://blog.blockstream.com/blockstream-quarterly-update-q4-2025/

Real-time Bitcoin and Liquid Network monitoring just got better.

Blockstream Explorer API now supports Electrum RPC on all paid tiers. Subscribe to addresses once and get instant notifications when payments arrive. No polling. No delays. No wasted API calls.

Perfect for exchanges, custody platforms, and payment processors.

lectrum RPC is now available across Basic, Advanced, and Enterprise tiers with production-grade rate limits.

Combine it with QuickSync for fast wallet synchronization on first load, then maintain real-time updates with Electrum RPC.

Learn more:

https://blog.blockstream.com/real-time-bitcoin-data-at-scale-blockstream-explorer-api-launches-electrum-rpc/