Blockstream

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. ⬇️ https://blossom.primal.net/0780be13c4f1066ec185f479412855a0ba58ecf0d141a23c59b1a97936a700ec.mp4 Android gets smoother pairing with Jade and faster signing in watch-only wallets. Bitcoin buys now show live status updates in the transaction list. You can also sweep funds from closed Lightning channels into your on-chain wallet with one tap. On iOS, watch-only wallet setup is now faster. Just paste or scan your xpub or descriptor and the app does the rest automatically detecting the relevant network and account type to create the wallet. You can also rename or remove wallets right from the dashboard with zero friction. Version 5.0.9 is live in the App Store and on Google Play. Whether you’re just starting with Bitcoin or already exploring Lightning and layer-2 with nostr:nprofile1qqsfjzteswm5cuyqpvvz40r0vszx4dcyql5u40xkeats5w9d48hht4guz0cnd, the Blockstream app helps you do it all in one secure, open source wallet. https://blockstream.com/app/

Cryptography Lead at Blockstream Research Jonas Nick is raising the bar for Bitcoin education with Provable Cryptography for Bitcoin: An Introduction. A new hands-on workbook packed with definitions, proofs, and exercises. Onwards! Want to dive in? The workbook is now live. Check it out on GitHub and start exploring formal proofs, definitions, and exercises today. https://github.com/cryptography-camp/workbook/releases

“$100,000 is way too cheap and I expect it will end the year much higher. And we get between $500,000 and $1M during this cycle.” - nostr:nprofile1qyw8wumn8ghj7mn0wd68yttjv4kxz7fwwak8vuewwdcxzcm9qythwumn8ghj7mn0wd68ytnxd46zuamf0ghxy6t6qqsqyredyxhqn0e4ln0mvh0v79rchpr0taeg4vcvt64te4kssx5pc0sk99k65 on the Milk Road Daily Pod https://blossom.primal.net/7817781f3bf0721aa182456c7a6a32e0b63f98fffd431ed04a2b267bd3195bd2.mp4 Ready to stack before $500K–$1M Bitcoin becomes reality? Get the Blockstream app. It is the easiest way to buy, secure, and manage Bitcoin in self-custody. https://blockstream.com/app

Upgrade your Bitcoin security without upgrading your spend. Jade Plus Black is 15% off until Sept 7 at the Blockstream Store.

Developing open-source tech to scale Bitcoin has been Blockstream’s focus from the start. That’s why we’re proud to support nostr:nprofile1qqsxhwmaw842y4zzzk580cfke4l5jr6xyh44v3v6pk59dnyzjm2a7vqcd5flv by nostr:nprofile1qyx8wumn8ghj7cnjvghxjmcpzamhxue69uhk2cmvd9c8xefwwp6kytmjv4kxz7gqyr9utmmtq89arlazew26j48sfsu94ymvr2rwrwuuehev7r6wh6kvkuycn9n, an OG Core Lightning contributor. We’ve sent our Head of Design Basak Haznedaroglu to mentor & judge the Scaling Hackathon design track. Scaling BTC means better UX, design, and tools that make it accessible to anyone. Greenlight dev Peter Neuroth will also be on-site at BTC++ sharing Lightning knowledge, and we’re giving away Jade hardware wallets as hackathon prizes. https://blockstream.com/jade/your-jade/

Simplicity is now live on the nostr:nprofile1qqsfjzteswm5cuyqpvvz40r0vszx4dcyql5u40xkeats5w9d48hht4guz0cnd mainnet. Still waiting on OP_CAT? Still debating OP_CTV? Still dreaming about OP_VAULT? Start building. https://blossom.primal.net/d6a503d4510152dd54328f04d8b1abfe166b8381b6cb7adb6738b6205537ad5c.mp4 You don’t need a soft fork to get started. Every opcode you’ve ever wanted can be built today with Simplicity. Write in SimplicityHL → compile to Simplicity → deploy to nostr:nprofile1qqsfjzteswm5cuyqpvvz40r0vszx4dcyql5u40xkeats5w9d48hht4guz0cnd. nostr:nevent1qvzqqqqqqypzpy3fg4melylapvm4nug40c7elgs08lfycju09084yr9v7ey67amdqythwumn8ghj7un9d3shjtnswf5k6ctv9ehx2ap0qyvhwumn8ghj7urjv4kkjatd9ec8y6tdv9kzumn9wshsqgyqynky8prepu8wwf6n3vrxw7dj90w0zyemprnxggx0q3zm0yvfaytm3v2e

Core Lightning v25.09 “Hot Wallet Guardian” is here! Bookkeeper, first introduced to CLN as a plugin by nostr:nprofile1qyx8wumn8ghj7cnjvghxjmcpzamhxue69uhk2cmvd9c8xefwwp6kytmjv4kxz7gqyr9utmmtq89arlazew26j48sfsu94ymvr2rwrwuuehev7r6wh6kvkuycn9n 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/ Since v25.05, Core Lightning has merged 321 commits in 76 days. A warm welcome to 4 first-time contributors who are helping CLN continue evolving with more stability, usability and developer power. Onward. ⚡

Jade Product Manager nostr:npub15r8c6dqx2x92p688c8jsmhuxeg3tvyjspd4em60v2g4qxxh0pdrqw3mk4g explains how multisig adds an extra layer of protection, keeping Bitcoin in self-custody secure even if one key is compromised. https://blossom.primal.net/35fc09e718dbf41cb224de78ddcdcb35cf34af35b61e9b21793cd456887182a8.mp4 Running a Jade on its own offers powerful self-custody. Running a Jade or two alongside other open-source tools in a multisig setup provides elite Bitcoin security. nostr:nevent1qvzqqqqqqypzpy3fg4melylapvm4nug40c7elgs08lfycju09084yr9v7ey67amdqythwumn8ghj7un9d3shjtnswf5k6ctv9ehx2ap0qyvhwumn8ghj7urjv4kkjatd9ec8y6tdv9kzumn9wshsqgz3keepkcrtqa5rscud9424sfh4hh0xyaxrefy4sg80f4pxhplu0yuz8qau

STOP STARING AT THE LOGO AND START STACKING WITH THE BLOCKSTREAM APP. GOT BITCOIN? UPGRADE YOUR SECURITY WITH JADE PLUS. 20% OFF IN-APP UNTIL SEPT 7.

The future of finance runs on Bitcoin. 🌎⚡ At WebX2025 this weekend, @adam3us explained how Bitcoin is becoming the operating system for capital markets. Here’s the vision 👇 --- Today's financial system is fragmented: ■ 180+ fiat currencies creating friction ■ Banks charging 3-7% for international transfers ■ 2-5 day settlement times ■ Counterparty risk at every step Bitcoin fixes this with a unified platform for money and value transfer: The Bitcoin Operating System. --- The Bitcoin Operating System uses a layered approach: 🧱 Base Layer: Immutable settlement secured by PoW 🌊 Liquid Network: Financial layer for assets and securities ⚡ Lightning: Payment layer for instant global transfers 📱 Enterprise Apps: Custody, tokenization, payments, settlements --- This isn't theoretical. The internet became the OS for information by creating unified standards. Bitcoin is doing the same for money. One global standard for value transfer and programmable finance. --- Blockstream's track record for building the future: 🔹 First Bitcoin Layer 2: nostr:nprofile1qqsfjzteswm5cuyqpvvz40r0vszx4dcyql5u40xkeats5w9d48hht4guz0cnd >$4B | 23,225 BTC TVL 🔹 Pioneering Lightning R&D with Core Lightning 🔹 Enterprise custody, tokenization, and treasury solutions --- Blockstream Enterprise solves the three barriers to Bitcoin adoption: 🔒 Secure Bitcoin treasury and custody 🪙 Tokenization and smart contracts 🔗 Sidechains-as-a-Service --- Enterprise Custody: Brings cryptographic security with the usability enterprises need. 🔧 Configurable controls for speed, security, or convenience 👥 Segregated accounts & spending rules 🏛️ Policy engine to remove single points of failure 🔗 API integrations with existing systems --- Asset Management Platform (AMP): AMP + Simplicity unlock programmable enterprise finance on Bitcoin: 🪙 Tokenized assets 📜 Smart contracts with Simplicity from Blockstream Research 🏛️ Automated compliance checks --- Liquid as a Service: Customizable federated sidechains enable stakeholders to set rules for: ⏱️ Settlement times 🌿 Network fees ⚖️ Compliance regimes --- The numbers show institutional adoption accelerating: ☑️ Bitcoin ETFs: $150B | 870,928 BTC+ in assets 🏛️ Corporate treasuries: 900,000+ BTC 🌍 Nation-states: 300,000+ BTC 🏦 Traditional finance entering rapidly --- From individual HODLers to institutions managing billions, Blockstream builds secure, scalable infrastructure to integrate Bitcoin into global finance. --- The alt-coin narrative is dead. The future is Bitcoin: secure, layered, and programmable. While others build on experimental blockchains, Blockstream builds on the most secure network ever created. 🚀

Simplicity is live on the nostr:nprofile1qqsfjzteswm5cuyqpvvz40r0vszx4dcyql5u40xkeats5w9d48hht4guz0cnd. To celebrate, we’re bringing back the Blockstream Research t-shirt that sparked the meme and carried it into the Bitcoin spotlight. 9 combinators. Pure Bitcoin minimalism. Premium threads built to last. Available now on the Blockstream store. 🧵⬇️ Simplicity goes live on nostr:nprofile1qqsfjzteswm5cuyqpvvz40r0vszx4dcyql5u40xkeats5w9d48hht4guz0cnd, the shirt returns. https://store.blockstream.com/products/simplicity-t-shirt

Gold is a $20T market. Bitcoin is $2T. Parity means $1M Bitcoin and that may still understate the upside. Our CIO Sean Bill explains why nostr:nprofile1qqsphtcc46rrelvptfm4c2y58k85alnam0lfu773mgwdmtynka0zspsql7emy 2025 in Las Vegas. https://blossom.primal.net/c95e843ad89f2724be33c338702ce6fe7684b1fa6aff4eb92cde7155fb793521.mp4

The Blockstream app brings the tools you need for Bitcoin self-custody into one place. Download today to get 20% off the Jade Plus hardware wallet in-app until Sept 7.

More than half the world is locked out of the global economy. No bank, no contract, no access. nostr:nprofile1qyw8wumn8ghj7mn0wd68yttjv4kxz7fwwak8vuewwdcxzcm9qythwumn8ghj7mn0wd68ytnxd46zuamf0ghxy6t6qqsqyredyxhqn0e4ln0mvh0v79rchpr0taeg4vcvt64te4kssx5pc0sk99k65 breaks down why Bitcoin’s real market is billions strong and why the upside is still ahead. https://blossom.primal.net/aa250f540f60924cfa032c6a110ed4bb7bdc2566b3b751c7ba29c767514548e6.mp4 You don’t need a bank to be part of the global economy. The Blockstream App gives anyone with a phone access to real Bitcoin self-custody no permission required. https://blockstream.com/app

Jade Plus is the only Bitcoin hardware wallet with Genuine Check technology a feature that lets you verify your device is authentic before every use. Because in Bitcoin, security means trusting no one and verifying everything. https://blossom.primal.net/7b3b1c61d2b351df70444e8919ad280ce850dad372d3763e85572468167ac812.mp4 Jade Plus is fully open source, Bitcoin only, and the only hardware wallet with Genuine Check. Secure yours today ⬇️ https://store.blockstream.com/products/jade-plus

On this day in 2008, Satoshi Nakamoto emailed nostr:nprofile1qyw8wumn8ghj7mn0wd68yttjv4kxz7fwwak8vuewwdcxzcm9qythwumn8ghj7mn0wd68ytnxd46zuamf0ghxy6t6qqsqyredyxhqn0e4ln0mvh0v79rchpr0taeg4vcvt64te4kssx5pc0sk99k65 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. https://blossom.primal.net/49544ca48999fe5ca9747a6ca55979cec2a3fc095db343c9013bb045fb64bf83.mp4

READY. SET. GO! 🚀 Core Lightning v25.09rc1 is tagged and ready for testing before the final release! ⚡️ We’re inviting the open-source community to try it out and share feedback with the project. Testing and collaboration are what power open-source projects like CLN. 🔗👇 If you run a Lightning node, now’s the time to dive in. Exploring the new features and sharing feedback makes CLN stronger. https://github.com/ElementsProject/lightning/releases/tag/v25.09rc1

In this clip, nostr:nprofile1qyx8wumn8ghj7cnjvghxjmcpz4mhxue69uhk2er9dchxummnw3ezumrpdejqqg9qe7xngpj332sw3e7pu5xalpk2y2mpy5qtdww7nmzj9gp34mctgc6q3jzg clears up a common mistake: Your hardware wallet isn’t where your Bitcoin lives, it’s just how you use it. Your seed words are the Bitcoin. That’s why serious Bitcoiners back them up on metal, not paper. https://blossom.primal.net/2331e82f5572041a6179c1504aac4b8236e791776386fd001c51cba9bc7b43e7.mp4 Protect your seed with Blockstream Metal. Fireproof, waterproof, offline backup. https://store.blockstream.com/products/blockstream-metal-offline-backup

Following the launch of Simplicity on the nostr:nprofile1qqsfjzteswm5cuyqpvvz40r0vszx4dcyql5u40xkeats5w9d48hht4guz0cnd mainnet, Blockstream Research Director Andrew Poelstra and Blockstream CEO nostr:nprofile1qyw8wumn8ghj7mn0wd68yttjv4kxz7fwwak8vuewwdcxzcm9qythwumn8ghj7mn0wd68ytnxd46zuamf0ghxy6t6qqsqyredyxhqn0e4ln0mvh0v79rchpr0taeg4vcvt64te4kssx5pc0sk99k65 joined nostr:nprofile1qy88wumn8ghj7mn0wvhxcmmv9uq3xamnwvaz7tmsw4e8qmr9wpskwtn9wvhsqgqrt03njat5wshkxcnrsdpuwfadmjvy0p8edx9hu3er2hvhulee5yszr23g to discuss its capabilities and the STARK verifier built directly in the language. Details 👇 https://blog.blockstream.com/blockstreams-adam-back-and-andrew-poelstra-discuss-simplicity-on-liquid-with-starkware/

Bitcoin payments have levelled up. nostr:nprofile1qyw8wumn8ghj7mn0wd68yttjv4kxz7fwwak8vuewwdcxzcm9qythwumn8ghj7mn0wd68ytnxd46zuamf0ghxy6t6qqsqyredyxhqn0e4ln0mvh0v79rchpr0taeg4vcvt64te4kssx5pc0sk99k65 explains how trustless layer-2 swaps between the nostr:nprofile1qqsfjzteswm5cuyqpvvz40r0vszx4dcyql5u40xkeats5w9d48hht4guz0cnd and Lightning enable payments that are fast, private, and even possible offline. Try it on nostr:nprofile1qqswe03hyye2jv3msylwkj8cml8d4m9qpc5g0tccrvrrcm86z0kcagg0zjv3w, nostr:nprofile1qyxhwumn8ghj7mn0wvhxcmmvqydhwumn8ghj7mn0wd68yttsw43zuum9d45hxmmv9ejx2asqyqlnlaadkwg4n3pvp2sk657qfqalh7k40hez4857jdj2xpn5r6ev7t32q08, nostr:nprofile1qyxhwumn8ghj7cnjvghxjme0qyt8wumn8ghj7etyv4hzumn0wd68ytnvv9hxgtcqyzj8g4mj9cgt5w38r7l8qsp9ng7ymgk02wlarcvczwppf534qe8uyx8m0gd, and Misty Breez by nostr:nprofile1qyt8wumn8ghj7etyv4hzumn0wd68ytnvv9hxgtcpzamhxue69uhkvun2daekstnwdaehgu339e3k7mgqyzt3r5dt4qr28g59lulg05t4jqkz7fg8gxrqm8r9jq7gkh5x867cz3f3ytq. https://blossom.primal.net/428cf50a271f6f842edfe0e9e21967348e3ae4cfe3e43b68f6a5ec22d337c5ad.mp4