Run Jade fully air-gapped on your phone. Unlock, receive, and send all pass through QR codes between Jade and the Blockstream app. Every address and transaction gets verified on screen before you use it.

blockstream.info has been rebuilt, for Bitcoin and @Liquid Network Watch the next block fill. Read real analysis on any transaction. Check Liquid's backing yourself, in one dashboard. Everything new:

Blockstream

Our Bitcoin and Liquid Block Explorer, Reimagined

Blockstream Explorer has answered "did my transaction go through" in under a second since 2018. It now shows a lot more of what is happening on-cha...

2% allocation. If Bitcoin doesn't perform, the portfolio recovers. If it continues toward $200T, the effect is outsized. @npub1qg8j...24kw on why pension funds don't need to form an opinion on how far Bitcoin goes, just stay the course and don't rebalance.

On 15 August 1971 the dollar left gold, and a savings account stopped holding its value. @npub1h882...pz20 walks through what changed that night and why it still matters. Bitcoin in self-custody with Blockstream Jade is money nobody can dilute or freeze. Full episode:

You can build a Bitcoin wallet with nothing but a coin and a word list. Jade does the one step you cannot do by hand. Flip a coin 121 times, find the words offline, and pick your final word from the options Jade calculates. Here is what rolling your own entropy actually looks like. Every method written up, coins, dice, poker cards, even tarot, with the binary word tables you need to do it offline. help.blockstream.com/generate-recovery-phrase-offline

Jade air-gapped QR support is new in the Blockstream desktop app. Run Jade Plus fully air-gapped and the device never touches your computer. PIN unlock, wallet import, address checks and signing all happen over QR codes, read by the camera on the device.

Jade firmware 1.0.41 is out. It contains security updates and every user should upgrade as soon as they safely can. Jade is not affected by the Coldcard random number vulnerability. The reasoning, and everything we changed, is in the post.

Blockstream

Reflections on the Coldcard Fallout from the Jade Team

Firmware 1.0.41 arrives amid the Coldcard fallout and a wave of AI-driven security scanning. The Jade firmware team explains how Jade stays safe.

Blockstream Jade can hold a duress PIN, a second PIN separate from your real one. Enter it under pressure and Jade erases the wallet, so what's handed over is an empty device. There is no undo. Back up your recovery phrase first, and choose carefully when to use it. How to enable a duress PIN on Jade: https://help.blockstream.com/blockstream-jade/add-more-security-functionality/enable-a-duress-pin

Jade doesn’t use a physical secure element. We just published a full post on how the Virtual Secure Element works:

Blockstream

How Jade Protects Your PIN Without a Secure Element

Jade has no secure element chip. It has a Virtual Secure Element instead, which splits the ability to decrypt your wallet across two parties that n...

Your recovery phrase sits encrypted on the device. Unlocking it needs the PIN you type on Jade and a key share from a blind oracle. Neither is enough by itself. The oracle never sees the real PIN or any wallet data. It only gets a scrambled version that includes a secret unique to that particular Jade. Three wrong PINs and both sides wipe. Device and oracle. After that the encrypted data is permanently unusable without the recovery phrase. A locked Jade holds nothing an attacker can use alone. Everything is open source, firmware, hardware, and the oracle. You can run the oracle yourself, or skip it completely and use SeedQR or type the recovery phrase.

A passphrase adds an advanced layer of protection to the Bitcoin self-custody setup you already have, with nothing to buy. Your existing funds don't move on their own. Back up the passphrase as carefully as your recovery phrase, then send them across. Lose the passphrase and the funds are gone, even if you still hold your recovery phrase. It isn't a password you can reset, it's part of the key. Jade shows an 8 character fingerprint each session. If it doesn't match, you've typo'd. Passphrases are the BIP-39 standard, not a Jade feature, so the same one works on any wallet that supports it. Case and spaces count. Step by step setup on Jade: https://help.blockstream.com/blockstream-jade/add-more-security-functionality/add-a-bip39-passphrase-for-jade

Announcing Blockstream Swaps. Trustless atomic swaps for Bitcoin, Liquid, and Lightning. Hold BTC or LBTC and pay Lightning invoices without managing channels or inbound liquidity. Reach Lightning from cold storage while keeping full control of your funds. Built as a complementary service to strengthen ecosystem resilience and redundancy. Currently in beta. Full announcement:

Blockstream

Announcing Blockstream Swaps

A swap moves value between Bitcoin's layers without a custodian in the middle. When the provider running them goes offline, Lightning stops working...

Beta access:

Swaps Inquiry

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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.

Post-quantum signatures aren't new, they've existed for about 45 years. @npub1qg8j...24kw 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.

Core Lightning 26.06 ships with bwatch: a new event-driven, in-memory block-watching plugin. Your node registers its watches and catches up to the chain near-instantly. Faster startups, lighter footprint, crash-resistant, and built to scale. ⚡

Blockstream

Core Lightning 26.06: "Quantum-Resistant Lightning Channel”

Following on the heels of our last major release, Core Lightning’s 26.06 version focuses heavily on paving the way for the future of payments, re...

Quantum is the Bitcoin Security Consortium's first focus, and Blockstream Research has spent the last year working toward a quantum-safe Bitcoin. Check out the thread below to learn about some of our initiatives, starting with OP_CHECKSHRINCS. 🧵 OP_CHECKSHRINCS is a proposed opcode for verifying SHRINCS, a hash-based post-quantum signature scheme. At 7x smaller than the NIST standard, it's small enough to actually work on Bitcoin.

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.

Hash-based signatures are the near-term answer. Lattices are a strong potential long-term play: eventually ~50% smaller signatures and faster verification, and unlike hash-based they preserve multisig, threshold, and HD wallets. Here's how they work:

Blockstream

Schnorr, But with Vectors – Lattice-based Signatures Explained

Lattice-based cryptography is a deep and promising direction of post-quantum cryptography, allowing far more than just replacing digital signatures.

How worried should Bitcoin holders be? Today's best quantum hardware can barely factor 21. Taproot already has a quantum-safe path built in via its script tree. Blockstream Research ran the first post-quantum tx on the @Liquid Network in March 2026.

Blockstream

Quantum Computing and Bitcoin: The Threat Explained (ELI5)

A plain-language explainer on what quantum computers actually threaten in Bitcoin, how close the threat is, and what engineers are already building...

None of it works without solid cryptography. Blockstream Research are key contributors and maintainers of libsecp256k1, behind every Bitcoin signature, and libsecp256k1-zkp, powering Confidential Transactions on Liquid. Let us proceed together apace. Onward.

Blockstream

Blockstream Research Brings libsecp256k1-zkp Back Up to Speed

Blockstream Research has completed a significant maintenance milestone: bringing libsecp256k1-zkp fully up to date with 2.5 years of improvements f...

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.

Today, the best quantum hardware can just about factor 21 (3 x 7). Blockstream Research hired Mikhail Kudinov, one of the cryptographers behind NIST's post-quantum signature standard, and we have already proposed OP_CHECKSHRINCS, an optimized hash-based signature opcode for Bitcoin. How we are making Bitcoin post-quantum secure:

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.

New 0-conf infrastructure for Liquid and other Blockstream Elements - based deployments is here. Swap services, exchanges and other applications that accept Liquid payments now have access to near-instant transfer times. More in the technical explainer. 👇

Blockstream

0-Conf for Elements and Liquid: A Technical Explainer

New 0-conf infrastructure for Liquid and other Elements-based deployments is here. As a Blockstream-operated service, it aggregates mempool visibi...

Managing a Lightning node used to mean living in the command line. The Core Lightning app puts your channels, fees, and peer control in one screen. Your node, your rules. Core Lightning runs at home in one click on @npub1aghr...mhct or @Start9. Run the app from source:

GitHub

GitHub - ElementsProject/cln-application: Official core lightning application by Blockstream

Official core lightning application by Blockstream - ElementsProject/cln-application

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