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Bitcoin and digital asset infrastructure

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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 never meet. Here is what that means when someone attacks it.

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 across unrelated wallets at once. Blockstream is building a second implementation.

Searching for SHRINCS Parameters

Blockstream Research swept 25,935 parameter candidates to make SHRINCS's stateless fallback roughly a quarter smaller than SLH-DSA. An open-source explorer lets anyone verify the choices or find better ones.

Jade Is Unaffected by the Recent Coldcard Vulnerability

A direct answer for Jade owners on the Coldcard Mk3 advisory, plus a four-step guide to moving bitcoin onto freshly generated keys.

Building on Simplicity: What Ships Today, What's Coming Next

Simplicity is live on Liquid mainnet. Here's what developers can build today, and what's coming next.

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 visibility for Liquid transactions. Nodes across the network report when they have seen a transaction, and this service exposes that data. As an integrator, you can use it as

Blockstream Quarterly Update - Q2 2026

From a proposed post-quantum opcode to a reimagined Jade lineup and a Liquid roadmap with dates, here's what Blockstream shipped in Q2 2026.

Welcome to the New Simplicity

Simplicity has a new home. Explore the redesigned simplicity-lang.org.

What the Zcash Orchard Bug Reveals About Verifiable Supply

A four-year-undetected soundness bug in Zcash's Orchard pool exposed the cost of hiding the supply. Bitcoin and Liquid keep supply verifiable by design.

Rusty Russell: Eleven Years of Lightning at Blockstream

With the release of Core Lightning 26.06 “Quantam-Resistant Lightning Channel”, including bwatch, a major architectural contribution co-designed by Sangbida Chauhuri and Rusty Russell, an era comes to a close. When Rusty Russell made his first commit on May 26, 2015, it carried the humble description:

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, refining node operations, and polishing the edge cases of liquidity management.

The Jade Lineup, Reimagined

Discover Jade Core and Jade Plus, the ultimate open-source hardware wallets designed for both newcomers and advanced users.

Simplicity Developers Show Off at the Turin Hackathon

Six teams built real smart contracts on Liquid in one weekend at the Blockstream Turin Hackathon. Here's what they made.

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.

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.