When you run a Bitcoin node, you can prove the 21 million cap yourself. Every block. No trust required.

The Zcash Orchard bug, undetected for four years, is a reminder of what you give up when supply verifiability is traded for privacy.

The Liquid Network shows there is another way. Strong privacy with publicly verifiable supply.

https://blog.blockstream.com/what-the-zcash-orchard-bug-reveals-about-verifiable-supply/

Simplicity's site just got a full redesign.

Simplicity lets you prove exactly how a contract behaves before it goes live. No surprise fees, no transactions failing mid-execution. The security guarantees are part of the language, not bolted on after.

Live on Liquid mainnet, running real financial contracts, and built for the developers and institutions building high-assurance Bitcoin applications.

https://blog.blockstream.com/welcome-to-the-new-simplicity/

New 0-conf infrastructure for Liquid and other Elements-based deployments is here.

Swap services, exchanges and applications that accept Liquid payments now have access to near-instant transfer times.

Details in the technical explainer below.

https://blog.blockstream.com/0-conf-for-elements-and-liquid-a-technical-explainer/

Simplicity has been live on Liquid mainnet for nearly a year. Now the full developer toolchain is here.

Build high-assurance Bitcoin contracts in a zero-friction environment with autocomplete, instant testing, post-quantum signatures, and a finalized lending template.

Here's what builders can ship today and what's coming next.

https://blog.blockstream.com/building-on-simplicity-what-ships-today-what-is-coming-next/

The Blockstream Jade lineup (Jade Classic, Jade Core, and Jade Plus) is unaffected by the recently reported RNG issue with another company.

We are preparing a blog post outlining best practices for anyone moving bitcoin to a new wallet, including how to generate fresh keys, verify addresses, conduct a test transaction and securely retire an old recovery phrase.

Frontier LLMs are uncovering previously overlooked vulnerabilities, and Blockstream is using the same tools to strengthen the QA reviews of our product suite.

But AI is not a substitute for open source: transparent hardware and firmware enable independent scrutiny, faster disclosure and quicker fixes. This is why Blockstream Jade continues to champion both open source software and hardware.

https://x.com/Blockstream/status/2083030032927306010

Jade is unaffected by the recently disclosed RNG vulnerability affecting other hardware wallets.

Every Blockstream Jade recovery phrase comes from multiple independent entropy sources.

On an affected device? Here's how to migrate calmly, step by step:

https://blog.blockstream.com/jade-unaffected-coldcard-vulnerability/

Post-quantum signatures aren't one-size-fits-all, and now developers can find the SHRINCS setup that fits theirs.

Blockstream Research's explorer lets you tune signature size, signing cost, and verification cost to match your wallet, node, or miner.

Their sweep of 25,935 candidates found a fallback signature about 2 KB smaller than NIST's SLH-DSA, and 28% cheaper to verify.

https://blog.blockstream.com/searching-for-shrincs-parameters/

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: https://blog.blockstream.com/announcing-blockstream-swaps/

Beta access: https://blockstream.typeform.com/to/y1L5wyZT

Jade doesn’t use a physical secure element.

We just published a full post on how the Virtual Secure Element works:
https://blog.blockstream.com/jade-virtual-secure-element/