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Did you know that if you create a transaction with 1 input and 1 P2A output, the transaction size becomes 64 bytes? This is non-standard due to a vulnerability in Bitcoin's Merkle tree. That's why we add an empty OP_RETURN output to solve this issue.

This conference is going to be amazing! Catch my talk on Wednesday at 11:50 AM on the Genesis Stage: "How Citrea Enables ₿apps" Also, don’t miss the Citrea × Galaxy Mixer Night tomorrow. it’s going to be a great time! lu.ma/w45hiznv

Garbled circuits are a great alternative to BitVM, they eliminate large disprove transactions and significantly reduce proof sizes. But off-chain costs were high, requiring ~50GB of data per deposit. We can solve this with small changes to current Clementine design, which needs

If you’re in Bitcoin Vegas and bored of the corporate and government BS, come listen to Ekrem BAL on the Genesis stage and me on the Open Source stage 🫡

We’ve implemented Fq::mul in 1.5M gates. Verifying a Groth16 proof takes ~1400 Fq::muls, so a full Groth16 verifier would require around 2.1B gates without optimizations! This falls within feasible limits, so sooner than you think... Huge thanks to our BitVM team, they’ve become

Just coming up for air after Vegas - hanging with the BitVM boyz (+ Yovela!) definitely a highlight ✨

Introducing Crest, the Bitcoin trading app that fixes what others broke. Crest is the most intuitive Bitcoin trading app, offering low-cost and full control over your assets without any custodians or intermediaries. Better app for better money 🧵

Today we introduce Clementine V2, the next significant upgrade to our current BitVM2 based Clementine, coming after mainnet. Clementine V2 completely removes liquidity requirements, made possible by three key papers: 1. rubin.io/public/pdfs/de… by my Delbrag utilizes

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The agenda is live for Bitcoin Research Day NYC on June 26, 3PM @Pubkey. Talks on BitVM2, Garbled Circuits, Quantum Bitcoin, & more, plus good bites and networking! Featuring Ekrem BAL, my, ren (wassie arc), Hunter Beast & yah-noosh Apply to join: lu.ma/uonsuvwl

LIVE: BITCOIN RESEARCH DAY | Citrea @pubkey x.com/i/broadcasts/1…

Thread for Bitcoin Research Day W/ Citrea PUBKEY First up, Ekram Bal of OP_RETURN BitVM fame... Discussing using non-standard transactions as ephemeral anchors for BitVM.

Blockspace Media Ekrem BAL my ren (wassie arc) Hunter Beast yah-noosh Will Foxley Gabe 博仁 Parker 🍊🍋 First up, we heard from Citrea Co-Creator,Ekrem BAL, who covered "Improvements to BitVM2". Ekrem talked about watchtower-based Bitcoin light client, TOOP, and our newest R&D for Clementine V2.

Our BitVM team made a lot of contributions to BitVM2, just look at this thread! :) They have a deep understanding of implementing a ZK verifier, and they’ve implemented the garbled circuit required for BitVM3 in just one month. Build mode: on.

When Citrea started raising money to build a rollup on Bitcoin, they were widely dismissed by investors - and even  called “scammers” by folks who assumed the unknown team “wasn’t good enough” to build on BitVM. Within a year, the young team had made several critical

We’re really approaching a production-ready BitVM-based bridge. Private audits are wrapping up, the trusted setup ceremony is next, and mainnet is closer than you think.

If you want to learn more about the story of Citrea or the OP_RETURN drama, check this out 👇 Also, thank you Isabel Foxen Duke⚡️ I had a great time!

To be clear, this attack only affects the RSA-based BitVM3 described in Liam’s post. The schemes we’re working on use the well-known cut-and-choose paradigm and are unaffected. With a simple zkSNARK, they can also be made efficient on Bitcoin. See: x.com/ekrembal_/stat…

fyki David Seroy 🏔️, Groth16 based GC is already practical today. And since it’s publicly verifiable (unlike DV-SNARK) you get some nice properties when building a bridge. Right now non-free gate count is ~2.7B, with cut-and-choose the one-time setup cost is ~400GB storage per