Computing on Bitcoin #92
June 05, 2026 - Week 23

Welcome to a new edition of Computing on Bitcoin News!

Here are some of the latest developments from across the ecosystem.
Let's dive in!

01

A new article by Four Pillars examines Citrea’s architecture as a Bitcoin zk-rollup, focusing on its use of BitVM2, the Clementine bridge, and Bitcoin-based settlement.

x.com/FourPillarsFP
🔗 Citrea: An Engine That Puts Bitcoin to Work for Institutional Capital

Citrea is a project that attempts to shift the compromise point in one direction. Rather than extending the chain of trust, it rebuilds the utilization infrastructure into a form that the Bitcoin network itself can verify.

02

A new video by BitVMX introduces the Union Bridge on Rootstock Testnet, showcasing a bridge design built on BitVMX.

Union Bridge powered by BitVMX

youtube.com/@BitVMX-Bitcoin-Computation
Built jointly by Fairgate and Rootstock on top of BitVMX, the bridge lets users lock BTC, mint a wrapped asset on Rootstock, and redeem through on-chain fraud-proof verification, with no custodian involved at any step.

03

A new presentation by Alin Mihai Barbatei explores security considerations for BTCfi, and examines BitVM-based systems and the risks associated.

Alin Mihai Barbatei - Securing BTCfi

youtube.com/@ETHCluj
Securing BTCfi explores Bitcoin's move beyond digital gold. We revisit past vulnerabilities, examine L2s like Stacks, and emerging systems such as Citrea and Babylon, discuss BitVM's model, and assess the risks of bridging BTC into EVM.

04

A new article by BitcoinWorld examines how ZK-rollups and BitVM are expanding Bitcoin’s role beyond a store of value, enabling trust-minimized applications and Bitcoin-native DeFi.

cryptonews.net/news
🔗 The Programmable Pivot – How ZK-Rollups and BitVM are Launching Bitcoin-Native DeFi

Unlike previous attempts at Bitcoin DeFi that relied on centralized bridges or “wrapped” tokens, the new wave of ZK-rollups allows for trust-minimized smart contracts that settle directly on the Bitcoin mainnet.

Thanks for reading this edition of Computing on Bitcoin News!
New architectures and models continue to unlock broader possibilities for scalability, interoperability, and decentralized applications. We’ll keep following the projects and research pushing these boundaries forward.

Until next week!
The Fairgate Team