Computing on Bitcoin #42
June 06, 2025 - Week 23
Welcome to Computing on Bitcoin News — your weekly pulse on the technologies expanding on the most relevant developments from across the ecosystem: L2s, ZK tech, cross-chain bridges, and more.
Check it out and let us know what you think!
Fairgate made waves at Bitcoin 2025 in Las Vegas with major protocol milestones, including bridging Bitcoin Ordinals to Cardano. The team unveiled TOOP and ESSPI, deepened cross-chain conversations, and solidified BitVMX’s role in Bitcoin programmability.
fairgate.io/blog
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Fairgate at Bitcoin 2025: Bridging the Future of Bitcoin Interoperability
Over three packed days, we unveiled new breakthroughs, forged key partnerships, and engaged directly with the builders shaping the future of Bitcoin programmability and scalability
Citrea is advancing Clementine v2 by integrating Garbled Circuits and Fairgate’s TOOP, eliminating collateral and liquidity needs for Bitcoin bridges. This upgrade promises a cheaper, trust-minimized, and more scalable cross-chain solution.
blog.citrea.xyz
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R&D for Clementine v2: Eliminating Collateral and Liquidity Requirements with Garbled Circuits and TOOP
Today, we’re introducing our approach to improving Clementine using Garbled Circuits and Transfer of Ownership Protocol (TOOP) by constructing a SNARK verifier circuit with logic gates.
We're also announcing the open-sourcing of this garbled SNARK verifier to help accelerate research into Bitcoin bridges that don't require trust, collateral, or liquidity constraints.
BOB released a new series of introductory articles aimed at making its architecture more accessible. In this first installment, they explain what a hybrid Layer 2 is and how BitVM enables secure, verifiable computation without modifying Bitcoin's base layer.
blog.gobob.xyz
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BOB 101 - What is a Hybrid Layer 2?
Imagine you have a big bank vault full of gold coins. It’s incredibly secure and pretty much unbreakable. But the vault has one problem, it only lets you put in or take out coins. This means you can’t do more complex things like earning interest.
That’s essentially what Bitcoin is like today. It’s a great store of value, but not as good for doing the more advanced stuff you might have seen in DeFi.
blog.gobob.xyz
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BOB 101 - What is BitVM?
Today we’ll be delving into BitVM—a new way to run programs on Bitcoin without changing any of the core consensus rules that have made it the biggest, most secure and most well known blockchain. By the end of this article, you’ll see how BitVM plays a vital role in BOB’s Hybrid Layer 2, supporting secure, trust-minimized Bitcoin DeFi for everyone.
Charles Hoskinson says Cardano is becoming the go-to dev platform for Bitcoin Script, thanks to BitVMX. The integration offers scalable, smart contract support with cross-chain potential.
timestabloid.com
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Charles Hoskinson: Cardano Is Becoming the De Facto Dev Platform for Bitcoin Script
In a recent statement shared via a tweet by the Angry Crypto Show account, Cardano founder Charles Hoskinson declared that Cardano is rapidly becoming the primary development platform for Bitcoin script through the integration of BitVMX.
A new post highlights the rapid growth of Bitcoin DeFi and how most investors are still unaware of its momentum. It outlines the shift toward trust-minimized solutions built directly on Bitcoin, naming BitVM as a key innovation enabling smart contract-like functionality without altering Bitcoin’s core protocol.
medium.com/@alertforalpha
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Bitcoin DeFi Is Exploding — And Most Investors Have No Clue
Most crypto investors have no idea what’s happening right now. A quiet revolution is brewing — not on Ethereum, not on Solana — but on Bitcoin itself.
It’s called Bitcoin DeFi, and according to early Bitcoin OGs like Dan Held, this might be the second biggest bet of their entire careers, second only to Bitcoin itself.
That’s it for this week’s Computing on Bitcoin News.
Thanks for being part of this growing community—until next week, keep shipping, experimenting, and building the future on Bitcoin.
The Fairgate Team