Computing on Bitcoin #61
October 17, 2025 - Week 42
Welcome to this week’s edition of Computing on Bitcoin News, where we highlight the latest breakthroughs driving Bitcoin’s evolution as a programmable platform.
From new bridges to collaborative experiments, the momentum keeps growing, let’s dive in.
Sergio Lerner and Ariel Futoransky from Fairgate Labs unveiled BATTLE, a DoS-resilient, capital-efficient optimistic bridge protocol built directly on Bitcoin. The design adapts the BATTLE tournament protocol with BitVM-style FLEX components and garbled circuits, enabling large-scale, trust-minimized dispute resolution without introducing new opcodes or external consensus.
fairgate.io/publications
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BATTLE for Bitcoin: A DoS-Resilient Bridge Protocol for Bitcoin
Ultimately, BATTLE demonstrates that large, permissionless committees -on the order of a thousand participants- can coordinate optimistic verification directly on Bitcoin without introducing new opcodes or external consensus. This positions BATTLE as a key building block for future Bitcoin rollups, sidechains, and interoperability protocols.
Alpen Labs and the Starknet Foundation announced a collaboration to build a shared Glock verifier on Bitcoin, a public good enabling cross-system verification and interoperability.
alpenlabs.io/blog
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Starknet & Alpen to build a shared Glock verifier on Bitcoin
Starknet will be the first of many reputable, mainstream systems to leverage the Glock verifier—alongside Alpen—to secure BTC deposits from their users. At the heart of this initiative is Strata, the layer that will coordinate verification across offchain systems such as Alpen and Starknet on Bitcoin. Strata will facilitate interoperability between these systems, laying the groundwork for a truly open Bitcoin financial ecosystem.
Fairgate is gearing up for November with two special BitVMX side events in Buenos Aires, timed around LABITCONF and DEVCONNECT. Both sessions will dive into how BitVMX powers real-world Bitcoin applications, giving builders and researchers a chance to connect and explore Fairgate’s evolving protocol ecosystem.
Event: Nov 9 / Palermo, Buenos Aires
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Unleashing Bitcoin's Potential for Real-World Applications with BitVMX
As LABITCONF wraps up, a fitting close to the weekend.
Event: Nov 16 / Palermo, Buenos Aires
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BitVMX, Garbled Circuits and Fairgate's Evolving Ecosystem of Protocols
Join us in this focused-event to explore how engineering practical solutions with BitVMX is shaping the future of disputable computing on Bitcoin.
As DEVCONNECT gets underway, start the pre-week warmup with a thorough yet relaxed update on everything BitVMX.
Cardano’s latest governance update under CIP-1694 marked a shift toward full community control and was accompanied by a joint demo by IOHK and Fairgate Labs, showing Cardano smart contracts running on Bitcoin via BitVMX and a UPLC-to-RISC-V compiler.
ainvest.com/news
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Cardano News Today: Institutions Bet on Cardano's Decentralized Leap, Driven by Governance and Bitcoin Interoperability
Concurrently, technical advancements included a demo by Input Output Hong Kong (IOHK) and FairGate Labs, showcasing Cardano smart contracts operating on Bitcoin via BitVMX and a UPLC-to-RISC-V compiler. This development enabled Bitcoin users to access Cardano-based tools, fueling broader discussions on blockchain interoperability.
That’s all for this week’s roundup of Computing on Bitcoin News.
Innovation on Bitcoin keeps accelerating, and we’ll be here to share the progress, ideas, and breakthroughs shaping its next chapter.
The Fairgate Team