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Computing on Bitcoin #68
December 05, 2025 - Week 49

Welcome to the latest edition of Computing on Bitcoin News.
Each week, we spotlight the latest developments at the intersection of Bitcoin and decentralized infrastructure.
Let’s dive in.

01
BOB Cuts BitVM3 Onchain Costs by 87%

BOB announced a major engineering milestone, implementing cut-and-choose verification for BitVM3 using VSSS and adaptor signatures, reducing assert-transaction costs by roughly 87%.

gobob.xyz/blog
🔗 BOB Lowers Onchain Costs for BitVM3 via Cut-and-Choose Implementation to $10.91

BitVM3 is the next evolution of BitVM - the technology that will power BOB's native BTC bridge, enabling trust-minimized Bitcoin transfers without custodians or wrappers. Compared to BitVM2, BitVM3 uses garbled circuits to dramatically reduce on-chain costs, making disputes roughly 1,000x cheaper to resolve.

02
2025 Bitcoin Research Prize Awarded

Lukas Aumayr received the 2025 Bitcoin Research Prize for the paper “BitVM2: Bridging Bitcoin to Second Layers,” awarded during Chaincode Labs’ Bitcoin Research Day in New York.

blogs.ed.ac.uk/
🔗 Lukas Aumayr Receives the 2025 Bitcoin Research Prize

The award was presented on 7 November 2025 at Chaincode Labs’ offices in New York City during their Bitcoin Research Day (BRD).
BRD included several technical talks, and Chaincode invited the BitVM2 authors to attend the event in person. Lukas was present, along with some of his coauthors, and Robin Linus gave a talk on the paper.

03
David Seroy on the State of Garbled Circuits Research

David Seroy highlighted the rapid pace of innovation around garbled circuits for Bitcoin Layer 2s, noting active contributions from several teams working on Groth16 and related research. He also pointed to ongoing exploratory work from FairGate Labs, Liam Eagen, and StarkWare as part of the broader effort advancing next-generation Bitcoin verification.

04
Babylon and Ginco Team Up to Expand BTCFi in Japann

Babylon Labs and Ginco announced a strategic collaboration to accelerate BTCFi 2.0 adoption in Japan, combining Babylon’s Trustless BTC Vaults, powered by pre-signed transaction security and BitVM-style proofs, with Ginco’s enterprise self-custodial wallet infrastructure.

babylonlabs.io/blog
🔗 Babylon Labs X Ginco Partner to Advance BTCFi 2.0 Adoption in Japan

The shared objective of the partnership is to explore the technical and operational foundations of Trustless Bitcoin Finance, a model where Bitcoin can participate in staking, lending, and on-chain financial activities without:
• Entrusting assets to custodians
• Relying on intermediaries
• Introducing bridge or counterparty risk

Thanks for reading this week’s edition of Computing on Bitcoin News.
We’ll be back soon with more breakthroughs and real-world deployments.

Stay safe, and don't stop buidling!

—The Fairgate Team

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