Computing on Bitcoin #113
October 30, 2026 - Week 44
Welcome to another edition of Computing on Bitcoin News! Here's what's on our reading list this week.
A new paper introduces Tritone, a multi-party BitVM-core protocol for verifying Groth16 proofs on Bitcoin using pairwise garbled disputes.
eprint.iacr.org
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Tritone: Pairwise Garbled Disputes for Multi-Party Proof Verification on Bitcoin
Bitcoin Script lacks native pairing operations for efficient direct verification of Groth16 proofs. Conventional federated bridges instead authorize withdrawals through a signing quorum, whose collusion can release funds without valid evidence.
A new report covers Lichen, an experimental Bitcoin withdrawal design combining RISC Zero proofs and BitVMX verification to enable users to enforce eligible exits without hub cooperation, operating within existing Bitcoin consensus rules.
btcnews.com
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Lichen Prototype Tests Bitcoin Exits Without A Consensus Change
Bitcoin developer Adam Gibson has published Lichen, an experimental design for withdrawing bitcoin from an external payment ledger without relying on a hub to cooperate. His October 11 technical proposal describes an approach that works within existing Bitcoin consensus rules.
github.com/AdamISZ
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Lichen over BitVMX, the dispute as build and measured
A new interview with Cardano founder Charles Hoskinson explores Bitcoin DeFi, claiming a 1,000x reduction in BitVM transaction costs, and plans to bring privacy-preserving Bitcoin DeFi into the Midnight ecosystem
Bitcoin to $250K? Charles Hoskinson on Quantum Risk, Cardano, Midnight & AI
youtube.com/@AICryptoMinds
Charles Hoskinson, Ethereum co-creator and Cardano founder, joins us at TOKEN2049 for an exclusive deep dive into why crypto still has not reached true mass adoption—and what the fourth generation of blockchain must do to fix it.
A new paper introduces BitVM3, a trust-minimized Bitcoin bridge architecture using garbled circuits to reduce on-chain dispute costs , enabling smaller bonds, broader operator participation, and smaller deposits.
eprint.iacr.org
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BitVM3: Efficient Bitcoin Bridges via Garbled Circuits
Bitcoin bridges, protocols that lock BTC on Bitcoin and represent it on a secondary system, underpin much of Bitcoin's application layer, yet remain poorly secured. Deployed bridges rely on federated custody with honest-majority assumptions, while BitVM2, the state of the art in trust-minimized bridging, incurs worst-case dispute costs of approximately $16,000, requiring large operator bonds and deposits that restrict participation to well-capitalized parties.
That's it for this edition of Computing on Bitcoin News. Thanks for reading, and stay tuned for more research, discussions, and developments in the weeks ahead.
Until next time,
The Fairgate Team