Computing on Bitcoin #83
April 02, 2026 - Week 13
The landscape keeps expanding beyond its traditional boundaries while preserving Bitcoin’s core principles.
Every week, we highlight a selection of recent articles that reflect the growing sophistication of the space and the increasing convergence between Bitcoin and broader cryptographic and multi-chain paradigms.
Let's dive in.
Lombard Finance researchers introduced Bitcoin Smart Accounts, a protocol for enabling native Bitcoin DeFi with self-custody using PSBTs, Taproot, and TEE-based arbitration. The paper references BitVM-style covenant emulation and positions the design as a lower-complexity alternative to trust-minimized bridges.
sarxiv.org
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Bitcoin Smart Accounts: Trust-Minimized Native Bitcoin DeFi Infrastructure
Bitcoin’s limited programmability and transaction throughput have historically prevented native Bitcoin from participating in decentralized finance (DeFi) applications. This paper introduces Bitcoin Smart Accounts (BSA), a novel protocol that enables native Bitcoin to access DeFi through trust-minimized infrastructure while maintaining self-custody of funds.
Fairgate released a video introducing BitVMX bridges, outlining a non-custodial model for cross-chain Bitcoin transfers
Fairgate - BITVMX Bridges
youtube.com/@BitVMX-Bitcoin-Computation
No fronting. No custodians. Just real ownership transfers.
BOB introduced a method for trustless Bitcoin inscriptions, enabling EVM-based applications to inscribe data on Bitcoin without holding BTC or managing keys.
ecosystem.gobob.xyz
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Trustless Bitcoin Inscriptions from BOB, Ethereum, and Beyond
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Bitcoin inscriptions have turned the blockchain into a canvas for digital art, NFT collections, and permanent on-chain data. But creating an inscription requires BTC, a Bitcoin wallet, and manual coordination of commit and reveal transactions. For a project on BOB or any EVM chain, this is a hard problem.
StarkWare introduced circuit-based recursive proving, reducing proof generation time from minutes to seconds while lowering costs and hardware requirements.
starkware.co/blog
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Minutes to Seconds: Efficiency Gains with Recursive Circuit Proving
BTQ’s Bitcoin Quantum Testnet v0.3.0 now supports BIP 360’s Pay-to-Merkle-Root (P2MR) outputs, which remove Taproot’s key path spending and force all UTXOs through hash-based script paths to reduce long-exposure quantum risk.
Thanks for reading!
We’ll continue tracking the most relevant developments closely, bringing you the key signals from across the ecosystem.
Stay tuned for more insights in the next edition.
-The Fairgate Team