Alpen Labs introduces Duty-Free Bits for Bitcoin-compatible garbling
Alpen Labs introduces Duty-Free Bits, a technique that makes arithmetic garbling schemes Bitcoin-compatible with up to 98.8% smaller encodings. The work improves garbled-circuit constructions used in BitVM-style protocols like BABE and Argo.
alpenlabs.io/blog
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Shrinking Glock: Duty-Free Bits
A line of recent work has explored how to enable more expressive protocols on Bitcoin without requiring changes to the base layer. One promising direction uses garbled circuits to move expensive verification logic off-chain while preserving the ability to produce fraud proofs if something goes wrong.