Lightning Labs CTO Olaoluwa Osuntokun has shown a working prototype for a Bitcoin wallet rescue mechanism tied to future post-quantum migration.
The tool is designed for wallets that could otherwise be stranded if Bitcoin ever disables vulnerable key-spend paths as part of a quantum-defense upgrade.
Bitcoin may have its first concrete prototype for a problem developers have mostly discussed in theory so far. Olaoluwa Osuntokun, CTO of Lightning Labs, said this week he had built an end-to-end prototype that could give certain Bitcoin wallets a way out if the network ever adopts a soft fork to defend against quantum attacks by disabling exposed key-spend paths.
The proposal centers on Taproot and, more specifically, BIP-86 style wallets that do not commit to a script path and could therefore be left without a clean migration route under that kind of upgrade.
A fallback for wallets that miss the migration window
The prototype uses a zk-STARK proof to show that a Taproot output key wa
