feat(wasm-utxo): add half-signed legacy transaction format extraction #125
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OttoAllmendinger
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Adds support for extracting half-signed transactions in the legacy format used by bitcoinjs-lib and utxo-lib. This format places signatures in the correct position for p2ms-based inputs (p2sh, p2shP2wsh, p2wsh) with empty placeholders for missing signatures. The implementation handles all supported networks and script types and produces output compatible with utxo-lib's extractP2msOnlyHalfSignedTx. Issue: BTC-2993 Co-authored-by: llm-git <llm-git@ttll.de>
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davidkaplanbitgo
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Jan 30, 2026
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Add support for extracting half-signed transactions in legacy format
compatible with utxo-lib and bitcoinjs-lib. This format places
signatures in the correct position based on the key index with empty
placeholders for unsigned positions.
The implementation handles all supported p2ms-based script types
(p2sh, p2shP2wsh, and p2wsh) and works across all UTXO networks,
including Bitcoin, Litecoin, Dash, and Zcash.
BTC-2993