feat(wasm-utxo): add PSBT global xpub extraction and sorting#192
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OttoAllmendinger merged 1 commit intomasterfrom Mar 5, 2026
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feat(wasm-utxo): add PSBT global xpub extraction and sorting#192OttoAllmendinger merged 1 commit intomasterfrom
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Add `getGlobalXpubs()` method to extract global xpubs from PSBTs, and implement `getWalletKeysFromPsbt()` utility to sort unordered xpubs into canonical [user, backup, bitgo] order by validating against PSBT wallet inputs. This supports legacy cold wallets where PSBTs were built with derived keys but only root xpubs are available. The sorting algorithm tries all 6 permutations and validates each against wallet inputs to find the correct ordering. Works for all script types including p2tr. Issue: BTC-XXXX Co-authored-by: llm-git <llm-git@ttll.de>
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davidkaplanbitgo
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Add
getGlobalXpubs()method to extract global xpubs from PSBTs,and implement
getWalletKeysFromPsbt()utility to sort unorderedxpubs into canonical [user, backup, bitgo] order by validating
against PSBT wallet inputs.
This supports legacy cold wallets where PSBTs were built with
derived keys but only root xpubs are available. The sorting
algorithm tries all 6 permutations and validates each against
wallet inputs to find the correct ordering. Works for all script
types including p2tr.
Issue: BTC-XXXX
Co-authored-by: llm-git llm-git@ttll.de