feat: add wasm-utxo backend for cross-chain recovery #7840
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Add wasm-utxo implementation for PSBT creation in cross-chain recovery flows, alongside the existing utxolib implementation. The wasm-utxo backend is enabled for testnet coins only, while mainnet continues to use utxolib for compatibility. Key changes: - Add support for taproot script types in cross-chain recovery - Use sequence number feffffff instead of ffffffff - Add helper functions to detect taproot chains and convert networks Co-authored-by: llm-git <llm-git@ttll.de> Ticket: BTC-2892 TICKET: BTC-2892
davidkaplanbitgo
approved these changes
Jan 6, 2026
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Add wasm-utxo implementation for PSBT creation in cross-chain recovery flows, alongside the existing utxolib implementation. The wasm-utxo backend is enabled for testnet coins only, while mainnet continues to use utxolib for compatibility.
Key changes:
Co-authored-by: llm-git llm-git@ttll.de
Ticket: BTC-2892
TICKET: BTC-2892