mediumLogic errorOther
ZetaChain Cross-Chain: Bitcoin Observers' signed transactions will be rejected due to invalid sighashes
- Payout
- $0
- Protocol
- ZetaChain Cross-Chain
- Disclosed
- May 12, 2025
- Source
- sherlock
ZetaChain's Bitcoin observer signer builds transaction sighashes from an empty previous-output script and a zero amount instead of the actual UTXO being spent. Because the sighash committed at TSS-signing time does not match what the Bitcoin network independen …
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References
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