{\"error\":\"Q_MISMATCH\",\"message\":\"Provided tweak does not produce expected Q from PSBT\",\"request_id\":\"e7df8839\",\"details\":{\"Q_expected\":\"019713c01b5603df8b3e5264555f3e98d492cebcd67ed3e57e9228b3f4c5156d\",\"Q_computed\":\"2ed9af8d0bfb7136f505e55024e9f0250bfdd29f2841ad62eeb6ef01e711962f\",\"P_xonly\":\"275e8cbe724d797701ab53147aec88d715e799fa0d0f3ec6f643dc83d32792ec\",\"tweak32\":\"054e7423c9ff76158ff87ad3d559a3b1f9d205cc1e498f660fa0bbbe38d39f44\",\"fix\":\"Ensure iOS uses 32-byte x-only keys in tapscript leaf, not 33-byte compressed\"}}