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One row per pressure-induced space-group transition found in COD multi-pressure series after per-compound regrouping (DOI+formula+Z), settings-alias removal (same space-group number), and kPa-strict unit framing (CIF core dictionary standard, paper-validated). Windows are [P_last_low, P_first_high]; flags mark interleaved coexistence, single-point phases (weak), and wide unmeasured gaps. Companion to the COD pressure census series.