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"best_bid", "best_ask", "witness_set", "arrival_skew", "source_witness" ], "max_sequence": 297237575427073419, "min_sequence": 8162777135875884, "order_by": [ "market", "asset_id", "timestamp", "sequence" ], "row_count": 96181256, "row_groups": [ 52, 418 ], "sha256": "62eba1e33d403e0c10eb963d0443dbe965cce98ce5a1b8fd7e7d3425b13a4f7c" }, "tick_size_change": { "byte_range": [ 1212696922, 1212784492 ], "columns": [ "timestamp_received", "sequence", "timestamp", "market", "asset_id", "old_tick_size", "new_tick_size", "witness_set", "arrival_skew", "source_witness" ], "max_sequence": 297237575426626328, "min_sequence": 8162777146760549, "order_by": [ "market", "asset_id", "timestamp", "sequence" ], "row_count": 2332, "row_groups": [ 419, 419 ], "sha256": "024f0611fc68b024a26c210885463b2abefbc4679661a18f9093251ce00fff6f" } }, "row_count": 108999182, "sequence_note": "sequence and timestamp_received are collector-local provenance; where domains carry the same row, the merge keeps the EARLIEST-RECEIVED copy, equal arrivals breaking by registry order (active: c, h, e, f). 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