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"arrival_skew", "source_witness" ], "max_sequence": 285415626529112734, "min_sequence": 8162774831741390, "order_by": [ "market", "id", "timestamp", "sequence" ], "row_count": 393, "row_groups": [ 42, 42 ], "sha256": "a0b3749ba733a8c93e48a1280351991fa3998878e3091c330d24342c0a0e42f1" }, "price_change": { "byte_range": [ 161161072, 1143115930 ], "columns": [ "timestamp_received", "sequence", "timestamp", "market", "asset_id", "price", "size", "side", "best_bid", "best_ask", "witness_set", "arrival_skew", "source_witness" ], "max_sequence": 285415626530297803, "min_sequence": 8162774828679576, "order_by": [ "market", "asset_id", "timestamp", "sequence" ], "row_count": 99934064, "row_groups": [ 43, 424 ], "sha256": "ac0fc6e6ccde1923da15d92bc097a3abcba78e749dd9cf4526b76352031929e0" }, "tick_size_change": { "byte_range": [ 1143115930, 1143317412 ], "columns": [ "timestamp_received", "sequence", "timestamp", "market", "asset_id", "old_tick_size", "new_tick_size", "witness_set", "arrival_skew", "source_witness" ], "max_sequence": 285415626528080714, "min_sequence": 8162774930926262, "order_by": [ "market", "asset_id", "timestamp", "sequence" ], "row_count": 5676, "row_groups": [ 425, 425 ], "sha256": "7cd24193a5a25036bf671eb415848a974a71efef2094ccca2136c936f36df656" } }, "row_count": 110395398, "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). The winner is per row, not per hour -- each row names its own in source_witness", "sha256": "f4aa75da2985872f4f5c7033f97bf4a2e9e6eca6dacaa31f17c06e8f6ce601f7", "skipped_witnesses": { "g": { "alive": false, "listed_utc": "2026-09-21T02:42:56.468701Z", "newest_upload": "2026-09-20T20:20:39.551000Z", "reason": "not_staged" } }, "verification": { "note": "A range digest certifies BYTES. That those bytes are that product comes from this manifest and is cross-checkable against the Parquet footer, which is inside the whole-file sha256.", "primary": "sha256sum == .sha256", "secondary": "curl -r - | sha256sum == .products..sha256" }, "witness_stats": "2026-09-20T23.witness_stats.json", "witnesses": "chef", "served_verbatim": true, "served_note": "This hour is the merger's union file, published byte for byte. Hours before the era cutover are rebuilt here from the seven product files and carry one column fewer." }