{"data":{"schemaVersion":"realm.temporal-relationships.v1","temporalSemantics":{"validTime":{"granularity":"date","bounds":"inclusive","nullStart":"start date not published in the upstream history row","nullEnd":"open-ended in the upstream history row; not independent proof of present control"},"transactionTime":{"observedAt":"2026-10-17T05:35:58.500035+00:00","meaning":"time the checksum-addressed MDRS artifacts were observed by the PostgreSQL ingestion"},"derivation":{"controllerControlsOperator":"intersection of controller and operator valid-time intervals evidenced through this mine","currentIdentity":"current controller and operator are asserted only by the MDRS Mines snapshot"}},"current":{"mine":{"type":"mine","id":"3600271","name":"Amrize Whitehall Plant"},"operator":{"type":"operator","id":"0051046","name":"Amrize Cement Inc."},"controller":{"type":"controller","id":"0193740","name":"Amrize Ltd"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M02063","name":"Lafarge S A"},"object":{"type":"mine","id":"3600271","name":"Amrize Whitehall Plant"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3600271|M02063|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L07118","name":"Whitehall Cement Manufacturing Company"},"object":{"type":"mine","id":"3600271","name":"Amrize Whitehall Plant"},"validFrom":"1950-01-01","validTo":"1984-04-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3600271|L07118|1950-01-01|1984-04-03"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M05667","name":"Richard H  Foster"},"object":{"type":"mine","id":"3600271","name":"Amrize Whitehall Plant"},"validFrom":"1950-01-01","validTo":"1984-04-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3600271|M05667|1950-01-01|1984-04-03"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M05667","name":"Richard H  Foster"},"object":{"type":"operator","id":"L07118","name":"Whitehall Cement Manufacturing Company"},"validFrom":"1950-01-01","validTo":"1984-04-03","current":false,"derived":true,"evidenceMineId":"3600271","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3600271|L07118|1950-01-01|M05667|1950-01-01|135138"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L09304","name":"Lafarge Corp"},"object":{"type":"mine","id":"3600271","name":"Amrize Whitehall Plant"},"validFrom":"1984-04-04","validTo":"2002-10-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3600271|L09304|1984-04-04|2002-10-31"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M02063","name":"Lafarge S A"},"object":{"type":"operator","id":"L09304","name":"Lafarge Corp"},"validFrom":"1984-04-04","validTo":"2002-10-31","current":false,"derived":true,"evidenceMineId":"3600271","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3600271|L09304|1984-04-04|M02063|1950-01-01|123259"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M02063","name":"Lafarge S A"},"object":{"type":"mine","id":"3600271","name":"Amrize Whitehall Plant"},"validFrom":"2001-07-12","validTo":"2015-07-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3600271|M02063|2001-07-12|2015-07-09"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M01644","name":"Holcim Ltd"},"object":{"type":"mine","id":"3600271","name":"Amrize Whitehall Plant"},"validFrom":"2001-12-12","validTo":"2015-07-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3600271|M01644|2001-12-12|2015-07-09"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L18663","name":"Lafarge North America"},"object":{"type":"mine","id":"3600271","name":"Amrize Whitehall Plant"},"validFrom":"2002-11-01","validTo":"2018-01-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3600271|L18663|2002-11-01|2018-01-28"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M02063","name":"Lafarge S A"},"object":{"type":"operator","id":"L18663","name":"Lafarge North America"},"validFrom":"2002-11-01","validTo":"2015-07-09","current":false,"derived":true,"evidenceMineId":"3600271","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3600271|L18663|2002-11-01|M02063|2001-07-12|123485"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0119681","name":"Holcim Ltd"},"object":{"type":"mine","id":"3600271","name":"Amrize Whitehall Plant"},"validFrom":"2015-07-10","validTo":"2025-06-22","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3600271|0119681|2015-07-10|2025-06-22"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0119681","name":"Holcim Ltd"},"object":{"type":"mine","id":"3600271","name":"Amrize Whitehall Plant"},"validFrom":"2015-07-10","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3600271|0119681|2015-07-10|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0119681","name":"Holcim Ltd"},"object":{"type":"operator","id":"L18663","name":"Lafarge North America"},"validFrom":"2015-07-10","validTo":"2018-01-28","current":false,"derived":true,"evidenceMineId":"3600271","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3600271|L18663|2002-11-01|0119681|2015-07-10|23259"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0051046","name":"Amrize Cement Inc."},"object":{"type":"mine","id":"3600271","name":"Amrize Whitehall Plant"},"validFrom":"2018-01-29","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3600271|0051046|2018-01-29|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0119681","name":"Holcim Ltd"},"object":{"type":"operator","id":"0051046","name":"Amrize Cement Inc."},"validFrom":"2018-01-29","validTo":"2025-06-22","current":false,"derived":true,"evidenceMineId":"3600271","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3600271|0051046|2018-01-29|0119681|2015-07-10|23119"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M01644","name":"Holcim Ltd"},"object":{"type":"operator","id":"0051046","name":"Amrize Cement Inc."},"validFrom":"2018-01-29","validTo":"2015-07-09","current":false,"derived":true,"evidenceMineId":"3600271","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3600271|0051046|2018-01-29|M01644|2001-12-12|119829"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0193740","name":"Amrize Ltd"},"object":{"type":"mine","id":"3600271","name":"Amrize Whitehall Plant"},"validFrom":"2025-06-23","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3600271|0193740|2025-06-23|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0193740","name":"Amrize Ltd"},"object":{"type":"operator","id":"0051046","name":"Amrize Cement Inc."},"validFrom":"2025-06-23","validTo":null,"current":true,"derived":true,"evidenceMineId":"3600271","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3600271|0051046|2018-01-29|0193740|2025-06-23|41414"}}],"coverage":{"historyRecords":7,"edgeCount":18,"intervalAnomalies":1,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3600271","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}