{"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":"2602669","name":"Portable Crusher # 1001"},"operator":{"type":"operator","id":"0117405","name":"Road and Highway Builders, LLC"},"controller":{"type":"controller","id":"0099433","name":"Sterling Infrastructure Inc; Richard H  Buenting"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M05190","name":"Garth  Frehner"},"object":{"type":"mine","id":"2602669","name":"Portable Crusher # 1001"},"validFrom":"1983-08-01","validTo":"2004-05-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2602669|M05190|1983-08-01|2004-05-09"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M07336","name":"Aggregate Industries PLC"},"object":{"type":"mine","id":"2602669","name":"Portable Crusher # 1001"},"validFrom":"2004-05-10","validTo":"2009-04-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2602669|M07336|2004-05-10|2009-04-29"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L06525","name":"Aggregate Industries SWR. INC."},"object":{"type":"mine","id":"2602669","name":"Portable Crusher # 1001"},"validFrom":"2009-03-10","validTo":"2012-03-15","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2602669|L06525|2009-03-10|2012-03-15"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M05190","name":"Garth  Frehner"},"object":{"type":"operator","id":"L06525","name":"Aggregate Industries SWR. INC."},"validFrom":"2009-03-10","validTo":"2004-05-09","current":false,"derived":true,"evidenceMineId":"2602669","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2602669|L06525|2009-03-10|M05190|1983-08-01|133943"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M07336","name":"Aggregate Industries PLC"},"object":{"type":"operator","id":"L06525","name":"Aggregate Industries SWR. INC."},"validFrom":"2009-03-10","validTo":"2009-04-29","current":false,"derived":true,"evidenceMineId":"2602669","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2602669|L06525|2009-03-10|M07336|2004-05-10|141064"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M01644","name":"Holcim Ltd"},"object":{"type":"mine","id":"2602669","name":"Portable Crusher # 1001"},"validFrom":"2009-04-30","validTo":"2015-07-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2602669|M01644|2009-04-30|2015-07-09"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M01644","name":"Holcim Ltd"},"object":{"type":"operator","id":"L06525","name":"Aggregate Industries SWR. INC."},"validFrom":"2009-04-30","validTo":"2012-03-15","current":false,"derived":true,"evidenceMineId":"2602669","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2602669|L06525|2009-03-10|M01644|2009-04-30|119964"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0099433","name":"Richard H  Buenting et al"},"object":{"type":"mine","id":"2602669","name":"Portable Crusher # 1001"},"validFrom":"2009-11-20","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2602669|0099433|2009-11-20|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0117405","name":"Road and Highway Builders, LLC"},"object":{"type":"mine","id":"2602669","name":"Portable Crusher # 1001"},"validFrom":"2012-03-16","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2602669|0117405|2012-03-16|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0099433","name":"Richard H  Buenting et al"},"object":{"type":"operator","id":"0117405","name":"Road and Highway Builders, LLC"},"validFrom":"2012-03-16","validTo":null,"current":true,"derived":true,"evidenceMineId":"2602669","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2602669|0117405|2012-03-16|0099433|2009-11-20|16448"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0099433","name":"Sterling Infrastructure Inc et al"},"object":{"type":"operator","id":"0117405","name":"Road and Highway Builders, LLC"},"validFrom":"2012-03-16","validTo":null,"current":true,"derived":true,"evidenceMineId":"2602669","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2602669|0117405|2012-03-16|0099433|2009-11-20|16449"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0119681","name":"Holcim Ltd"},"object":{"type":"mine","id":"2602669","name":"Portable Crusher # 1001"},"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":"2602669|0119681|2015-07-10|2025-06-22"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0119681","name":"Holcim Ltd"},"object":{"type":"operator","id":"L06525","name":"Aggregate Industries SWR. INC."},"validFrom":"2015-07-10","validTo":"2012-03-15","current":false,"derived":true,"evidenceMineId":"2602669","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2602669|L06525|2009-03-10|0119681|2015-07-10|23091"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0193740","name":"Amrize Ltd"},"object":{"type":"mine","id":"2602669","name":"Portable Crusher # 1001"},"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":"2602669|0193740|2025-06-23|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0193740","name":"Amrize Ltd"},"object":{"type":"operator","id":"L06525","name":"Aggregate Industries SWR. INC."},"validFrom":"2025-06-23","validTo":"2012-03-15","current":false,"derived":true,"evidenceMineId":"2602669","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2602669|L06525|2009-03-10|0193740|2025-06-23|41386"}}],"coverage":{"historyRecords":7,"edgeCount":15,"intervalAnomalies":3,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"2602669","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"}}