{"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":"2026-10-13T11:19:05.459773+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":"3602374","name":"Warwick Mine"},"operator":{"type":"operator","id":"P23727","name":"Duquesne Light Company"},"controller":{"type":"controller","id":"C15588","name":"DQE"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P00590","name":"Duquesne Light Company"},"object":{"type":"mine","id":"3602374","name":"Warwick Mine"},"validFrom":"1950-01-01","validTo":"1990-10-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3602374|P00590|1950-01-01|1990-10-03"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00488","name":"Duquesne Light Company"},"object":{"type":"mine","id":"3602374","name":"Warwick Mine"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3602374|C00488|1950-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00488","name":"Duquesne Light Company"},"object":{"type":"operator","id":"P00590","name":"Duquesne Light Company"},"validFrom":"1950-01-01","validTo":"1990-10-03","current":false,"derived":true,"evidenceMineId":"3602374","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3602374|P00590|1950-01-01|C00488|1950-01-01|47524"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P21149","name":"New Warwick Mining Company"},"object":{"type":"mine","id":"3602374","name":"Warwick Mine"},"validFrom":"1990-10-04","validTo":"1997-03-18","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3602374|P21149|1990-10-04|1997-03-18"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00042","name":"Aloe Holding Inc"},"object":{"type":"mine","id":"3602374","name":"Warwick Mine"},"validFrom":"1990-10-04","validTo":"1997-03-18","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3602374|C00042|1990-10-04|1997-03-18"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00042","name":"Aloe Holding Inc"},"object":{"type":"operator","id":"P21149","name":"New Warwick Mining Company"},"validFrom":"1990-10-04","validTo":"1997-03-18","current":false,"derived":true,"evidenceMineId":"3602374","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3602374|P21149|1990-10-04|C00042|1990-10-04|43840"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P23727","name":"Duquesne Light Company"},"object":{"type":"mine","id":"3602374","name":"Warwick Mine"},"validFrom":"1997-03-19","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3602374|P23727|1997-03-19|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C15588","name":"DQE"},"object":{"type":"mine","id":"3602374","name":"Warwick Mine"},"validFrom":"1997-03-19","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3602374|C15588|1997-03-19|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15588","name":"DQE"},"object":{"type":"operator","id":"P23727","name":"Duquesne Light Company"},"validFrom":"1997-03-19","validTo":null,"current":true,"derived":true,"evidenceMineId":"3602374","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3602374|P23727|1997-03-19|C15588|1997-03-19|96295"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3602374","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}