{"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":"2400781","name":"Billings Pit"},"operator":{"type":"operator","id":"L09638","name":"Midland O'Leary Inc"},"controller":{"type":"controller","id":"M07557","name":"Dean  Studer"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L09639","name":"Barry O'Leary Inc"},"object":{"type":"mine","id":"2400781","name":"Billings Pit"},"validFrom":"1950-01-01","validTo":"1987-07-05","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2400781|L09639|1950-01-01|1987-07-05"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M07558","name":"O'Leary Agnes"},"object":{"type":"mine","id":"2400781","name":"Billings Pit"},"validFrom":"1950-01-01","validTo":"1987-07-05","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2400781|M07558|1950-01-01|1987-07-05"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M07558","name":"O'Leary Agnes"},"object":{"type":"operator","id":"L09639","name":"Barry O'Leary Inc"},"validFrom":"1950-01-01","validTo":"1987-07-05","current":false,"derived":true,"evidenceMineId":"2400781","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2400781|L09639|1950-01-01|M07558|1950-01-01|141505"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M07557","name":"Dean  Studer"},"object":{"type":"mine","id":"2400781","name":"Billings Pit"},"validFrom":"1987-07-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2400781|M07557|1987-07-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L09638","name":"Midland O'Leary Inc"},"object":{"type":"mine","id":"2400781","name":"Billings Pit"},"validFrom":"1987-07-06","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2400781|L09638|1987-07-06|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M07557","name":"Dean  Studer"},"object":{"type":"operator","id":"L09638","name":"Midland O'Leary Inc"},"validFrom":"1987-07-06","validTo":null,"current":true,"derived":true,"evidenceMineId":"2400781","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2400781|L09638|1987-07-06|M07557|1987-07-01|141503"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"2400781","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"}}