{"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":"0103021","name":"Mine No 3"},"operator":{"type":"operator","id":"P22685","name":"Mountainbrook Coal Company Inc"},"controller":{"type":"controller","id":"C15016","name":"Joan D  Dobbins"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C12278","name":"Osborn Nicky Et Al"},"object":{"type":"mine","id":"0103021","name":"Mine No 3"},"validFrom":"1986-02-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0103021|C12278|1986-02-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C15016","name":"Joan D  Dobbins"},"object":{"type":"mine","id":"0103021","name":"Mine No 3"},"validFrom":"1993-09-24","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0103021|C15016|1993-09-24|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22685","name":"Mountainbrook Coal Company Inc"},"object":{"type":"mine","id":"0103021","name":"Mine No 3"},"validFrom":"1994-06-01","validTo":"1995-08-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0103021|P22685|1994-06-01|1995-08-01"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15016","name":"Joan D  Dobbins"},"object":{"type":"operator","id":"P22685","name":"Mountainbrook Coal Company Inc"},"validFrom":"1994-06-01","validTo":"1995-08-01","current":false,"derived":true,"evidenceMineId":"0103021","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0103021|P22685|1994-06-01|C15016|1993-09-24|94576"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P17473","name":"Osborn Coal Enterprises Inc"},"object":{"type":"mine","id":"0103021","name":"Mine No 3"},"validFrom":"1995-08-02","validTo":"1996-04-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0103021|P17473|1995-08-02|1996-04-03"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C12278","name":"Osborn Nicky Et Al"},"object":{"type":"operator","id":"P17473","name":"Osborn Coal Enterprises Inc"},"validFrom":"1995-08-02","validTo":"1996-04-03","current":false,"derived":true,"evidenceMineId":"0103021","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0103021|P17473|1995-08-02|C12278|1986-02-01|86529"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22685","name":"Mountainbrook Coal Company Inc"},"object":{"type":"mine","id":"0103021","name":"Mine No 3"},"validFrom":"1996-04-04","validTo":"1997-05-26","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0103021|P22685|1996-04-04|1997-05-26"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15016","name":"Joan D  Dobbins"},"object":{"type":"operator","id":"P22685","name":"Mountainbrook Coal Company Inc"},"validFrom":"1996-04-04","validTo":"1997-05-26","current":false,"derived":true,"evidenceMineId":"0103021","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0103021|P22685|1996-04-04|C15016|1993-09-24|94577"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C03913","name":"John C  Fay Jr"},"object":{"type":"mine","id":"0103021","name":"Mine No 3"},"validFrom":"1996-11-18","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0103021|C03913|1996-11-18|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P23594","name":"Highland Mining Company Inc"},"object":{"type":"mine","id":"0103021","name":"Mine No 3"},"validFrom":"1997-05-27","validTo":"1998-04-15","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0103021|P23594|1997-05-27|1998-04-15"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C03913","name":"John C  Fay Jr"},"object":{"type":"operator","id":"P23594","name":"Highland Mining Company Inc"},"validFrom":"1997-05-27","validTo":"1998-04-15","current":false,"derived":true,"evidenceMineId":"0103021","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0103021|P23594|1997-05-27|C03913|1996-11-18|64213"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22685","name":"Mountainbrook Coal Company Inc"},"object":{"type":"mine","id":"0103021","name":"Mine No 3"},"validFrom":"1998-04-16","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0103021|P22685|1998-04-16|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15016","name":"Joan D  Dobbins"},"object":{"type":"operator","id":"P22685","name":"Mountainbrook Coal Company Inc"},"validFrom":"1998-04-16","validTo":null,"current":true,"derived":true,"evidenceMineId":"0103021","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0103021|P22685|1998-04-16|C15016|1993-09-24|94578"}}],"coverage":{"historyRecords":5,"edgeCount":13,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0103021","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"}}