{"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":"4406396","name":"Dickenson Dock"},"operator":{"type":"operator","id":"P22336","name":"H & G Enterprises Inc"},"controller":{"type":"controller","id":"C14841","name":"Gott Jim"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P18890","name":"Classic Energy Inc"},"object":{"type":"mine","id":"4406396","name":"Dickenson Dock"},"validFrom":"1987-08-01","validTo":"1993-02-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406396|P18890|1987-08-01|1993-02-09"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C13088","name":"Darrell  Grigsby"},"object":{"type":"mine","id":"4406396","name":"Dickenson Dock"},"validFrom":"1987-08-01","validTo":"1993-09-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406396|C13088|1987-08-01|1993-09-13"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C13088","name":"Darrell  Grigsby"},"object":{"type":"operator","id":"P18890","name":"Classic Energy Inc"},"validFrom":"1987-08-01","validTo":"1993-02-09","current":false,"derived":true,"evidenceMineId":"4406396","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406396|P18890|1987-08-01|C13088|1987-08-01|88585"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22254","name":"Valley Coal Services Inc"},"object":{"type":"mine","id":"4406396","name":"Dickenson Dock"},"validFrom":"1993-02-10","validTo":"1995-08-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406396|P22254|1993-02-10|1995-08-03"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14799","name":"Southeastern Coal Services Inc"},"object":{"type":"mine","id":"4406396","name":"Dickenson Dock"},"validFrom":"1993-02-10","validTo":"1995-08-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406396|C14799|1993-02-10|1995-08-03"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14799","name":"Southeastern Coal Services Inc"},"object":{"type":"operator","id":"P22254","name":"Valley Coal Services Inc"},"validFrom":"1993-02-10","validTo":"1995-08-03","current":false,"derived":true,"evidenceMineId":"4406396","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406396|P22254|1993-02-10|C14799|1993-02-10|93912"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14841","name":"Gott Jim"},"object":{"type":"mine","id":"4406396","name":"Dickenson Dock"},"validFrom":"1993-04-27","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406396|C14841|1993-04-27|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22336","name":"H & G Enterprises Inc"},"object":{"type":"mine","id":"4406396","name":"Dickenson Dock"},"validFrom":"1995-08-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406396|P22336|1995-08-04|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14841","name":"Gott Jim"},"object":{"type":"operator","id":"P22336","name":"H & G Enterprises Inc"},"validFrom":"1995-08-04","validTo":null,"current":true,"derived":true,"evidenceMineId":"4406396","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406396|P22336|1995-08-04|C14841|1993-04-27|94040"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4406396","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"}}