{"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":"4406620","name":"No 4 Mine"},"operator":{"type":"operator","id":"P12158","name":"Old Dominion Energy Inc"},"controller":{"type":"controller","id":"C09013","name":"Jerry  Skeens; Eddie  Skeens"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00375","name":"United  Company"},"object":{"type":"mine","id":"4406620","name":"No 4 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":"4406620|C00375|1950-01-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C09013","name":"Jerry  Skeens  et al"},"object":{"type":"mine","id":"4406620","name":"No 4 Mine"},"validFrom":"1981-07-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406620|C09013|1981-07-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P00396","name":"Wellmore Coal Corp"},"object":{"type":"mine","id":"4406620","name":"No 4 Mine"},"validFrom":"1990-12-01","validTo":"1991-06-11","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406620|P00396|1990-12-01|1991-06-11"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00375","name":"United  Company"},"object":{"type":"operator","id":"P00396","name":"Wellmore Coal Corp"},"validFrom":"1990-12-01","validTo":"1991-06-11","current":false,"derived":true,"evidenceMineId":"4406620","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406620|P00396|1990-12-01|C00375|1950-01-01|46566"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P12158","name":"Old Dominion Energy Inc"},"object":{"type":"mine","id":"4406620","name":"No 4 Mine"},"validFrom":"1991-06-12","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406620|P12158|1991-06-12|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C09013","name":"Jerry  Skeens  et al"},"object":{"type":"operator","id":"P12158","name":"Old Dominion Energy Inc"},"validFrom":"1991-06-12","validTo":null,"current":true,"derived":true,"evidenceMineId":"4406620","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406620|P12158|1991-06-12|C09013|1981-07-01|78667"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C09013","name":"Eddie  Skeens  et al"},"object":{"type":"operator","id":"P12158","name":"Old Dominion Energy Inc"},"validFrom":"1991-06-12","validTo":null,"current":true,"derived":true,"evidenceMineId":"4406620","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406620|P12158|1991-06-12|C09013|1981-07-01|78668"}}],"coverage":{"historyRecords":3,"edgeCount":7,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4406620","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"}}