{"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":"4602165","name":"F Mine"},"operator":{"type":"operator","id":"P11681","name":"Liberty Bell Fuel Inc"},"controller":{"type":"controller","id":"C03446","name":"William  Calloway"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P02738","name":"Ranger Fuel Corp"},"object":{"type":"mine","id":"4602165","name":"F Mine"},"validFrom":"1950-01-01","validTo":"1979-01-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4602165|P02738|1950-01-01|1979-01-28"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00230","name":"Pittston Company"},"object":{"type":"mine","id":"4602165","name":"F 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":"4602165|C00230|1950-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00230","name":"Pittston Company"},"object":{"type":"operator","id":"P02738","name":"Ranger Fuel Corp"},"validFrom":"1950-01-01","validTo":"1979-01-28","current":false,"derived":true,"evidenceMineId":"4602165","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4602165|P02738|1950-01-01|C00230|1950-01-01|45169"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02963","name":"Pack Bill"},"object":{"type":"mine","id":"4602165","name":"F Mine"},"validFrom":"1979-01-01","validTo":"1983-07-06","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4602165|C02963|1979-01-01|1983-07-06"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P09247","name":"War Eagle Coals Inc"},"object":{"type":"mine","id":"4602165","name":"F Mine"},"validFrom":"1979-01-29","validTo":"1981-02-17","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4602165|P09247|1979-01-29|1981-02-17"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02963","name":"Pack Bill"},"object":{"type":"operator","id":"P09247","name":"War Eagle Coals Inc"},"validFrom":"1979-01-29","validTo":"1981-02-17","current":false,"derived":true,"evidenceMineId":"4602165","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4602165|P09247|1979-01-29|C02963|1979-01-01|61466"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P11681","name":"Liberty Bell Fuel Inc"},"object":{"type":"mine","id":"4602165","name":"F Mine"},"validFrom":"1981-02-18","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4602165|P11681|1981-02-18|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C03446","name":"William  Calloway"},"object":{"type":"mine","id":"4602165","name":"F Mine"},"validFrom":"1981-02-18","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4602165|C03446|1981-02-18|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C03446","name":"William  Calloway"},"object":{"type":"operator","id":"P11681","name":"Liberty Bell Fuel Inc"},"validFrom":"1981-02-18","validTo":null,"current":true,"derived":true,"evidenceMineId":"4602165","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4602165|P11681|1981-02-18|C03446|1981-02-18|62945"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4602165","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"}}