{"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":"4606835","name":"Jada Coal & Construction Co Inc"},"operator":{"type":"operator","id":"P20219","name":"Jada Coal & Construction Company Inc"},"controller":{"type":"controller","id":"C13786","name":"Brown James R"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P15933","name":"Jada Coal & Construction Company Inc"},"object":{"type":"mine","id":"4606835","name":"Jada Coal & Construction Co Inc"},"validFrom":"1984-08-01","validTo":"1988-03-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4606835|P15933|1984-08-01|1988-03-01"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C11382","name":"Rogers James A & Cranston David Johnson"},"object":{"type":"mine","id":"4606835","name":"Jada Coal & Construction Co Inc"},"validFrom":"1984-08-01","validTo":"1988-03-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4606835|C11382|1984-08-01|1988-03-01"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C11382","name":"Rogers James A & Cranston David Johnson"},"object":{"type":"operator","id":"P15933","name":"Jada Coal & Construction Company Inc"},"validFrom":"1984-08-01","validTo":"1988-03-01","current":false,"derived":true,"evidenceMineId":"4606835","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4606835|P15933|1984-08-01|C11382|1984-08-01|84468"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P19451","name":"Jada Coal & Construction Company Inc"},"object":{"type":"mine","id":"4606835","name":"Jada Coal & Construction Co Inc"},"validFrom":"1988-03-02","validTo":"1989-03-27","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4606835|P19451|1988-03-02|1989-03-27"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C13361","name":"Johnson Cranston D"},"object":{"type":"mine","id":"4606835","name":"Jada Coal & Construction Co Inc"},"validFrom":"1988-03-02","validTo":"1989-03-27","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4606835|C13361|1988-03-02|1989-03-27"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C13361","name":"Johnson Cranston D"},"object":{"type":"operator","id":"P19451","name":"Jada Coal & Construction Company Inc"},"validFrom":"1988-03-02","validTo":"1989-03-27","current":false,"derived":true,"evidenceMineId":"4606835","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4606835|P19451|1988-03-02|C13361|1988-03-02|89433"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P20219","name":"Jada Coal & Construction Company Inc"},"object":{"type":"mine","id":"4606835","name":"Jada Coal & Construction Co Inc"},"validFrom":"1989-03-28","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4606835|P20219|1989-03-28|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C13786","name":"Brown James R"},"object":{"type":"mine","id":"4606835","name":"Jada Coal & Construction Co Inc"},"validFrom":"1989-03-28","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4606835|C13786|1989-03-28|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C13786","name":"Brown James R"},"object":{"type":"operator","id":"P20219","name":"Jada Coal & Construction Company Inc"},"validFrom":"1989-03-28","validTo":null,"current":true,"derived":true,"evidenceMineId":"4606835","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4606835|P20219|1989-03-28|C13786|1989-03-28|91107"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4606835","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"}}