{"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":"1513381","name":"Rough Creek Surface No 2"},"operator":{"type":"operator","id":"P10156","name":"Donaldson Creek Mining Company Inc"},"controller":{"type":"controller","id":"C07789","name":"Clark Orene"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C07789","name":"Clark Orene"},"object":{"type":"mine","id":"1513381","name":"Rough Creek Surface No 2"},"validFrom":"1979-11-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513381|C07789|1979-11-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C09100","name":"Crosby Wendell A"},"object":{"type":"mine","id":"1513381","name":"Rough Creek Surface No 2"},"validFrom":"1981-09-01","validTo":"1982-08-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513381|C09100|1981-09-01|1982-08-01"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P12288","name":"Associated Producers & Miners Inc"},"object":{"type":"mine","id":"1513381","name":"Rough Creek Surface No 2"},"validFrom":"1982-01-01","validTo":"1982-08-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513381|P12288|1982-01-01|1982-08-01"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C09100","name":"Crosby Wendell A"},"object":{"type":"operator","id":"P12288","name":"Associated Producers & Miners Inc"},"validFrom":"1982-01-01","validTo":"1982-08-01","current":false,"derived":true,"evidenceMineId":"1513381","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513381|P12288|1982-01-01|C09100|1981-09-01|78882"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P10156","name":"Donaldson Creek Mining Company Inc"},"object":{"type":"mine","id":"1513381","name":"Rough Creek Surface No 2"},"validFrom":"1982-08-02","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513381|P10156|1982-08-02|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C07789","name":"Clark Orene"},"object":{"type":"operator","id":"P10156","name":"Donaldson Creek Mining Company Inc"},"validFrom":"1982-08-02","validTo":null,"current":true,"derived":true,"evidenceMineId":"1513381","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513381|P10156|1982-08-02|C07789|1979-11-01|75699"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1513381","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"}}