{"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":"2026-10-17T05:35:58.500035+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":"2501020","name":"Rush Creek Gravel"},"operator":{"type":"operator","id":"L08359","name":"Rush Creek Inc"},"controller":{"type":"controller","id":"M06648","name":"Arnold Tom"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06466","name":"Rosane Douglas & Dennis"},"object":{"type":"mine","id":"2501020","name":"Rush Creek Gravel"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2501020|M06466|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L08131","name":"R A & S Contracting Company"},"object":{"type":"mine","id":"2501020","name":"Rush Creek Gravel"},"validFrom":"1984-06-01","validTo":"1985-09-02","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2501020|L08131|1984-06-01|1985-09-02"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06466","name":"Rosane Douglas & Dennis"},"object":{"type":"operator","id":"L08131","name":"R A & S Contracting Company"},"validFrom":"1984-06-01","validTo":"1985-09-02","current":false,"derived":true,"evidenceMineId":"2501020","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2501020|L08131|1984-06-01|M06466|1950-01-01|138641"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L08359","name":"Rush Creek Inc"},"object":{"type":"mine","id":"2501020","name":"Rush Creek Gravel"},"validFrom":"1985-09-03","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2501020|L08359|1985-09-03|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06648","name":"Arnold Tom"},"object":{"type":"mine","id":"2501020","name":"Rush Creek Gravel"},"validFrom":"1985-09-03","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2501020|M06648|1985-09-03|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06648","name":"Arnold Tom"},"object":{"type":"operator","id":"L08359","name":"Rush Creek Inc"},"validFrom":"1985-09-03","validTo":null,"current":true,"derived":true,"evidenceMineId":"2501020","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2501020|L08359|1985-09-03|M06648|1985-09-03|139002"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"2501020","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}