{"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":"3900025","name":"Russet #4 Quarry"},"operator":{"type":"operator","id":"L00067","name":"Cold Spring Granite Company"},"controller":{"type":"controller","id":"0184723","name":"Patrick  Alexander; Michael  O'Connor"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00108","name":"Patrick  Alexander"},"object":{"type":"mine","id":"3900025","name":"Russet #4 Quarry"},"validFrom":"1950-01-01","validTo":"2024-05-20","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3900025|M00108|1950-01-01|2024-05-20"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L11229","name":"Steiner-Rausch Granite Company Inc"},"object":{"type":"mine","id":"3900025","name":"Russet #4 Quarry"},"validFrom":"1950-01-01","validTo":"1989-10-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3900025|L11229|1950-01-01|1989-10-03"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M08693","name":"Steiner Garnett"},"object":{"type":"mine","id":"3900025","name":"Russet #4 Quarry"},"validFrom":"1950-01-01","validTo":"1989-10-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3900025|M08693|1950-01-01|1989-10-03"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M08693","name":"Steiner Garnett"},"object":{"type":"operator","id":"L11229","name":"Steiner-Rausch Granite Company Inc"},"validFrom":"1950-01-01","validTo":"1989-10-03","current":false,"derived":true,"evidenceMineId":"3900025","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3900025|L11229|1950-01-01|M08693|1950-01-01|143895"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00067","name":"Cold Spring Granite Company"},"object":{"type":"mine","id":"3900025","name":"Russet #4 Quarry"},"validFrom":"1989-10-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3900025|L00067|1989-10-04|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00108","name":"Patrick  Alexander"},"object":{"type":"operator","id":"L00067","name":"Cold Spring Granite Company"},"validFrom":"1989-10-04","validTo":"2024-05-20","current":false,"derived":true,"evidenceMineId":"3900025","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3900025|L00067|1989-10-04|M00108|1950-01-01|104349"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0184723","name":"Patrick  Alexander"},"object":{"type":"mine","id":"3900025","name":"Russet #4 Quarry"},"validFrom":"2024-05-21","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3900025|0184723|2024-05-21|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0184723","name":"Patrick  Alexander"},"object":{"type":"operator","id":"L00067","name":"Cold Spring Granite Company"},"validFrom":"2024-05-21","validTo":null,"current":true,"derived":true,"evidenceMineId":"3900025","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3900025|L00067|1989-10-04|0184723|2024-05-21|39431"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0184723","name":"Michael  O'Connor"},"object":{"type":"operator","id":"L00067","name":"Cold Spring Granite Company"},"validFrom":"2024-05-21","validTo":null,"current":true,"derived":true,"evidenceMineId":"3900025","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3900025|L00067|1989-10-04|0184723|2024-05-21|39432"}}],"coverage":{"historyRecords":4,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3900025","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"}}