{"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":"0201225","name":"Air Port Pit"},"operator":{"type":"operator","id":"L01504","name":"Maddux & Son'S Inc"},"controller":{"type":"controller","id":"0118781","name":"Clinton R  Maddux; James C  Maddux"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L01504","name":"Maddux & Son'S Inc"},"object":{"type":"mine","id":"0201225","name":"Air Port Pit"},"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":"0201225|L01504|1950-01-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M01346","name":"Lenard R  Maddux"},"object":{"type":"mine","id":"0201225","name":"Air Port Pit"},"validFrom":"1950-01-01","validTo":"2015-03-26","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0201225|M01346|1950-01-01|2015-03-26"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M01346","name":"Lenard R  Maddux"},"object":{"type":"operator","id":"L01504","name":"Maddux & Son'S Inc"},"validFrom":"1950-01-01","validTo":"2015-03-26","current":false,"derived":true,"evidenceMineId":"0201225","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0201225|L01504|1950-01-01|M01346|1950-01-01|118146"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0118781","name":"James C  Maddux et al"},"object":{"type":"mine","id":"0201225","name":"Air Port Pit"},"validFrom":"2015-03-27","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0201225|0118781|2015-03-27|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0118781","name":"James C  Maddux et al"},"object":{"type":"operator","id":"L01504","name":"Maddux & Son'S Inc"},"validFrom":"2015-03-27","validTo":null,"current":true,"derived":true,"evidenceMineId":"0201225","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0201225|L01504|1950-01-01|0118781|2015-03-27|22738"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0118781","name":"Clinton R  Maddux et al"},"object":{"type":"operator","id":"L01504","name":"Maddux & Son'S Inc"},"validFrom":"2015-03-27","validTo":null,"current":true,"derived":true,"evidenceMineId":"0201225","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0201225|L01504|1950-01-01|0118781|2015-03-27|22739"}}],"coverage":{"historyRecords":3,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0201225","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"}}