{"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":"3602275","name":"Atlas Fine Coal Plant"},"operator":{"type":"operator","id":"P07572","name":"Great Eastern Coal Corp"},"controller":{"type":"controller","id":"C06003","name":"Dimeling William R"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P03042","name":"Sun Coal Company"},"object":{"type":"mine","id":"3602275","name":"Atlas Fine Coal Plant"},"validFrom":"1950-01-01","validTo":"1977-11-16","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3602275|P03042|1950-01-01|1977-11-16"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02604","name":"Farley William J"},"object":{"type":"mine","id":"3602275","name":"Atlas Fine Coal Plant"},"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":"3602275|C02604|1950-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02604","name":"Farley William J"},"object":{"type":"operator","id":"P03042","name":"Sun Coal Company"},"validFrom":"1950-01-01","validTo":"1977-11-16","current":false,"derived":true,"evidenceMineId":"3602275","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3602275|P03042|1950-01-01|C02604|1950-01-01|60195"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P07572","name":"Great Eastern Coal Corp"},"object":{"type":"mine","id":"3602275","name":"Atlas Fine Coal Plant"},"validFrom":"1977-11-17","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3602275|P07572|1977-11-17|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C06003","name":"Dimeling William R"},"object":{"type":"mine","id":"3602275","name":"Atlas Fine Coal Plant"},"validFrom":"1977-11-17","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3602275|C06003|1977-11-17|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C06003","name":"Dimeling William R"},"object":{"type":"operator","id":"P07572","name":"Great Eastern Coal Corp"},"validFrom":"1977-11-17","validTo":null,"current":true,"derived":true,"evidenceMineId":"3602275","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3602275|P07572|1977-11-17|C06003|1977-11-17|70557"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3602275","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"}}