{"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":"4405212","name":"Mine No 4a"},"operator":{"type":"operator","id":"P00022","name":"Meadows Coal Company"},"controller":{"type":"controller","id":"C00007","name":"Paris  Meadows"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00007","name":"Paris  Meadows et al"},"object":{"type":"mine","id":"4405212","name":"Mine No 4a"},"validFrom":"1975-02-20","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405212|C00007|1975-02-20|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P09401","name":"Laramie Corp"},"object":{"type":"mine","id":"4405212","name":"Mine No 4a"},"validFrom":"1979-04-01","validTo":"1980-03-25","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405212|P09401|1979-04-01|1980-03-25"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C08497","name":"Bandy Don"},"object":{"type":"mine","id":"4405212","name":"Mine No 4a"},"validFrom":"1979-04-01","validTo":"1983-09-11","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405212|C08497|1979-04-01|1983-09-11"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C08497","name":"Bandy Don"},"object":{"type":"operator","id":"P09401","name":"Laramie Corp"},"validFrom":"1979-04-01","validTo":"1980-03-25","current":false,"derived":true,"evidenceMineId":"4405212","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405212|P09401|1979-04-01|C08497|1979-04-01|77438"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C07728","name":"Mullins Jack"},"object":{"type":"mine","id":"4405212","name":"Mine No 4a"},"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":"4405212|C07728|1979-11-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P10042","name":"Long Fork Coal Company Inc"},"object":{"type":"mine","id":"4405212","name":"Mine No 4a"},"validFrom":"1980-03-26","validTo":"1980-07-08","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405212|P10042|1980-03-26|1980-07-08"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C07728","name":"Mullins Jack"},"object":{"type":"operator","id":"P10042","name":"Long Fork Coal Company Inc"},"validFrom":"1980-03-26","validTo":"1980-07-08","current":false,"derived":true,"evidenceMineId":"4405212","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405212|P10042|1980-03-26|C07728|1979-11-01|75543"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P10915","name":"Blue Flame Coal Sales Corp"},"object":{"type":"mine","id":"4405212","name":"Mine No 4a"},"validFrom":"1980-07-09","validTo":"1981-02-10","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405212|P10915|1980-07-09|1981-02-10"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C07954","name":"Rife Lincoln"},"object":{"type":"mine","id":"4405212","name":"Mine No 4a"},"validFrom":"1980-07-09","validTo":"1981-02-10","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405212|C07954|1980-07-09|1981-02-10"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C07954","name":"Rife Lincoln"},"object":{"type":"operator","id":"P10915","name":"Blue Flame Coal Sales Corp"},"validFrom":"1980-07-09","validTo":"1981-02-10","current":false,"derived":true,"evidenceMineId":"4405212","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405212|P10915|1980-07-09|C07954|1980-07-09|76061"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P00022","name":"Meadows Coal Company"},"object":{"type":"mine","id":"4405212","name":"Mine No 4a"},"validFrom":"1981-02-11","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405212|P00022|1981-02-11|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00007","name":"Paris  Meadows et al"},"object":{"type":"operator","id":"P00022","name":"Meadows Coal Company"},"validFrom":"1981-02-11","validTo":null,"current":true,"derived":true,"evidenceMineId":"4405212","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405212|P00022|1981-02-11|C00007|1975-02-20|43174"}}],"coverage":{"historyRecords":4,"edgeCount":12,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4405212","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"}}