{"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":"4403267","name":"Mine No 1"},"operator":{"type":"operator","id":"P18211","name":"Everglade Coal Corp"},"controller":{"type":"controller","id":"C01680","name":"Wallen Glenn A"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P01991","name":"B & W Coal Company Inc"},"object":{"type":"mine","id":"4403267","name":"Mine No 1"},"validFrom":"1950-01-01","validTo":"1974-03-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4403267|P01991|1950-01-01|1974-03-14"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C01681","name":"B & W Coal Company Inc"},"object":{"type":"mine","id":"4403267","name":"Mine No 1"},"validFrom":"1950-01-01","validTo":"1974-03-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4403267|C01681|1950-01-01|1974-03-14"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C01681","name":"B & W Coal Company Inc"},"object":{"type":"operator","id":"P01991","name":"B & W Coal Company Inc"},"validFrom":"1950-01-01","validTo":"1974-03-14","current":false,"derived":true,"evidenceMineId":"4403267","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4403267|P01991|1950-01-01|C01681|1950-01-01|55596"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P01990","name":"Glenwood Mining Corp"},"object":{"type":"mine","id":"4403267","name":"Mine No 1"},"validFrom":"1974-03-15","validTo":"1976-07-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4403267|P01990|1974-03-15|1976-07-14"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C01680","name":"Wallen Glenn A"},"object":{"type":"mine","id":"4403267","name":"Mine No 1"},"validFrom":"1974-03-15","validTo":"1976-07-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4403267|C01680|1974-03-15|1976-07-14"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C01680","name":"Wallen Glenn A"},"object":{"type":"operator","id":"P01990","name":"Glenwood Mining Corp"},"validFrom":"1974-03-15","validTo":"1976-07-14","current":false,"derived":true,"evidenceMineId":"4403267","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4403267|P01990|1974-03-15|C01680|1974-03-15|55587"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P02710","name":"Valley Fork Corp"},"object":{"type":"mine","id":"4403267","name":"Mine No 1"},"validFrom":"1976-07-15","validTo":"1986-02-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4403267|P02710|1976-07-15|1986-02-14"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02726","name":"Stacy Jack"},"object":{"type":"mine","id":"4403267","name":"Mine No 1"},"validFrom":"1976-07-15","validTo":"1986-02-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4403267|C02726|1976-07-15|1986-02-14"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02726","name":"Stacy Jack"},"object":{"type":"operator","id":"P02710","name":"Valley Fork Corp"},"validFrom":"1976-07-15","validTo":"1986-02-14","current":false,"derived":true,"evidenceMineId":"4403267","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4403267|P02710|1976-07-15|C02726|1976-07-15|60587"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P17540","name":"Everglade Coal Corp"},"object":{"type":"mine","id":"4403267","name":"Mine No 1"},"validFrom":"1986-02-15","validTo":"1986-10-16","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4403267|P17540|1986-02-15|1986-10-16"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C12319","name":"Thrower Monroe"},"object":{"type":"mine","id":"4403267","name":"Mine No 1"},"validFrom":"1986-02-15","validTo":"1986-10-16","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4403267|C12319|1986-02-15|1986-10-16"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C12319","name":"Thrower Monroe"},"object":{"type":"operator","id":"P17540","name":"Everglade Coal Corp"},"validFrom":"1986-02-15","validTo":"1986-10-16","current":false,"derived":true,"evidenceMineId":"4403267","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4403267|P17540|1986-02-15|C12319|1986-02-15|86596"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P18211","name":"Everglade Coal Corp"},"object":{"type":"mine","id":"4403267","name":"Mine No 1"},"validFrom":"1986-10-17","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4403267|P18211|1986-10-17|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C01680","name":"Wallen Glenn A"},"object":{"type":"mine","id":"4403267","name":"Mine No 1"},"validFrom":"1986-10-17","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4403267|C01680|1986-10-17|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C01680","name":"Wallen Glenn A"},"object":{"type":"operator","id":"P18211","name":"Everglade Coal Corp"},"validFrom":"1986-10-17","validTo":null,"current":true,"derived":true,"evidenceMineId":"4403267","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4403267|P18211|1986-10-17|C01680|1986-10-17|55591"}}],"coverage":{"historyRecords":5,"edgeCount":15,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4403267","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"}}