{"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":"4002424","name":"No 1"},"operator":{"type":"operator","id":"P10966","name":"Alpha B M B Energy Inc"},"controller":{"type":"controller","id":"C08930","name":"Dupre Gail F"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02055","name":"Partin Richard L"},"object":{"type":"mine","id":"4002424","name":"No 1"},"validFrom":"1975-04-02","validTo":"1979-10-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4002424|C02055|1975-04-02|1979-10-31"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P02394","name":"Partin Coal Company Inc"},"object":{"type":"mine","id":"4002424","name":"No 1"},"validFrom":"1978-03-01","validTo":"1979-04-04","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4002424|P02394|1978-03-01|1979-04-04"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02055","name":"Partin Richard L"},"object":{"type":"operator","id":"P02394","name":"Partin Coal Company Inc"},"validFrom":"1978-03-01","validTo":"1979-04-04","current":false,"derived":true,"evidenceMineId":"4002424","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4002424|P02394|1978-03-01|C02055|1975-04-02|57324"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P09212","name":"T E C Coal Inc"},"object":{"type":"mine","id":"4002424","name":"No 1"},"validFrom":"1979-04-05","validTo":"1979-11-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4002424|P09212|1979-04-05|1979-11-14"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C05365","name":"Edwards Ronald G"},"object":{"type":"mine","id":"4002424","name":"No 1"},"validFrom":"1979-04-05","validTo":"1979-11-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4002424|C05365|1979-04-05|1979-11-14"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C05365","name":"Edwards Ronald G"},"object":{"type":"operator","id":"P09212","name":"T E C Coal Inc"},"validFrom":"1979-04-05","validTo":"1979-11-14","current":false,"derived":true,"evidenceMineId":"4002424","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4002424|P09212|1979-04-05|C05365|1979-04-05|68592"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C07578","name":"Gipson James M"},"object":{"type":"mine","id":"4002424","name":"No 1"},"validFrom":"1979-08-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4002424|C07578|1979-08-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P09767","name":"Eagle Mining Company"},"object":{"type":"mine","id":"4002424","name":"No 1"},"validFrom":"1979-11-15","validTo":"1980-09-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4002424|P09767|1979-11-15|1980-09-14"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C07578","name":"Gipson James M"},"object":{"type":"operator","id":"P09767","name":"Eagle Mining Company"},"validFrom":"1979-11-15","validTo":"1980-09-14","current":false,"derived":true,"evidenceMineId":"4002424","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4002424|P09767|1979-11-15|C07578|1979-08-01|75100"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P10966","name":"Alpha B M B Energy Inc"},"object":{"type":"mine","id":"4002424","name":"No 1"},"validFrom":"1980-09-15","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4002424|P10966|1980-09-15|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C08930","name":"Dupre Gail F"},"object":{"type":"mine","id":"4002424","name":"No 1"},"validFrom":"1980-09-15","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4002424|C08930|1980-09-15|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C08930","name":"Dupre Gail F"},"object":{"type":"operator","id":"P10966","name":"Alpha B M B Energy Inc"},"validFrom":"1980-09-15","validTo":null,"current":true,"derived":true,"evidenceMineId":"4002424","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4002424|P10966|1980-09-15|C08930|1980-09-15|78462"}}],"coverage":{"historyRecords":4,"edgeCount":12,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4002424","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"}}