{"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":"0102678","name":"Steep Creek Iii"},"operator":{"type":"operator","id":"P21065","name":"Sure Coal Inc"},"controller":{"type":"controller","id":"C14209","name":"Nelson Ramona H"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C10499","name":"Faulkner W E"},"object":{"type":"mine","id":"0102678","name":"Steep Creek Iii"},"validFrom":"1983-06-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0102678|C10499|1983-06-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P14498","name":"Faulkner Energy Corp"},"object":{"type":"mine","id":"0102678","name":"Steep Creek Iii"},"validFrom":"1986-04-01","validTo":"1990-11-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0102678|P14498|1986-04-01|1990-11-14"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C10499","name":"Faulkner W E"},"object":{"type":"operator","id":"P14498","name":"Faulkner Energy Corp"},"validFrom":"1986-04-01","validTo":"1990-11-14","current":false,"derived":true,"evidenceMineId":"0102678","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0102678|P14498|1986-04-01|C10499|1983-06-01|82148"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C13539","name":"Tuggle James A"},"object":{"type":"mine","id":"0102678","name":"Steep Creek Iii"},"validFrom":"1988-08-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0102678|C13539|1988-08-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14209","name":"Nelson Ramona H"},"object":{"type":"mine","id":"0102678","name":"Steep Creek Iii"},"validFrom":"1990-06-14","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0102678|C14209|1990-06-14|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P19797","name":"Dove Coal Corp"},"object":{"type":"mine","id":"0102678","name":"Steep Creek Iii"},"validFrom":"1990-11-15","validTo":"1991-02-20","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0102678|P19797|1990-11-15|1991-02-20"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C13539","name":"Tuggle James A"},"object":{"type":"operator","id":"P19797","name":"Dove Coal Corp"},"validFrom":"1990-11-15","validTo":"1991-02-20","current":false,"derived":true,"evidenceMineId":"0102678","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0102678|P19797|1990-11-15|C13539|1988-08-01|90249"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P14498","name":"Faulkner Energy Corp"},"object":{"type":"mine","id":"0102678","name":"Steep Creek Iii"},"validFrom":"1991-02-21","validTo":"1991-07-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0102678|P14498|1991-02-21|1991-07-30"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C10499","name":"Faulkner W E"},"object":{"type":"operator","id":"P14498","name":"Faulkner Energy Corp"},"validFrom":"1991-02-21","validTo":"1991-07-30","current":false,"derived":true,"evidenceMineId":"0102678","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0102678|P14498|1991-02-21|C10499|1983-06-01|82149"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P21065","name":"Sure Coal Inc"},"object":{"type":"mine","id":"0102678","name":"Steep Creek Iii"},"validFrom":"1991-07-31","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0102678|P21065|1991-07-31|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14209","name":"Nelson Ramona H"},"object":{"type":"operator","id":"P21065","name":"Sure Coal Inc"},"validFrom":"1991-07-31","validTo":null,"current":true,"derived":true,"evidenceMineId":"0102678","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0102678|P21065|1991-07-31|C14209|1990-06-14|92223"}}],"coverage":{"historyRecords":4,"edgeCount":11,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0102678","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"}}