{"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":"0101814","name":"Cassidy Strip"},"operator":{"type":"operator","id":"P07545","name":"Warrior River Coal Company"},"controller":{"type":"controller","id":"C06193","name":"Louisiana Land & Exploration Company"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C03189","name":"Wood Lloyd"},"object":{"type":"mine","id":"0101814","name":"Cassidy Strip"},"validFrom":"1975-02-01","validTo":"1977-10-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0101814|C03189|1975-02-01|1977-10-31"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P03864","name":"Warrior River Coal Company"},"object":{"type":"mine","id":"0101814","name":"Cassidy Strip"},"validFrom":"1977-10-01","validTo":"1977-10-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0101814|P03864|1977-10-01|1977-10-31"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C03189","name":"Wood Lloyd"},"object":{"type":"operator","id":"P03864","name":"Warrior River Coal Company"},"validFrom":"1977-10-01","validTo":"1977-10-31","current":false,"derived":true,"evidenceMineId":"0101814","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0101814|P03864|1977-10-01|C03189|1975-02-01|62177"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P07545","name":"Warrior River Coal Company"},"object":{"type":"mine","id":"0101814","name":"Cassidy Strip"},"validFrom":"1977-11-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0101814|P07545|1977-11-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C06193","name":"Louisiana Land & Exploration Company"},"object":{"type":"mine","id":"0101814","name":"Cassidy Strip"},"validFrom":"1977-11-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0101814|C06193|1977-11-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C06193","name":"Louisiana Land & Exploration Company"},"object":{"type":"operator","id":"P07545","name":"Warrior River Coal Company"},"validFrom":"1977-11-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"0101814","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0101814|P07545|1977-11-01|C06193|1977-11-01|71156"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0101814","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"}}