{"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":"1201599","name":"Warrior Plant #1"},"operator":{"type":"operator","id":"P18503","name":"Allied Minerals Inc"},"controller":{"type":"controller","id":"C08630","name":"Rooksby Robert T"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P07213","name":"J & R Coal Company"},"object":{"type":"mine","id":"1201599","name":"Warrior Plant #1"},"validFrom":"1977-09-01","validTo":"1988-06-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1201599|P07213|1977-09-01|1988-06-14"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C05964","name":"Valero Energy Corp"},"object":{"type":"mine","id":"1201599","name":"Warrior Plant #1"},"validFrom":"1977-09-01","validTo":"1988-06-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1201599|C05964|1977-09-01|1988-06-14"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C05964","name":"Valero Energy Corp"},"object":{"type":"operator","id":"P07213","name":"J & R Coal Company"},"validFrom":"1977-09-01","validTo":"1988-06-14","current":false,"derived":true,"evidenceMineId":"1201599","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1201599|P07213|1977-09-01|C05964|1977-09-01|70443"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C08630","name":"Rooksby Robert T"},"object":{"type":"mine","id":"1201599","name":"Warrior Plant #1"},"validFrom":"1987-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1201599|C08630|1987-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P18503","name":"Allied Minerals Inc"},"object":{"type":"mine","id":"1201599","name":"Warrior Plant #1"},"validFrom":"1988-06-15","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1201599|P18503|1988-06-15|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C08630","name":"Rooksby Robert T"},"object":{"type":"operator","id":"P18503","name":"Allied Minerals Inc"},"validFrom":"1988-06-15","validTo":null,"current":true,"derived":true,"evidenceMineId":"1201599","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1201599|P18503|1988-06-15|C08630|1987-01-01|77833"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1201599","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"}}