{"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":"1517384","name":"#6"},"operator":{"type":"operator","id":"P18440","name":"T R & H Development Inc"},"controller":{"type":"controller","id":"C12056","name":"Robert C  Ratliff"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C12056","name":"Robert C  Ratliff"},"object":{"type":"mine","id":"1517384","name":"#6"},"validFrom":"1986-09-24","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1517384|C12056|1986-09-24|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22302","name":"Goose Creek Mining Inc"},"object":{"type":"mine","id":"1517384","name":"#6"},"validFrom":"1993-04-01","validTo":"1994-04-05","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1517384|P22302|1993-04-01|1994-04-05"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14657","name":"Derenge Lawrence"},"object":{"type":"mine","id":"1517384","name":"#6"},"validFrom":"1993-04-01","validTo":"1994-04-05","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1517384|C14657|1993-04-01|1994-04-05"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14657","name":"Derenge Lawrence"},"object":{"type":"operator","id":"P22302","name":"Goose Creek Mining Inc"},"validFrom":"1993-04-01","validTo":"1994-04-05","current":false,"derived":true,"evidenceMineId":"1517384","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1517384|P22302|1993-04-01|C14657|1993-04-01|93518"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P18440","name":"T R & H Development Inc"},"object":{"type":"mine","id":"1517384","name":"#6"},"validFrom":"1994-04-06","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1517384|P18440|1994-04-06|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C12056","name":"Robert C  Ratliff"},"object":{"type":"operator","id":"P18440","name":"T R & H Development Inc"},"validFrom":"1994-04-06","validTo":null,"current":true,"derived":true,"evidenceMineId":"1517384","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1517384|P18440|1994-04-06|C12056|1986-09-24|86030"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1517384","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"}}