{"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":"4608814","name":"Rader Run Mine No 2"},"operator":{"type":"operator","id":"P24487","name":"Midland Trail Resources LLC"},"controller":{"type":"controller","id":"C15975","name":"Matt  Evans; Donald  Drabant"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C11164","name":"Frederick J  Taylor"},"object":{"type":"mine","id":"4608814","name":"Rader Run Mine No 2"},"validFrom":"1984-05-14","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608814|C11164|1984-05-14|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P15570","name":"Princess Polly Anna Coal Inc"},"object":{"type":"mine","id":"4608814","name":"Rader Run Mine No 2"},"validFrom":"1999-12-01","validTo":"2000-10-17","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608814|P15570|1999-12-01|2000-10-17"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C11164","name":"Frederick J  Taylor"},"object":{"type":"operator","id":"P15570","name":"Princess Polly Anna Coal Inc"},"validFrom":"1999-12-01","validTo":"2000-10-17","current":false,"derived":true,"evidenceMineId":"4608814","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608814|P15570|1999-12-01|C11164|1984-05-14|83782"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P24487","name":"Midland Trail Resources LLC"},"object":{"type":"mine","id":"4608814","name":"Rader Run Mine No 2"},"validFrom":"2000-10-18","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608814|P24487|2000-10-18|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C15975","name":"Matt  Evans et al"},"object":{"type":"mine","id":"4608814","name":"Rader Run Mine No 2"},"validFrom":"2000-10-18","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608814|C15975|2000-10-18|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15975","name":"Matt  Evans et al"},"object":{"type":"operator","id":"P24487","name":"Midland Trail Resources LLC"},"validFrom":"2000-10-18","validTo":null,"current":true,"derived":true,"evidenceMineId":"4608814","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608814|P24487|2000-10-18|C15975|2000-10-18|97889"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15975","name":"Donald  Drabant et al"},"object":{"type":"operator","id":"P24487","name":"Midland Trail Resources LLC"},"validFrom":"2000-10-18","validTo":null,"current":true,"derived":true,"evidenceMineId":"4608814","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608814|P24487|2000-10-18|C15975|2000-10-18|97890"}}],"coverage":{"historyRecords":3,"edgeCount":7,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4608814","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"}}