{"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":"4605835","name":"Nolan Run Job"},"operator":{"type":"operator","id":"P09265","name":"West Fork Construction Inc"},"controller":{"type":"controller","id":"C00541","name":"Cunningham Carl"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00041","name":"Richards Dian"},"object":{"type":"mine","id":"4605835","name":"Nolan Run Job"},"validFrom":"1977-04-01","validTo":"1979-03-12","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4605835|C00041|1977-04-01|1979-03-12"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P06483","name":"West Fork Construction Company Inc"},"object":{"type":"mine","id":"4605835","name":"Nolan Run Job"},"validFrom":"1978-07-01","validTo":"1979-03-12","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4605835|P06483|1978-07-01|1979-03-12"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00041","name":"Richards Dian"},"object":{"type":"operator","id":"P06483","name":"West Fork Construction Company Inc"},"validFrom":"1978-07-01","validTo":"1979-03-12","current":false,"derived":true,"evidenceMineId":"4605835","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4605835|P06483|1978-07-01|C00041|1977-04-01|43835"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P09265","name":"West Fork Construction Inc"},"object":{"type":"mine","id":"4605835","name":"Nolan Run Job"},"validFrom":"1979-03-13","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4605835|P09265|1979-03-13|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00541","name":"Cunningham Carl"},"object":{"type":"mine","id":"4605835","name":"Nolan Run Job"},"validFrom":"1979-03-13","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4605835|C00541|1979-03-13|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00541","name":"Cunningham Carl"},"object":{"type":"operator","id":"P09265","name":"West Fork Construction Inc"},"validFrom":"1979-03-13","validTo":null,"current":true,"derived":true,"evidenceMineId":"4605835","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4605835|P09265|1979-03-13|C00541|1979-03-13|47979"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4605835","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"}}