{"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":"2026-10-17T05:35:58.500035+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":"4606382","name":"Mine No 4 (1)"},"operator":{"type":"operator","id":"P19827","name":"Murphy'S Branch Inc"},"controller":{"type":"controller","id":"C00884","name":"William G  Skewes"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P19329","name":"Navaro Mining Inc"},"object":{"type":"mine","id":"4606382","name":"Mine No 4 (1)"},"validFrom":"1981-08-01","validTo":"1996-01-18","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4606382|P19329|1981-08-01|1996-01-18"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00884","name":"William G  Skewes"},"object":{"type":"mine","id":"4606382","name":"Mine No 4 (1)"},"validFrom":"1981-08-01","validTo":"1996-01-18","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4606382|C00884|1981-08-01|1996-01-18"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00884","name":"William G  Skewes"},"object":{"type":"operator","id":"P19329","name":"Navaro Mining Inc"},"validFrom":"1981-08-01","validTo":"1996-01-18","current":false,"derived":true,"evidenceMineId":"4606382","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4606382|P19329|1981-08-01|C00884|1981-08-01|50880"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00884","name":"William G  Skewes"},"object":{"type":"mine","id":"4606382","name":"Mine No 4 (1)"},"validFrom":"1988-10-25","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4606382|C00884|1988-10-25|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C15321","name":"Terry  Cline"},"object":{"type":"mine","id":"4606382","name":"Mine No 4 (1)"},"validFrom":"1995-10-10","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4606382|C15321|1995-10-10|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P23404","name":"Navaro Mining Inc"},"object":{"type":"mine","id":"4606382","name":"Mine No 4 (1)"},"validFrom":"1996-01-19","validTo":"1997-01-19","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4606382|P23404|1996-01-19|1997-01-19"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C13400","name":"Monk Arlie H (Rusty) Ii"},"object":{"type":"mine","id":"4606382","name":"Mine No 4 (1)"},"validFrom":"1996-01-19","validTo":"1997-01-19","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4606382|C13400|1996-01-19|1997-01-19"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C13400","name":"Monk Arlie H (Rusty) Ii"},"object":{"type":"operator","id":"P23404","name":"Navaro Mining Inc"},"validFrom":"1996-01-19","validTo":"1997-01-19","current":false,"derived":true,"evidenceMineId":"4606382","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4606382|P23404|1996-01-19|C13400|1996-01-19|89546"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P23724","name":"Cline Excavation Corp"},"object":{"type":"mine","id":"4606382","name":"Mine No 4 (1)"},"validFrom":"1997-01-20","validTo":"1998-03-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4606382|P23724|1997-01-20|1998-03-01"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15321","name":"Terry  Cline"},"object":{"type":"operator","id":"P23724","name":"Cline Excavation Corp"},"validFrom":"1997-01-20","validTo":"1998-03-01","current":false,"derived":true,"evidenceMineId":"4606382","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4606382|P23724|1997-01-20|C15321|1995-10-10|95290"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P19827","name":"Murphy'S Branch Inc"},"object":{"type":"mine","id":"4606382","name":"Mine No 4 (1)"},"validFrom":"1998-03-02","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4606382|P19827|1998-03-02|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00884","name":"William G  Skewes"},"object":{"type":"operator","id":"P19827","name":"Murphy'S Branch Inc"},"validFrom":"1998-03-02","validTo":null,"current":true,"derived":true,"evidenceMineId":"4606382","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4606382|P19827|1998-03-02|C00884|1988-10-25|50892"}}],"coverage":{"historyRecords":4,"edgeCount":12,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4606382","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}