{"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":"4608338","name":"North Branch Operations"},"operator":{"type":"operator","id":"P23151","name":"Link Resources Inc"},"controller":{"type":"controller","id":"C15262","name":"Sanden G A"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22503","name":"United Energy Service Corp"},"object":{"type":"mine","id":"4608338","name":"North Branch Operations"},"validFrom":"1993-08-01","validTo":"1994-02-05","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608338|P22503|1993-08-01|1994-02-05"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14924","name":"Gilbert Associates Inc"},"object":{"type":"mine","id":"4608338","name":"North Branch Operations"},"validFrom":"1993-08-01","validTo":"1994-02-05","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608338|C14924|1993-08-01|1994-02-05"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14924","name":"Gilbert Associates Inc"},"object":{"type":"operator","id":"P22503","name":"United Energy Service Corp"},"validFrom":"1993-08-01","validTo":"1994-02-05","current":false,"derived":true,"evidenceMineId":"4608338","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608338|P22503|1993-08-01|C14924|1993-08-01|94269"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22702","name":"R W Beck Plant Management Ltd"},"object":{"type":"mine","id":"4608338","name":"North Branch Operations"},"validFrom":"1994-02-06","validTo":"1995-03-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608338|P22702|1994-02-06|1995-03-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C15024","name":"Beck R W"},"object":{"type":"mine","id":"4608338","name":"North Branch Operations"},"validFrom":"1994-02-06","validTo":"1995-03-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608338|C15024|1994-02-06|1995-03-31"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15024","name":"Beck R W"},"object":{"type":"operator","id":"P22702","name":"R W Beck Plant Management Ltd"},"validFrom":"1994-02-06","validTo":"1995-03-31","current":false,"derived":true,"evidenceMineId":"4608338","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608338|P22702|1994-02-06|C15024|1994-02-06|94594"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P23151","name":"Link Resources Inc"},"object":{"type":"mine","id":"4608338","name":"North Branch Operations"},"validFrom":"1995-04-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608338|P23151|1995-04-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C15262","name":"Sanden G A"},"object":{"type":"mine","id":"4608338","name":"North Branch Operations"},"validFrom":"1995-04-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608338|C15262|1995-04-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15262","name":"Sanden G A"},"object":{"type":"operator","id":"P23151","name":"Link Resources Inc"},"validFrom":"1995-04-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"4608338","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608338|P23151|1995-04-01|C15262|1995-04-01|95115"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4608338","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"}}