{"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":"2200821","name":"Rebel Rock"},"operator":{"type":"operator","id":"0153854","name":"Rebel Rock, LLC"},"controller":{"type":"controller","id":"0136863","name":"Douglas  McCormick; Tim  Parker"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"0140433","name":"North Mississippi Gravel"},"object":{"type":"mine","id":"2200821","name":"Rebel Rock"},"validFrom":"2015-08-21","validTo":"2017-10-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2200821|0140433|2015-08-21|2017-10-01"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0119661","name":"Douglas  McCormick"},"object":{"type":"mine","id":"2200821","name":"Rebel Rock"},"validFrom":"2015-08-21","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2200821|0119661|2015-08-21|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0119661","name":"Douglas  McCormick"},"object":{"type":"operator","id":"0140433","name":"North Mississippi Gravel"},"validFrom":"2015-08-21","validTo":"2017-10-01","current":false,"derived":true,"evidenceMineId":"2200821","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2200821|0140433|2015-08-21|0119661|2015-08-21|22860"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0136863","name":"Douglas  McCormick et al"},"object":{"type":"mine","id":"2200821","name":"Rebel Rock"},"validFrom":"2017-10-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2200821|0136863|2017-10-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0153854","name":"North Mississippi Gravel Co, LLC"},"object":{"type":"mine","id":"2200821","name":"Rebel Rock"},"validFrom":"2017-10-02","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2200821|0153854|2017-10-02|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0136863","name":"Douglas  McCormick et al"},"object":{"type":"operator","id":"0153854","name":"North Mississippi Gravel Co, LLC"},"validFrom":"2017-10-02","validTo":null,"current":true,"derived":true,"evidenceMineId":"2200821","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2200821|0153854|2017-10-02|0136863|2017-10-01|27578"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0136863","name":"Tim  Parker et al"},"object":{"type":"operator","id":"0153854","name":"North Mississippi Gravel Co, LLC"},"validFrom":"2017-10-02","validTo":null,"current":true,"derived":true,"evidenceMineId":"2200821","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2200821|0153854|2017-10-02|0136863|2017-10-01|27579"}}],"coverage":{"historyRecords":3,"edgeCount":7,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"2200821","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"}}