{"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":"0202846","name":"Ehrenberg Wash Pit"},"operator":{"type":"operator","id":"L16877","name":"Mineral Aggregate Recycling Services Inc"},"controller":{"type":"controller","id":"0041341","name":"Chester  Scott at al"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L16877","name":"Mineral Aggregate Recycling Services Inc"},"object":{"type":"mine","id":"0202846","name":"Ehrenberg Wash Pit"},"validFrom":"1999-08-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202846|L16877|1999-08-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M12889","name":"Hodge Donald R"},"object":{"type":"mine","id":"0202846","name":"Ehrenberg Wash Pit"},"validFrom":"1999-08-01","validTo":"2001-12-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202846|M12889|1999-08-01|2001-12-31"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M12889","name":"Hodge Donald R"},"object":{"type":"operator","id":"L16877","name":"Mineral Aggregate Recycling Services Inc"},"validFrom":"1999-08-01","validTo":"2001-12-31","current":false,"derived":true,"evidenceMineId":"0202846","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202846|L16877|1999-08-01|M12889|1999-08-01|154870"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0041341","name":"Chester  Scott at al"},"object":{"type":"mine","id":"0202846","name":"Ehrenberg Wash Pit"},"validFrom":"2002-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202846|0041341|2002-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0041341","name":"Chester  Scott at al"},"object":{"type":"operator","id":"L16877","name":"Mineral Aggregate Recycling Services Inc"},"validFrom":"2002-01-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"0202846","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202846|L16877|1999-08-01|0041341|2002-01-01|2455"}}],"coverage":{"historyRecords":2,"edgeCount":5,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0202846","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"}}