{"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":"1002067","name":"Salmon River Rock Products"},"operator":{"type":"operator","id":"0101285","name":"Camas Gravel"},"controller":{"type":"controller","id":"M01485","name":"Tim  Kaschmitter; Bernie  Kaschmitter"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M01485","name":"Bernie  Kaschmitter  et al"},"object":{"type":"mine","id":"1002067","name":"Salmon River Rock Products"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1002067|M01485|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L03278","name":"Camas Gravel Co"},"object":{"type":"mine","id":"1002067","name":"Salmon River Rock Products"},"validFrom":"2005-03-07","validTo":"2008-12-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1002067|L03278|2005-03-07|2008-12-09"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M01485","name":"Bernie  Kaschmitter  et al"},"object":{"type":"operator","id":"L03278","name":"Camas Gravel Co"},"validFrom":"2005-03-07","validTo":"2008-12-09","current":false,"derived":true,"evidenceMineId":"1002067","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1002067|L03278|2005-03-07|M01485|1950-01-01|118872"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M01485","name":"Tim  Kaschmitter  et al"},"object":{"type":"operator","id":"L03278","name":"Camas Gravel Co"},"validFrom":"2005-03-07","validTo":"2008-12-09","current":false,"derived":true,"evidenceMineId":"1002067","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1002067|L03278|2005-03-07|M01485|1950-01-01|118873"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0101285","name":"Camas Gravel"},"object":{"type":"mine","id":"1002067","name":"Salmon River Rock Products"},"validFrom":"2008-12-10","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1002067|0101285|2008-12-10|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M01485","name":"Tim  Kaschmitter  et al"},"object":{"type":"mine","id":"1002067","name":"Salmon River Rock Products"},"validFrom":"2008-12-10","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1002067|M01485|2008-12-10|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M01485","name":"Tim  Kaschmitter  et al"},"object":{"type":"operator","id":"0101285","name":"Camas Gravel"},"validFrom":"2008-12-10","validTo":null,"current":true,"derived":true,"evidenceMineId":"1002067","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1002067|0101285|2008-12-10|M01485|2008-12-10|118876"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M01485","name":"Bernie  Kaschmitter  et al"},"object":{"type":"operator","id":"0101285","name":"Camas Gravel"},"validFrom":"2008-12-10","validTo":null,"current":true,"derived":true,"evidenceMineId":"1002067","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1002067|0101285|2008-12-10|M01485|2008-12-10|118877"}}],"coverage":{"historyRecords":4,"edgeCount":8,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1002067","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"}}