{"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":"0404499","name":"Beutel Backhoe Service Plant #2"},"operator":{"type":"operator","id":"L30944","name":"Beutel Backhoe Service"},"controller":{"type":"controller","id":"M30944","name":"Beutel Don"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L30944","name":"Beutel Backhoe Service"},"object":{"type":"mine","id":"0404499","name":"Beutel Backhoe Service Plant #2"},"validFrom":"1981-04-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0404499|L30944|1981-04-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M30944","name":"Beutel Don"},"object":{"type":"mine","id":"0404499","name":"Beutel Backhoe Service Plant #2"},"validFrom":"1981-04-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0404499|M30944|1981-04-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M30944","name":"Beutel Don"},"object":{"type":"operator","id":"L30944","name":"Beutel Backhoe Service"},"validFrom":"1981-04-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"0404499","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0404499|L30944|1981-04-01|M30944|1981-04-01|159194"}}],"coverage":{"historyRecords":1,"edgeCount":3,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0404499","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"}}