{"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":"3003896","name":"QA 441 SER#10075"},"operator":{"type":"operator","id":"0077083","name":"HARVEY MATERIALS CORP."},"controller":{"type":"controller","id":"0161781","name":"Kurt  Harvey"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"0041675","name":"Gary A  Harvey"},"object":{"type":"mine","id":"3003896","name":"QA 441 SER#10075"},"validFrom":"2006-02-17","validTo":"2021-03-16","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3003896|0041675|2006-02-17|2021-03-16"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0077083","name":"Harvey Materials Corp."},"object":{"type":"mine","id":"3003896","name":"QA 441 SER#10075"},"validFrom":"2013-08-21","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3003896|0077083|2013-08-21|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0041675","name":"Gary A  Harvey"},"object":{"type":"operator","id":"0077083","name":"Harvey Materials Corp."},"validFrom":"2013-08-21","validTo":"2021-03-16","current":false,"derived":true,"evidenceMineId":"3003896","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3003896|0077083|2013-08-21|0041675|2006-02-17|2966"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0161781","name":"Kurt  Harvey"},"object":{"type":"mine","id":"3003896","name":"QA 441 SER#10075"},"validFrom":"2021-03-17","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3003896|0161781|2021-03-17|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0161781","name":"Kurt  Harvey"},"object":{"type":"operator","id":"0077083","name":"Harvey Materials Corp."},"validFrom":"2021-03-17","validTo":null,"current":true,"derived":true,"evidenceMineId":"3003896","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3003896|0077083|2013-08-21|0161781|2021-03-17|33886"}}],"coverage":{"historyRecords":2,"edgeCount":5,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3003896","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"}}