{"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":"2003207","name":"Lake Diana Development Inc."},"operator":{"type":"operator","id":"0050695","name":"Lake Diana Development Inc."},"controller":{"type":"controller","id":"0041023","name":"Larry  Feyers"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L18356","name":"J P S Materials Llc"},"object":{"type":"mine","id":"2003207","name":"Lake Diana Development Inc."},"validFrom":"2001-06-01","validTo":"2002-09-23","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003207|L18356|2001-06-01|2002-09-23"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M14109","name":"Al  Shaw"},"object":{"type":"mine","id":"2003207","name":"Lake Diana Development Inc."},"validFrom":"2001-06-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003207|M14109|2001-06-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M14109","name":"Al  Shaw"},"object":{"type":"operator","id":"L18356","name":"J P S Materials Llc"},"validFrom":"2001-06-01","validTo":"2002-09-23","current":false,"derived":true,"evidenceMineId":"2003207","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003207|L18356|2001-06-01|M14109|2001-06-01|157480"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0050695","name":"Lake Diana Development Inc."},"object":{"type":"mine","id":"2003207","name":"Lake Diana Development Inc."},"validFrom":"2002-09-24","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003207|0050695|2002-09-24|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0041023","name":"Larry  Feyers"},"object":{"type":"mine","id":"2003207","name":"Lake Diana Development Inc."},"validFrom":"2002-09-24","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003207|0041023|2002-09-24|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0041023","name":"Larry  Feyers"},"object":{"type":"operator","id":"0050695","name":"Lake Diana Development Inc."},"validFrom":"2002-09-24","validTo":null,"current":true,"derived":true,"evidenceMineId":"2003207","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003207|0050695|2002-09-24|0041023|2002-09-24|1215"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"2003207","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"}}