{"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":"3609076","name":"Williams Stone"},"operator":{"type":"operator","id":"0191533","name":"DG-Stone Supply LLC"},"controller":{"type":"controller","id":"0179720","name":"Diego G Vasquez"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"0050282","name":"J.D.W. Stone Quarry"},"object":{"type":"mine","id":"3609076","name":"Williams Stone"},"validFrom":"2002-04-25","validTo":"2023-08-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609076|0050282|2002-04-25|2023-08-30"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0040680","name":"Jeffrey D  Williams"},"object":{"type":"mine","id":"3609076","name":"Williams Stone"},"validFrom":"2002-04-25","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609076|0040680|2002-04-25|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0040680","name":"Jeffrey D  Williams"},"object":{"type":"operator","id":"0050282","name":"J.D.W. Stone Quarry"},"validFrom":"2002-04-25","validTo":"2023-08-30","current":false,"derived":true,"evidenceMineId":"3609076","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609076|0050282|2002-04-25|0040680|2002-04-25|464"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0191533","name":"DG-Stone Supply LLC"},"object":{"type":"mine","id":"3609076","name":"Williams Stone"},"validFrom":"2023-08-31","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609076|0191533|2023-08-31|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0179720","name":"Diego G Vasquez"},"object":{"type":"mine","id":"3609076","name":"Williams Stone"},"validFrom":"2023-08-31","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609076|0179720|2023-08-31|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0179720","name":"Diego G Vasquez"},"object":{"type":"operator","id":"0191533","name":"DG-Stone Supply LLC"},"validFrom":"2023-08-31","validTo":null,"current":true,"derived":true,"evidenceMineId":"3609076","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609076|0191533|2023-08-31|0179720|2023-08-31|38436"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3609076","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"}}