{"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":"4703073","name":"Main Pit"},"operator":{"type":"operator","id":"0106505","name":"Cretex Materials Inc"},"controller":{"type":"controller","id":"M01534","name":"Cretex Companies Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M01534","name":"Cretex Companies Inc"},"object":{"type":"mine","id":"4703073","name":"Main Pit"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4703073|M01534|1950-01-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M01534","name":"Cretex Companies Inc"},"object":{"type":"mine","id":"4703073","name":"Main Pit"},"validFrom":"1991-12-23","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4703073|M01534|1991-12-23|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L12511","name":"Cretex Sand & Gravel Inc"},"object":{"type":"mine","id":"4703073","name":"Main Pit"},"validFrom":"1996-06-01","validTo":"2009-03-10","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4703073|L12511|1996-06-01|2009-03-10"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M01534","name":"Cretex Companies Inc"},"object":{"type":"operator","id":"L12511","name":"Cretex Sand & Gravel Inc"},"validFrom":"1996-06-01","validTo":"2009-03-10","current":false,"derived":true,"evidenceMineId":"4703073","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4703073|L12511|1996-06-01|M01534|1991-12-23|119122"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L01710","name":"JW Peters Inc"},"object":{"type":"mine","id":"4703073","name":"Main Pit"},"validFrom":"2009-03-11","validTo":"2010-01-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4703073|L01710|2009-03-11|2010-01-03"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M01534","name":"Cretex Companies Inc"},"object":{"type":"operator","id":"L01710","name":"JW Peters Inc"},"validFrom":"2009-03-11","validTo":"2010-01-03","current":false,"derived":true,"evidenceMineId":"4703073","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4703073|L01710|2009-03-11|M01534|1950-01-01|119120"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0106505","name":"Cretex Materials Inc"},"object":{"type":"mine","id":"4703073","name":"Main Pit"},"validFrom":"2010-01-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4703073|0106505|2010-01-04|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M01534","name":"Cretex Companies Inc"},"object":{"type":"mine","id":"4703073","name":"Main Pit"},"validFrom":"2010-01-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4703073|M01534|2010-01-04|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M01534","name":"Cretex Companies Inc"},"object":{"type":"operator","id":"0106505","name":"Cretex Materials Inc"},"validFrom":"2010-01-04","validTo":null,"current":true,"derived":true,"evidenceMineId":"4703073","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4703073|0106505|2010-01-04|M01534|2010-01-04|119126"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4703073","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"}}