{"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":"2103495","name":"Vergas Pit"},"operator":{"type":"operator","id":"0151556","name":"R.J. Zavoral Paving, Inc."},"controller":{"type":"controller","id":"0196301","name":"John  Zavoral; Benjamin Robert  Horken; Daniel John  Zavoral; Joseph Rob"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"0040638","name":"Curtis W  Olson"},"object":{"type":"mine","id":"2103495","name":"Vergas Pit"},"validFrom":"2002-05-08","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2103495|0040638|2002-05-08|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0050232","name":"Olson Gravel Inc"},"object":{"type":"mine","id":"2103495","name":"Vergas Pit"},"validFrom":"2005-05-17","validTo":"2025-10-06","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2103495|0050232|2005-05-17|2025-10-06"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0040638","name":"Curtis W  Olson"},"object":{"type":"operator","id":"0050232","name":"Olson Gravel Inc"},"validFrom":"2005-05-17","validTo":"2025-10-06","current":false,"derived":true,"evidenceMineId":"2103495","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2103495|0050232|2005-05-17|0040638|2002-05-08|387"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0134103","name":"Robert M Zavoral et al"},"object":{"type":"mine","id":"2103495","name":"Vergas Pit"},"validFrom":"2017-05-30","validTo":"2025-10-06","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2103495|0134103|2017-05-30|2025-10-06"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0151556","name":"R.J. Zavoral Paving, Inc."},"object":{"type":"mine","id":"2103495","name":"Vergas Pit"},"validFrom":"2025-10-07","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2103495|0151556|2025-10-07|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0134103","name":"Robert M Zavoral et al"},"object":{"type":"operator","id":"0151556","name":"R.J. Zavoral Paving, Inc."},"validFrom":"2025-10-07","validTo":"2025-10-06","current":false,"derived":true,"evidenceMineId":"2103495","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2103495|0151556|2025-10-07|0134103|2017-05-30|26998"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0134103","name":"Peter M Zavoral et al"},"object":{"type":"operator","id":"0151556","name":"R.J. Zavoral Paving, Inc."},"validFrom":"2025-10-07","validTo":"2025-10-06","current":false,"derived":true,"evidenceMineId":"2103495","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2103495|0151556|2025-10-07|0134103|2017-05-30|26999"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0196301","name":"Daniel John  Zavoral et al"},"object":{"type":"mine","id":"2103495","name":"Vergas Pit"},"validFrom":"2025-10-07","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2103495|0196301|2025-10-07|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0196301","name":"Daniel John  Zavoral et al"},"object":{"type":"operator","id":"0151556","name":"R.J. Zavoral Paving, Inc."},"validFrom":"2025-10-07","validTo":null,"current":true,"derived":true,"evidenceMineId":"2103495","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2103495|0151556|2025-10-07|0196301|2025-10-07|41879"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0196301","name":"Joseph Robert  Zavoral et al"},"object":{"type":"operator","id":"0151556","name":"R.J. Zavoral Paving, Inc."},"validFrom":"2025-10-07","validTo":null,"current":true,"derived":true,"evidenceMineId":"2103495","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2103495|0151556|2025-10-07|0196301|2025-10-07|41880"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0196301","name":"Benjamin Robert  Horken et al"},"object":{"type":"operator","id":"0151556","name":"R.J. Zavoral Paving, Inc."},"validFrom":"2025-10-07","validTo":null,"current":true,"derived":true,"evidenceMineId":"2103495","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2103495|0151556|2025-10-07|0196301|2025-10-07|41881"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0196301","name":"John  Zavoral et al"},"object":{"type":"operator","id":"0151556","name":"R.J. Zavoral Paving, Inc."},"validFrom":"2025-10-07","validTo":null,"current":true,"derived":true,"evidenceMineId":"2103495","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2103495|0151556|2025-10-07|0196301|2025-10-07|41882"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0196301","name":"Michael Shane  Zavoral et al"},"object":{"type":"operator","id":"0151556","name":"R.J. Zavoral Paving, Inc."},"validFrom":"2025-10-07","validTo":null,"current":true,"derived":true,"evidenceMineId":"2103495","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2103495|0151556|2025-10-07|0196301|2025-10-07|41883"}}],"coverage":{"historyRecords":8,"edgeCount":13,"intervalAnomalies":2,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"2103495","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"}}