{"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":"0202372","name":"1050 Estrella Pit"},"operator":{"type":"operator","id":"0186133","name":"Arcosa Aggregates West, LLC."},"controller":{"type":"controller","id":"0144281","name":"Arcosa, Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M07478","name":"DAVID M  DAY"},"object":{"type":"mine","id":"0202372","name":"1050 Estrella 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":"0202372|M07478|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L09531","name":"Day and Sons LLC"},"object":{"type":"mine","id":"0202372","name":"1050 Estrella Pit"},"validFrom":"1987-05-01","validTo":"2005-10-02","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202372|L09531|1987-05-01|2005-10-02"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M07478","name":"DAVID M  DAY"},"object":{"type":"operator","id":"L09531","name":"Day and Sons LLC"},"validFrom":"1987-05-01","validTo":"2005-10-02","current":false,"derived":true,"evidenceMineId":"0202372","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202372|L09531|1987-05-01|M07478|1950-01-01|141341"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M12625","name":"Chris  Reinesch et al"},"object":{"type":"mine","id":"0202372","name":"1050 Estrella Pit"},"validFrom":"1999-06-01","validTo":"2005-12-18","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202372|M12625|1999-06-01|2005-12-18"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0067083","name":"White Mountain Rock Products, LLC"},"object":{"type":"mine","id":"0202372","name":"1050 Estrella Pit"},"validFrom":"2005-10-03","validTo":"2014-02-11","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202372|0067083|2005-10-03|2014-02-11"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0056289","name":"Steve J  Hood et al"},"object":{"type":"mine","id":"0202372","name":"1050 Estrella Pit"},"validFrom":"2005-10-03","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202372|0056289|2005-10-03|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0056289","name":"Steve J  Hood et al"},"object":{"type":"operator","id":"0067083","name":"White Mountain Rock Products, LLC"},"validFrom":"2005-10-03","validTo":"2014-02-11","current":false,"derived":true,"evidenceMineId":"0202372","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202372|0067083|2005-10-03|0056289|2005-10-03|7313"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0056289","name":"Chris J  Reinesch et al"},"object":{"type":"operator","id":"0067083","name":"White Mountain Rock Products, LLC"},"validFrom":"2005-10-03","validTo":"2014-02-11","current":false,"derived":true,"evidenceMineId":"0202372","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202372|0067083|2005-10-03|0056289|2005-10-03|7314"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0056289","name":"Steve J  Hood et al"},"object":{"type":"mine","id":"0202372","name":"1050 Estrella Pit"},"validFrom":"2005-12-19","validTo":"2021-08-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202372|0056289|2005-12-19|2021-08-03"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L16500","name":"Southwest Rock Products LLC"},"object":{"type":"mine","id":"0202372","name":"1050 Estrella Pit"},"validFrom":"2014-02-12","validTo":"2021-08-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202372|L16500|2014-02-12|2021-08-03"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0056289","name":"Steve J  Hood et al"},"object":{"type":"operator","id":"L16500","name":"Southwest Rock Products LLC"},"validFrom":"2014-02-12","validTo":"2021-08-03","current":false,"derived":true,"evidenceMineId":"0202372","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202372|L16500|2014-02-12|0056289|2005-12-19|7319"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0056289","name":"Chris J  Reinesch et al"},"object":{"type":"operator","id":"L16500","name":"Southwest Rock Products LLC"},"validFrom":"2014-02-12","validTo":"2021-08-03","current":false,"derived":true,"evidenceMineId":"0202372","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202372|L16500|2014-02-12|0056289|2005-12-19|7320"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M12625","name":"Chris  Reinesch et al"},"object":{"type":"operator","id":"L16500","name":"Southwest Rock Products LLC"},"validFrom":"2014-02-12","validTo":"2005-12-18","current":false,"derived":true,"evidenceMineId":"0202372","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202372|L16500|2014-02-12|M12625|1999-06-01|154159"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M12625","name":"Rochelle  Reinesch et al"},"object":{"type":"operator","id":"L16500","name":"Southwest Rock Products LLC"},"validFrom":"2014-02-12","validTo":"2005-12-18","current":false,"derived":true,"evidenceMineId":"0202372","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202372|L16500|2014-02-12|M12625|1999-06-01|154160"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0144281","name":"Arcosa, Inc"},"object":{"type":"mine","id":"0202372","name":"1050 Estrella Pit"},"validFrom":"2021-08-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202372|0144281|2021-08-04|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0144281","name":"Arcosa, Inc"},"object":{"type":"operator","id":"L16500","name":"Southwest Rock Products LLC"},"validFrom":"2021-08-04","validTo":"2021-08-03","current":false,"derived":true,"evidenceMineId":"0202372","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202372|L16500|2014-02-12|0144281|2021-08-04|29354"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0178493","name":"White Mountain Properties"},"object":{"type":"mine","id":"0202372","name":"1050 Estrella Pit"},"validFrom":"2021-08-04","validTo":"2024-09-08","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202372|0178493|2021-08-04|2024-09-08"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0144281","name":"Arcosa, Inc"},"object":{"type":"operator","id":"0178493","name":"White Mountain Properties"},"validFrom":"2021-08-04","validTo":"2024-09-08","current":false,"derived":true,"evidenceMineId":"0202372","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202372|0178493|2021-08-04|0144281|2021-08-04|29355"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0144281","name":"Arcosa, Inc"},"object":{"type":"mine","id":"0202372","name":"1050 Estrella Pit"},"validFrom":"2022-12-12","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202372|0144281|2022-12-12|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0186133","name":"Arcosa Aggregates West, LLC."},"object":{"type":"mine","id":"0202372","name":"1050 Estrella Pit"},"validFrom":"2024-09-09","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202372|0186133|2024-09-09|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0144281","name":"Arcosa, Inc"},"object":{"type":"operator","id":"0186133","name":"Arcosa Aggregates West, LLC."},"validFrom":"2024-09-09","validTo":null,"current":true,"derived":true,"evidenceMineId":"0202372","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202372|0186133|2024-09-09|0144281|2022-12-12|29374"}}],"coverage":{"historyRecords":10,"edgeCount":21,"intervalAnomalies":3,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0202372","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"}}