{"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":"2026-10-17T05:35:58.500035+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":"1202005","name":"Eureka Underground"},"operator":{"type":"operator","id":"0134433","name":"IN Limestone Co"},"controller":{"type":"controller","id":"M12431","name":"Polycor Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L13938","name":"Elliott Mineral Extraction Inc"},"object":{"type":"mine","id":"1202005","name":"Eureka Underground"},"validFrom":"1987-06-01","validTo":"2019-09-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1202005|L13938|1987-06-01|2019-09-30"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M05509","name":"Cindy  Elliott et al"},"object":{"type":"mine","id":"1202005","name":"Eureka Underground"},"validFrom":"1987-06-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1202005|M05509|1987-06-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M05509","name":"Cindy  Elliott et al"},"object":{"type":"operator","id":"L13938","name":"Elliott Mineral Extraction Inc"},"validFrom":"1987-06-01","validTo":"2019-09-30","current":false,"derived":true,"evidenceMineId":"1202005","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1202005|L13938|1987-06-01|M05509|1987-06-01|134808"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M05509","name":"Brian  Elliott et al"},"object":{"type":"operator","id":"L13938","name":"Elliott Mineral Extraction Inc"},"validFrom":"1987-06-01","validTo":"2019-09-30","current":false,"derived":true,"evidenceMineId":"1202005","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1202005|L13938|1987-06-01|M05509|1987-06-01|134809"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0114401","name":"Limestone Holdings Corporation"},"object":{"type":"mine","id":"1202005","name":"Eureka Underground"},"validFrom":"2014-05-02","validTo":"2014-05-12","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1202005|0114401|2014-05-02|2014-05-12"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0137285","name":"Wynnchurch Capital"},"object":{"type":"mine","id":"1202005","name":"Eureka Underground"},"validFrom":"2014-05-13","validTo":"2018-10-10","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1202005|0137285|2014-05-13|2018-10-10"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M12431","name":"Polycor Inc"},"object":{"type":"mine","id":"1202005","name":"Eureka Underground"},"validFrom":"2018-10-11","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1202005|M12431|2018-10-11|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0134433","name":"IN Limestone Co"},"object":{"type":"mine","id":"1202005","name":"Eureka Underground"},"validFrom":"2019-10-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1202005|0134433|2019-10-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0114401","name":"Limestone Holdings Corporation"},"object":{"type":"operator","id":"0134433","name":"IN Limestone Co"},"validFrom":"2019-10-01","validTo":"2014-05-12","current":false,"derived":true,"evidenceMineId":"1202005","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1202005|0134433|2019-10-01|0114401|2014-05-02|21499"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0137285","name":"Wynnchurch Capital"},"object":{"type":"operator","id":"0134433","name":"IN Limestone Co"},"validFrom":"2019-10-01","validTo":"2018-10-10","current":false,"derived":true,"evidenceMineId":"1202005","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1202005|0134433|2019-10-01|0137285|2014-05-13|27730"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M12431","name":"Polycor Inc"},"object":{"type":"operator","id":"0134433","name":"IN Limestone Co"},"validFrom":"2019-10-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"1202005","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1202005|0134433|2019-10-01|M12431|2018-10-11|153750"}}],"coverage":{"historyRecords":5,"edgeCount":11,"intervalAnomalies":2,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1202005","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}