{"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":"1401783","name":"Olpe Kansas"},"operator":{"type":"operator","id":"0051022","name":"US Stone Industries LLC"},"controller":{"type":"controller","id":"0197441","name":"Brent B  Bayer; Benjamin  Retter; Kent  Barnow"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"0041389","name":"Brent B  Bayer et al"},"object":{"type":"mine","id":"1401783","name":"Olpe Kansas"},"validFrom":"2001-06-01","validTo":"2026-01-07","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1401783|0041389|2001-06-01|2026-01-07"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0051022","name":"US Stone Industries LLC"},"object":{"type":"mine","id":"1401783","name":"Olpe Kansas"},"validFrom":"2016-12-20","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1401783|0051022|2016-12-20|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0041389","name":"Brent B  Bayer et al"},"object":{"type":"operator","id":"0051022","name":"US Stone Industries LLC"},"validFrom":"2016-12-20","validTo":"2026-01-07","current":false,"derived":true,"evidenceMineId":"1401783","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1401783|0051022|2016-12-20|0041389|2001-06-01|2536"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0041389","name":"Kent  Barnow et al"},"object":{"type":"operator","id":"0051022","name":"US Stone Industries LLC"},"validFrom":"2016-12-20","validTo":"2026-01-07","current":false,"derived":true,"evidenceMineId":"1401783","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1401783|0051022|2016-12-20|0041389|2001-06-01|2537"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0197441","name":"Benjamin  Retter et al"},"object":{"type":"mine","id":"1401783","name":"Olpe Kansas"},"validFrom":"2026-01-08","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1401783|0197441|2026-01-08|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0197441","name":"Benjamin  Retter et al"},"object":{"type":"operator","id":"0051022","name":"US Stone Industries LLC"},"validFrom":"2026-01-08","validTo":null,"current":true,"derived":true,"evidenceMineId":"1401783","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1401783|0051022|2016-12-20|0197441|2026-01-08|42099"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0197441","name":"Brent B  Bayer et al"},"object":{"type":"operator","id":"0051022","name":"US Stone Industries LLC"},"validFrom":"2026-01-08","validTo":null,"current":true,"derived":true,"evidenceMineId":"1401783","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1401783|0051022|2016-12-20|0197441|2026-01-08|42100"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0197441","name":"Kent  Barnow et al"},"object":{"type":"operator","id":"0051022","name":"US Stone Industries LLC"},"validFrom":"2026-01-08","validTo":null,"current":true,"derived":true,"evidenceMineId":"1401783","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1401783|0051022|2016-12-20|0197441|2026-01-08|42101"}}],"coverage":{"historyRecords":5,"edgeCount":8,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1401783","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"}}