{"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":"3401961","name":"Henson #2"},"operator":{"type":"operator","id":"0062365","name":"FALCON MATERIALS LLC"},"controller":{"type":"controller","id":"0095713","name":"Silver Star Construction Company Inc.; The Cummins Construction Company"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"0062365","name":"FALCON MATERIALS LLC"},"object":{"type":"mine","id":"3401961","name":"Henson #2"},"validFrom":"2005-06-21","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3401961|0062365|2005-06-21|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0041983","name":"Annette D  Henson  et al"},"object":{"type":"mine","id":"3401961","name":"Henson #2"},"validFrom":"2005-06-21","validTo":"2007-05-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3401961|0041983|2005-06-21|2007-05-31"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0041983","name":"Annette D  Henson  et al"},"object":{"type":"operator","id":"0062365","name":"FALCON MATERIALS LLC"},"validFrom":"2005-06-21","validTo":"2007-05-31","current":false,"derived":true,"evidenceMineId":"3401961","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3401961|0062365|2005-06-21|0041983|2005-06-21|3408"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0041983","name":"Melvin D  Henson  Jr  et al"},"object":{"type":"operator","id":"0062365","name":"FALCON MATERIALS LLC"},"validFrom":"2005-06-21","validTo":"2007-05-31","current":false,"derived":true,"evidenceMineId":"3401961","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3401961|0062365|2005-06-21|0041983|2005-06-21|3409"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0095713","name":"Streater Dozer Service Inc. et al"},"object":{"type":"mine","id":"3401961","name":"Henson #2"},"validFrom":"2007-06-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3401961|0095713|2007-06-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0095713","name":"Streater Dozer Service Inc. et al"},"object":{"type":"operator","id":"0062365","name":"FALCON MATERIALS LLC"},"validFrom":"2007-06-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"3401961","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3401961|0062365|2005-06-21|0095713|2007-06-01|15783"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0095713","name":"Silver Star Construction Company Inc. et al"},"object":{"type":"operator","id":"0062365","name":"FALCON MATERIALS LLC"},"validFrom":"2007-06-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"3401961","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3401961|0062365|2005-06-21|0095713|2007-06-01|15784"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0095713","name":"The Cummins Construction Company Inc et al"},"object":{"type":"operator","id":"0062365","name":"FALCON MATERIALS LLC"},"validFrom":"2007-06-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"3401961","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3401961|0062365|2005-06-21|0095713|2007-06-01|15785"}}],"coverage":{"historyRecords":5,"edgeCount":8,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3401961","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"}}