{"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":"2902177","name":"SCREEN PLANT #1"},"operator":{"type":"operator","id":"0097225","name":"Bruces Gravel"},"controller":{"type":"controller","id":"M14083","name":"Bruce  Jassmann"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L16087","name":"Golden Talon"},"object":{"type":"mine","id":"2902177","name":"SCREEN PLANT #1"},"validFrom":"1998-07-01","validTo":"2001-02-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2902177|L16087|1998-07-01|2001-02-28"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M12285","name":"Alfonso  Vigil"},"object":{"type":"mine","id":"2902177","name":"SCREEN PLANT #1"},"validFrom":"1998-07-01","validTo":"2001-02-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2902177|M12285|1998-07-01|2001-02-28"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M12285","name":"Alfonso  Vigil"},"object":{"type":"operator","id":"L16087","name":"Golden Talon"},"validFrom":"1998-07-01","validTo":"2001-02-28","current":false,"derived":true,"evidenceMineId":"2902177","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2902177|L16087|1998-07-01|M12285|1998-07-01|153453"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L18317","name":"Bruces Gravel"},"object":{"type":"mine","id":"2902177","name":"SCREEN PLANT #1"},"validFrom":"2001-03-01","validTo":"2008-12-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2902177|L18317|2001-03-01|2008-12-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M14083","name":"Bruce  Jassmann"},"object":{"type":"mine","id":"2902177","name":"SCREEN PLANT #1"},"validFrom":"2001-03-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2902177|M14083|2001-03-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M14083","name":"Bruce  Jassmann"},"object":{"type":"operator","id":"L18317","name":"Bruces Gravel"},"validFrom":"2001-03-01","validTo":"2008-12-31","current":false,"derived":true,"evidenceMineId":"2902177","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2902177|L18317|2001-03-01|M14083|2001-03-01|157435"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0097225","name":"Bruces Gravel"},"object":{"type":"mine","id":"2902177","name":"SCREEN PLANT #1"},"validFrom":"2009-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2902177|0097225|2009-01-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M14083","name":"Bruce  Jassmann"},"object":{"type":"mine","id":"2902177","name":"SCREEN PLANT #1"},"validFrom":"2009-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2902177|M14083|2009-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M14083","name":"Bruce  Jassmann"},"object":{"type":"operator","id":"0097225","name":"Bruces Gravel"},"validFrom":"2009-01-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"2902177","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2902177|0097225|2009-01-01|M14083|2009-01-01|157436"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"2902177","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"}}