{"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":"3609527","name":"Hiduk Quarry"},"operator":{"type":"operator","id":"0090645","name":"Vasquez Stone"},"controller":{"type":"controller","id":"0104393","name":"Enrique E  Vasquez"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"0080924","name":"Cassel Brick Flagstone"},"object":{"type":"mine","id":"3609527","name":"Hiduk Quarry"},"validFrom":"2007-05-30","validTo":"2008-05-05","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609527|0080924|2007-05-30|2008-05-05"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0068091","name":"Cynthia L  Brink"},"object":{"type":"mine","id":"3609527","name":"Hiduk Quarry"},"validFrom":"2007-05-30","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609527|0068091|2007-05-30|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0068091","name":"Cynthia L  Brink"},"object":{"type":"operator","id":"0080924","name":"Cassel Brick Flagstone"},"validFrom":"2007-05-30","validTo":"2008-05-05","current":false,"derived":true,"evidenceMineId":"3609527","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609527|0080924|2007-05-30|0068091|2007-05-30|9557"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0090645","name":"Vasquez Stone"},"object":{"type":"mine","id":"3609527","name":"Hiduk Quarry"},"validFrom":"2008-05-06","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609527|0090645|2008-05-06|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0076013","name":"Enrique E  Vasquez et al"},"object":{"type":"mine","id":"3609527","name":"Hiduk Quarry"},"validFrom":"2008-05-06","validTo":"2010-10-07","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609527|0076013|2008-05-06|2010-10-07"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0076013","name":"Enrique E  Vasquez et al"},"object":{"type":"operator","id":"0090645","name":"Vasquez Stone"},"validFrom":"2008-05-06","validTo":"2010-10-07","current":false,"derived":true,"evidenceMineId":"3609527","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609527|0090645|2008-05-06|0076013|2008-05-06|11906"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0076013","name":"Mario B  Vasquez et al"},"object":{"type":"operator","id":"0090645","name":"Vasquez Stone"},"validFrom":"2008-05-06","validTo":"2010-10-07","current":false,"derived":true,"evidenceMineId":"3609527","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609527|0090645|2008-05-06|0076013|2008-05-06|11907"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0104393","name":"Enrique E  Vasquez"},"object":{"type":"mine","id":"3609527","name":"Hiduk Quarry"},"validFrom":"2010-10-08","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609527|0104393|2010-10-08|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0104393","name":"Enrique E  Vasquez"},"object":{"type":"operator","id":"0090645","name":"Vasquez Stone"},"validFrom":"2010-10-08","validTo":null,"current":true,"derived":true,"evidenceMineId":"3609527","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609527|0090645|2008-05-06|0104393|2010-10-08|18217"}}],"coverage":{"historyRecords":4,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3609527","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"}}