{"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":"3200767","name":"Pit 1"},"operator":{"type":"operator","id":"0145553","name":"Kresse Gravel"},"controller":{"type":"controller","id":"0126041","name":"Richard A  Kresse"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L16012","name":"Kresse & Christl Gravel"},"object":{"type":"mine","id":"3200767","name":"Pit 1"},"validFrom":"1998-07-01","validTo":"2016-05-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3200767|L16012|1998-07-01|2016-05-03"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M12212","name":"Robert  Christl et al"},"object":{"type":"mine","id":"3200767","name":"Pit 1"},"validFrom":"1998-07-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3200767|M12212|1998-07-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M12212","name":"Robert  Christl et al"},"object":{"type":"operator","id":"L16012","name":"Kresse & Christl Gravel"},"validFrom":"1998-07-01","validTo":"2016-05-03","current":false,"derived":true,"evidenceMineId":"3200767","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3200767|L16012|1998-07-01|M12212|1998-07-01|153304"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M12212","name":"Richard  Kresse et al"},"object":{"type":"operator","id":"L16012","name":"Kresse & Christl Gravel"},"validFrom":"1998-07-01","validTo":"2016-05-03","current":false,"derived":true,"evidenceMineId":"3200767","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3200767|L16012|1998-07-01|M12212|1998-07-01|153305"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0145553","name":"Kresse Gravel"},"object":{"type":"mine","id":"3200767","name":"Pit 1"},"validFrom":"2016-05-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3200767|0145553|2016-05-04|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0126041","name":"Richard A  Kresse"},"object":{"type":"mine","id":"3200767","name":"Pit 1"},"validFrom":"2016-05-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3200767|0126041|2016-05-04|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0126041","name":"Richard A  Kresse"},"object":{"type":"operator","id":"0145553","name":"Kresse Gravel"},"validFrom":"2016-05-04","validTo":null,"current":true,"derived":true,"evidenceMineId":"3200767","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3200767|0145553|2016-05-04|0126041|2016-05-04|24441"}}],"coverage":{"historyRecords":3,"edgeCount":7,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3200767","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"}}