{"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":"0202172","name":"Frisco Gold Corp Mine"},"operator":{"type":"operator","id":"0210373","name":"Frisco Gold Corporation"},"controller":{"type":"controller","id":"0201581","name":"Joseph  Carrabba; Randall  Huffsmith; (Lloyd) Joseph  Bardswich"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L33431","name":"Frisco Land & Mining Company"},"object":{"type":"mine","id":"0202172","name":"Frisco Gold Corp Mine"},"validFrom":"1983-10-01","validTo":"2026-07-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202172|L33431|1983-10-01|2026-07-13"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M33431","name":"Bonelli B P"},"object":{"type":"mine","id":"0202172","name":"Frisco Gold Corp Mine"},"validFrom":"1983-10-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202172|M33431|1983-10-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M33431","name":"Bonelli B P"},"object":{"type":"operator","id":"L33431","name":"Frisco Land & Mining Company"},"validFrom":"1983-10-01","validTo":"2026-07-13","current":false,"derived":true,"evidenceMineId":"0202172","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202172|L33431|1983-10-01|M33431|1983-10-01|162020"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0210373","name":"Frisco Gold Corporation"},"object":{"type":"mine","id":"0202172","name":"Frisco Gold Corp Mine"},"validFrom":"2026-07-14","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202172|0210373|2026-07-14|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0201581","name":"Joseph  Carrabba et al"},"object":{"type":"mine","id":"0202172","name":"Frisco Gold Corp Mine"},"validFrom":"2026-07-14","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202172|0201581|2026-07-14|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0201581","name":"Joseph  Carrabba et al"},"object":{"type":"operator","id":"0210373","name":"Frisco Gold Corporation"},"validFrom":"2026-07-14","validTo":null,"current":true,"derived":true,"evidenceMineId":"0202172","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202172|0210373|2026-07-14|0201581|2026-07-14|42776"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0201581","name":"Randall  Huffsmith et al"},"object":{"type":"operator","id":"0210373","name":"Frisco Gold Corporation"},"validFrom":"2026-07-14","validTo":null,"current":true,"derived":true,"evidenceMineId":"0202172","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202172|0210373|2026-07-14|0201581|2026-07-14|42777"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0201581","name":"(Lloyd) Joseph  Bardswich et al"},"object":{"type":"operator","id":"0210373","name":"Frisco Gold Corporation"},"validFrom":"2026-07-14","validTo":null,"current":true,"derived":true,"evidenceMineId":"0202172","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202172|0210373|2026-07-14|0201581|2026-07-14|42778"}}],"coverage":{"historyRecords":4,"edgeCount":8,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0202172","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"}}