{"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":"2600891","name":"Norse Windfall Mines Incorporated"},"operator":{"type":"operator","id":"L09560","name":"Norse Windfall Mines Inc"},"controller":{"type":"controller","id":"M07500","name":"Foss Ted"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L05212","name":"Windfall Venture"},"object":{"type":"mine","id":"2600891","name":"Norse Windfall Mines Incorporated"},"validFrom":"1950-01-01","validTo":"1981-03-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2600891|L05212|1950-01-01|1981-03-09"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M04212","name":"Wilson William L Et Al"},"object":{"type":"mine","id":"2600891","name":"Norse Windfall Mines Incorporated"},"validFrom":"1950-01-01","validTo":"1986-11-10","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2600891|M04212|1950-01-01|1986-11-10"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M04212","name":"Wilson William L Et Al"},"object":{"type":"operator","id":"L05212","name":"Windfall Venture"},"validFrom":"1950-01-01","validTo":"1981-03-09","current":false,"derived":true,"evidenceMineId":"2600891","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2600891|L05212|1950-01-01|M04212|1950-01-01|131447"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L05213","name":"Western-Windfall Ltd"},"object":{"type":"mine","id":"2600891","name":"Norse Windfall Mines Incorporated"},"validFrom":"1981-03-10","validTo":"1983-11-21","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2600891|L05213|1981-03-10|1983-11-21"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M04213","name":"Western Gas Oil & Mining Ltd & Windfall Venture"},"object":{"type":"mine","id":"2600891","name":"Norse Windfall Mines Incorporated"},"validFrom":"1981-03-10","validTo":"1983-11-21","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2600891|M04213|1981-03-10|1983-11-21"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M04213","name":"Western Gas Oil & Mining Ltd & Windfall Venture"},"object":{"type":"operator","id":"L05213","name":"Western-Windfall Ltd"},"validFrom":"1981-03-10","validTo":"1983-11-21","current":false,"derived":true,"evidenceMineId":"2600891","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2600891|L05213|1981-03-10|M04213|1981-03-10|131449"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L05212","name":"Windfall Venture"},"object":{"type":"mine","id":"2600891","name":"Norse Windfall Mines Incorporated"},"validFrom":"1983-11-22","validTo":"1986-11-10","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2600891|L05212|1983-11-22|1986-11-10"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M04212","name":"Wilson William L Et Al"},"object":{"type":"operator","id":"L05212","name":"Windfall Venture"},"validFrom":"1983-11-22","validTo":"1986-11-10","current":false,"derived":true,"evidenceMineId":"2600891","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2600891|L05212|1983-11-22|M04212|1950-01-01|131448"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L09560","name":"Norse Windfall Mines Inc"},"object":{"type":"mine","id":"2600891","name":"Norse Windfall Mines Incorporated"},"validFrom":"1986-11-11","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2600891|L09560|1986-11-11|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M07500","name":"Foss Ted"},"object":{"type":"mine","id":"2600891","name":"Norse Windfall Mines Incorporated"},"validFrom":"1986-11-11","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2600891|M07500|1986-11-11|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M07500","name":"Foss Ted"},"object":{"type":"operator","id":"L09560","name":"Norse Windfall Mines Inc"},"validFrom":"1986-11-11","validTo":null,"current":true,"derived":true,"evidenceMineId":"2600891","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2600891|L09560|1986-11-11|M07500|1986-11-11|141399"}}],"coverage":{"historyRecords":4,"edgeCount":11,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"2600891","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"}}