{"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":"4404238","name":"No 1 Strip"},"operator":{"type":"operator","id":"P07708","name":"Jeri Mining Company Inc"},"controller":{"type":"controller","id":"C02424","name":"Hornsby Edward"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P04667","name":"Mill Creek Mining Inc"},"object":{"type":"mine","id":"4404238","name":"No 1 Strip"},"validFrom":"1975-12-01","validTo":"1977-10-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4404238|P04667|1975-12-01|1977-10-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C03850","name":"Phillips Fred G"},"object":{"type":"mine","id":"4404238","name":"No 1 Strip"},"validFrom":"1975-12-01","validTo":"1977-10-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4404238|C03850|1975-12-01|1977-10-31"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C03850","name":"Phillips Fred G"},"object":{"type":"operator","id":"P04667","name":"Mill Creek Mining Inc"},"validFrom":"1975-12-01","validTo":"1977-10-31","current":false,"derived":true,"evidenceMineId":"4404238","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4404238|P04667|1975-12-01|C03850|1975-12-01|64026"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P07708","name":"Jeri Mining Company Inc"},"object":{"type":"mine","id":"4404238","name":"No 1 Strip"},"validFrom":"1977-11-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4404238|P07708|1977-11-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02424","name":"Hornsby Edward"},"object":{"type":"mine","id":"4404238","name":"No 1 Strip"},"validFrom":"1977-11-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4404238|C02424|1977-11-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02424","name":"Hornsby Edward"},"object":{"type":"operator","id":"P07708","name":"Jeri Mining Company Inc"},"validFrom":"1977-11-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"4404238","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4404238|P07708|1977-11-01|C02424|1977-11-01|58422"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4404238","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"}}