{"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":"1507314","name":"No 1 Mine"},"operator":{"type":"operator","id":"P02928","name":"Sky View Mining Inc"},"controller":{"type":"controller","id":"C02535","name":"Harold E  Akers; Jim D  Akers"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P02928","name":"Sky View Mining Inc"},"object":{"type":"mine","id":"1507314","name":"No 1 Mine"},"validFrom":"1974-09-11","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1507314|P02928|1974-09-11|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02535","name":"Jim D  Akers et al"},"object":{"type":"mine","id":"1507314","name":"No 1 Mine"},"validFrom":"1974-09-11","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1507314|C02535|1974-09-11|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02535","name":"Jim D  Akers et al"},"object":{"type":"operator","id":"P02928","name":"Sky View Mining Inc"},"validFrom":"1974-09-11","validTo":null,"current":true,"derived":true,"evidenceMineId":"1507314","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1507314|P02928|1974-09-11|C02535|1974-09-11|59775"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02535","name":"Harold E  Akers et al"},"object":{"type":"operator","id":"P02928","name":"Sky View Mining Inc"},"validFrom":"1974-09-11","validTo":null,"current":true,"derived":true,"evidenceMineId":"1507314","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1507314|P02928|1974-09-11|C02535|1974-09-11|59776"}}],"coverage":{"historyRecords":2,"edgeCount":4,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1507314","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"}}