{"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":"4605943","name":"Mine No 1"},"operator":{"type":"operator","id":"P12701","name":"Bobcat Mining Inc"},"controller":{"type":"controller","id":"C09366","name":"Mc Daniel Charles"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P09407","name":"Mc Daniel Mining Company Inc"},"object":{"type":"mine","id":"4605943","name":"Mine No 1"},"validFrom":"1978-12-01","validTo":"1981-09-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4605943|P09407|1978-12-01|1981-09-14"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C07409","name":"Mc Daniel Vernon"},"object":{"type":"mine","id":"4605943","name":"Mine No 1"},"validFrom":"1978-12-01","validTo":"1986-12-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4605943|C07409|1978-12-01|1986-12-31"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C07409","name":"Mc Daniel Vernon"},"object":{"type":"operator","id":"P09407","name":"Mc Daniel Mining Company Inc"},"validFrom":"1978-12-01","validTo":"1981-09-14","current":false,"derived":true,"evidenceMineId":"4605943","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4605943|P09407|1978-12-01|C07409|1978-12-01|74505"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P12701","name":"Bobcat Mining Inc"},"object":{"type":"mine","id":"4605943","name":"Mine No 1"},"validFrom":"1981-09-15","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4605943|P12701|1981-09-15|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C09366","name":"Mc Daniel Charles"},"object":{"type":"mine","id":"4605943","name":"Mine No 1"},"validFrom":"1981-09-15","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4605943|C09366|1981-09-15|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C09366","name":"Mc Daniel Charles"},"object":{"type":"operator","id":"P12701","name":"Bobcat Mining Inc"},"validFrom":"1981-09-15","validTo":null,"current":true,"derived":true,"evidenceMineId":"4605943","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4605943|P12701|1981-09-15|C09366|1981-09-15|79444"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4605943","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"}}