{"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":"4608317","name":"Milburn No 1"},"operator":{"type":"operator","id":"P21056","name":"Mountain Minerals Inc"},"controller":{"type":"controller","id":"C13508","name":"Goodwin Barry K"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C13508","name":"Goodwin Barry K"},"object":{"type":"mine","id":"4608317","name":"Milburn No 1"},"validFrom":"1990-07-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608317|C13508|1990-07-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22435","name":"Man Power Inc"},"object":{"type":"mine","id":"4608317","name":"Milburn No 1"},"validFrom":"1993-06-01","validTo":"1993-12-12","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608317|P22435|1993-06-01|1993-12-12"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14893","name":"Thompson Randolph"},"object":{"type":"mine","id":"4608317","name":"Milburn No 1"},"validFrom":"1993-06-01","validTo":"1993-12-12","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608317|C14893|1993-06-01|1993-12-12"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14893","name":"Thompson Randolph"},"object":{"type":"operator","id":"P22435","name":"Man Power Inc"},"validFrom":"1993-06-01","validTo":"1993-12-12","current":false,"derived":true,"evidenceMineId":"4608317","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608317|P22435|1993-06-01|C14893|1993-06-01|94212"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P21056","name":"Mountain Minerals Inc"},"object":{"type":"mine","id":"4608317","name":"Milburn No 1"},"validFrom":"1993-12-13","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608317|P21056|1993-12-13|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C13508","name":"Goodwin Barry K"},"object":{"type":"operator","id":"P21056","name":"Mountain Minerals Inc"},"validFrom":"1993-12-13","validTo":null,"current":true,"derived":true,"evidenceMineId":"4608317","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608317|P21056|1993-12-13|C13508|1990-07-01|90174"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4608317","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"}}