{"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":"1514795","name":"No 1"},"operator":{"type":"operator","id":"P17859","name":"Emmanuel Coal Company Inc"},"controller":{"type":"controller","id":"C12510","name":"Burke John Jr"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C05738","name":"Jackson Harold"},"object":{"type":"mine","id":"1514795","name":"No 1"},"validFrom":"1984-01-04","validTo":"1986-06-02","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1514795|C05738|1984-01-04|1986-06-02"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P15001","name":"Pyramid Mining Inc"},"object":{"type":"mine","id":"1514795","name":"No 1"},"validFrom":"1984-08-01","validTo":"1986-06-02","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1514795|P15001|1984-08-01|1986-06-02"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C05738","name":"Jackson Harold"},"object":{"type":"operator","id":"P15001","name":"Pyramid Mining Inc"},"validFrom":"1984-08-01","validTo":"1986-06-02","current":false,"derived":true,"evidenceMineId":"1514795","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1514795|P15001|1984-08-01|C05738|1984-01-04|69741"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P17859","name":"Emmanuel Coal Company Inc"},"object":{"type":"mine","id":"1514795","name":"No 1"},"validFrom":"1986-06-03","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1514795|P17859|1986-06-03|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C12510","name":"Burke John Jr"},"object":{"type":"mine","id":"1514795","name":"No 1"},"validFrom":"1986-06-03","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1514795|C12510|1986-06-03|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C12510","name":"Burke John Jr"},"object":{"type":"operator","id":"P17859","name":"Emmanuel Coal Company Inc"},"validFrom":"1986-06-03","validTo":null,"current":true,"derived":true,"evidenceMineId":"1514795","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1514795|P17859|1986-06-03|C12510|1986-06-03|87277"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1514795","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"}}