{"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":"3401618","name":"Phoenix Mine"},"operator":{"type":"operator","id":"P22661","name":"Phoenix Mining Company"},"controller":{"type":"controller","id":"C15324","name":"Robert I  Hartley; James  Brakefield"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C03572","name":"Frank W  Podpechan"},"object":{"type":"mine","id":"3401618","name":"Phoenix Mine"},"validFrom":"1977-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3401618|C03572|1977-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P16659","name":"Hickory Coal Corp"},"object":{"type":"mine","id":"3401618","name":"Phoenix Mine"},"validFrom":"1987-06-01","validTo":"1993-11-21","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3401618|P16659|1987-06-01|1993-11-21"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C03572","name":"Frank W  Podpechan"},"object":{"type":"operator","id":"P16659","name":"Hickory Coal Corp"},"validFrom":"1987-06-01","validTo":"1993-11-21","current":false,"derived":true,"evidenceMineId":"3401618","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3401618|P16659|1987-06-01|C03572|1977-01-01|63263"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22661","name":"Phoenix Mining Company"},"object":{"type":"mine","id":"3401618","name":"Phoenix Mine"},"validFrom":"1993-11-22","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3401618|P22661|1993-11-22|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C15324","name":"Robert I  Hartley et al"},"object":{"type":"mine","id":"3401618","name":"Phoenix Mine"},"validFrom":"1993-11-22","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3401618|C15324|1993-11-22|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15324","name":"Robert I  Hartley et al"},"object":{"type":"operator","id":"P22661","name":"Phoenix Mining Company"},"validFrom":"1993-11-22","validTo":null,"current":true,"derived":true,"evidenceMineId":"3401618","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3401618|P22661|1993-11-22|C15324|1993-11-22|95280"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15324","name":"James  Brakefield et al"},"object":{"type":"operator","id":"P22661","name":"Phoenix Mining Company"},"validFrom":"1993-11-22","validTo":null,"current":true,"derived":true,"evidenceMineId":"3401618","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3401618|P22661|1993-11-22|C15324|1993-11-22|95281"}}],"coverage":{"historyRecords":3,"edgeCount":7,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3401618","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"}}