{"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":"1506214","name":"Jakes Fork Tipple"},"operator":{"type":"operator","id":"P14649","name":"Buckhorn Processing"},"controller":{"type":"controller","id":"C06148","name":"Cyprus Amax Minerals Company"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P01398","name":"Starfire Coal Company Inc"},"object":{"type":"mine","id":"1506214","name":"Jakes Fork Tipple"},"validFrom":"1950-01-01","validTo":"1975-01-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1506214|P01398|1950-01-01|1975-01-01"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C01187","name":"Sharpe Edward L"},"object":{"type":"mine","id":"1506214","name":"Jakes Fork Tipple"},"validFrom":"1950-01-01","validTo":"1975-01-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1506214|C01187|1950-01-01|1975-01-01"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C01187","name":"Sharpe Edward L"},"object":{"type":"operator","id":"P01398","name":"Starfire Coal Company Inc"},"validFrom":"1950-01-01","validTo":"1975-01-01","current":false,"derived":true,"evidenceMineId":"1506214","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1506214|P01398|1950-01-01|C01187|1950-01-01|52771"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P06864","name":"Starfire Coal Company Inc"},"object":{"type":"mine","id":"1506214","name":"Jakes Fork Tipple"},"validFrom":"1975-01-02","validTo":"1978-01-10","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1506214|P06864|1975-01-02|1978-01-10"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C01385","name":"Arnold B G"},"object":{"type":"mine","id":"1506214","name":"Jakes Fork Tipple"},"validFrom":"1975-01-02","validTo":"1978-01-10","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1506214|C01385|1975-01-02|1978-01-10"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C01385","name":"Arnold B G"},"object":{"type":"operator","id":"P06864","name":"Starfire Coal Company Inc"},"validFrom":"1975-01-02","validTo":"1978-01-10","current":false,"derived":true,"evidenceMineId":"1506214","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1506214|P06864|1975-01-02|C01385|1975-01-02|53854"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P07552","name":"Jakes Fork Coal Company"},"object":{"type":"mine","id":"1506214","name":"Jakes Fork Tipple"},"validFrom":"1978-01-11","validTo":"1982-02-17","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1506214|P07552|1978-01-11|1982-02-17"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02776","name":"Harbert Construction Corp"},"object":{"type":"mine","id":"1506214","name":"Jakes Fork Tipple"},"validFrom":"1978-01-11","validTo":"1982-02-17","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1506214|C02776|1978-01-11|1982-02-17"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02776","name":"Harbert Construction Corp"},"object":{"type":"operator","id":"P07552","name":"Jakes Fork Coal Company"},"validFrom":"1978-01-11","validTo":"1982-02-17","current":false,"derived":true,"evidenceMineId":"1506214","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1506214|P07552|1978-01-11|C02776|1978-01-11|60736"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C06148","name":"Cyprus Amax Minerals Company"},"object":{"type":"mine","id":"1506214","name":"Jakes Fork Tipple"},"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":"1506214|C06148|1981-09-15|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P14649","name":"Buckhorn Processing"},"object":{"type":"mine","id":"1506214","name":"Jakes Fork Tipple"},"validFrom":"1982-02-18","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1506214|P14649|1982-02-18|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C06148","name":"Cyprus Amax Minerals Company"},"object":{"type":"operator","id":"P14649","name":"Buckhorn Processing"},"validFrom":"1982-02-18","validTo":null,"current":true,"derived":true,"evidenceMineId":"1506214","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1506214|P14649|1982-02-18|C06148|1981-09-15|70961"}}],"coverage":{"historyRecords":4,"edgeCount":12,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1506214","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"}}