{"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":"4400693","name":"Dock #14"},"operator":{"type":"operator","id":"P24416","name":"Wellmore Coal Company, LLC"},"controller":{"type":"controller","id":"0085453","name":"Metinvest B V"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00375","name":"United  Company"},"object":{"type":"mine","id":"4400693","name":"Dock #14"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4400693|C00375|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P02993","name":"Crystal Coal Corp Inc"},"object":{"type":"mine","id":"4400693","name":"Dock #14"},"validFrom":"1950-01-01","validTo":"1977-08-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4400693|P02993|1950-01-01|1977-08-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02559","name":"Derek  Potter et al"},"object":{"type":"mine","id":"4400693","name":"Dock #14"},"validFrom":"1950-01-01","validTo":"1977-10-02","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4400693|C02559|1950-01-01|1977-10-02"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02559","name":"Derek  Potter et al"},"object":{"type":"operator","id":"P02993","name":"Crystal Coal Corp Inc"},"validFrom":"1950-01-01","validTo":"1977-08-31","current":false,"derived":true,"evidenceMineId":"4400693","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4400693|P02993|1950-01-01|C02559|1950-01-01|59986"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P00396","name":"Wellmore Coal Corp"},"object":{"type":"mine","id":"4400693","name":"Dock #14"},"validFrom":"1977-09-01","validTo":"2012-12-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4400693|P00396|1977-09-01|2012-12-30"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00375","name":"United  Company"},"object":{"type":"operator","id":"P00396","name":"Wellmore Coal Corp"},"validFrom":"1977-09-01","validTo":"2012-12-30","current":false,"derived":true,"evidenceMineId":"4400693","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4400693|P00396|1977-09-01|C00375|1950-01-01|46523"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C13160","name":"Southern Mining Co"},"object":{"type":"mine","id":"4400693","name":"Dock #14"},"validFrom":"2000-01-13","validTo":"2006-01-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4400693|C13160|2000-01-13|2006-01-01"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00375","name":"United  Company"},"object":{"type":"mine","id":"4400693","name":"Dock #14"},"validFrom":"2006-01-02","validTo":"2009-04-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4400693|C00375|2006-01-02|2009-04-29"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0085453","name":"Metinvest B V"},"object":{"type":"mine","id":"4400693","name":"Dock #14"},"validFrom":"2009-04-30","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4400693|0085453|2009-04-30|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P24416","name":"Wellmore Coal Company, LLC"},"object":{"type":"mine","id":"4400693","name":"Dock #14"},"validFrom":"2012-12-31","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4400693|P24416|2012-12-31|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0085453","name":"Metinvest B V"},"object":{"type":"operator","id":"P24416","name":"Wellmore Coal Company, LLC"},"validFrom":"2012-12-31","validTo":null,"current":true,"derived":true,"evidenceMineId":"4400693","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4400693|P24416|2012-12-31|0085453|2009-04-30|13494"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00375","name":"United  Company"},"object":{"type":"operator","id":"P24416","name":"Wellmore Coal Company, LLC"},"validFrom":"2012-12-31","validTo":"2009-04-29","current":false,"derived":true,"evidenceMineId":"4400693","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4400693|P24416|2012-12-31|C00375|2006-01-02|46685"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C13160","name":"Southern Mining Co"},"object":{"type":"operator","id":"P24416","name":"Wellmore Coal Company, LLC"},"validFrom":"2012-12-31","validTo":"2006-01-01","current":false,"derived":true,"evidenceMineId":"4400693","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4400693|P24416|2012-12-31|C13160|2000-01-13|88896"}}],"coverage":{"historyRecords":5,"edgeCount":13,"intervalAnomalies":2,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4400693","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"}}