{"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":"1514194","name":"#1"},"operator":{"type":"operator","id":"P21540","name":"Big Man Coal Company Inc"},"controller":{"type":"controller","id":"C14435","name":"Elliott Layton"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C09000","name":"Sharp James Et Al"},"object":{"type":"mine","id":"1514194","name":"#1"},"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":"1514194|C09000|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P12136","name":"J & S Coal Company"},"object":{"type":"mine","id":"1514194","name":"#1"},"validFrom":"1983-08-01","validTo":"1985-07-16","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1514194|P12136|1983-08-01|1985-07-16"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C09000","name":"Sharp James Et Al"},"object":{"type":"operator","id":"P12136","name":"J & S Coal Company"},"validFrom":"1983-08-01","validTo":"1985-07-16","current":false,"derived":true,"evidenceMineId":"1514194","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1514194|P12136|1983-08-01|C09000|1950-01-01|78635"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P20997","name":"Dale Coal Company"},"object":{"type":"mine","id":"1514194","name":"#1"},"validFrom":"1985-07-17","validTo":"1991-04-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1514194|P20997|1985-07-17|1991-04-01"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C12004","name":"Taylor Mike"},"object":{"type":"mine","id":"1514194","name":"#1"},"validFrom":"1985-07-17","validTo":"1991-04-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1514194|C12004|1985-07-17|1991-04-01"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C12004","name":"Taylor Mike"},"object":{"type":"operator","id":"P20997","name":"Dale Coal Company"},"validFrom":"1985-07-17","validTo":"1991-04-01","current":false,"derived":true,"evidenceMineId":"1514194","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1514194|P20997|1985-07-17|C12004|1985-07-17|85878"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P21375","name":"W C Coal"},"object":{"type":"mine","id":"1514194","name":"#1"},"validFrom":"1991-04-02","validTo":"1991-08-05","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1514194|P21375|1991-04-02|1991-08-05"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14353","name":"King Franklin--Randall Perkins Et Al"},"object":{"type":"mine","id":"1514194","name":"#1"},"validFrom":"1991-04-02","validTo":"1991-08-05","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1514194|C14353|1991-04-02|1991-08-05"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14353","name":"King Franklin--Randall Perkins Et Al"},"object":{"type":"operator","id":"P21375","name":"W C Coal"},"validFrom":"1991-04-02","validTo":"1991-08-05","current":false,"derived":true,"evidenceMineId":"1514194","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1514194|P21375|1991-04-02|C14353|1991-04-02|92575"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P21539","name":"P & G Coal Inc"},"object":{"type":"mine","id":"1514194","name":"#1"},"validFrom":"1991-08-06","validTo":"1991-08-18","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1514194|P21539|1991-08-06|1991-08-18"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14434","name":"Gray Perry Jr"},"object":{"type":"mine","id":"1514194","name":"#1"},"validFrom":"1991-08-06","validTo":"1991-08-18","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1514194|C14434|1991-08-06|1991-08-18"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14434","name":"Gray Perry Jr"},"object":{"type":"operator","id":"P21539","name":"P & G Coal Inc"},"validFrom":"1991-08-06","validTo":"1991-08-18","current":false,"derived":true,"evidenceMineId":"1514194","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1514194|P21539|1991-08-06|C14434|1991-08-06|92810"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P21540","name":"Big Man Coal Company Inc"},"object":{"type":"mine","id":"1514194","name":"#1"},"validFrom":"1991-08-19","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1514194|P21540|1991-08-19|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14435","name":"Elliott Layton"},"object":{"type":"mine","id":"1514194","name":"#1"},"validFrom":"1991-08-19","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1514194|C14435|1991-08-19|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14435","name":"Elliott Layton"},"object":{"type":"operator","id":"P21540","name":"Big Man Coal Company Inc"},"validFrom":"1991-08-19","validTo":null,"current":true,"derived":true,"evidenceMineId":"1514194","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1514194|P21540|1991-08-19|C14435|1991-08-19|92811"}}],"coverage":{"historyRecords":5,"edgeCount":15,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1514194","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"}}