{"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":"1516987","name":"Mine No 1"},"operator":{"type":"operator","id":"P21314","name":"Capital Mining Inc"},"controller":{"type":"controller","id":"C12976","name":"Hood Carl E"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00706","name":"Theodore  Yates et al"},"object":{"type":"mine","id":"1516987","name":"Mine No 1"},"validFrom":"1989-02-21","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516987|C00706|1989-02-21|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P20052","name":"Har-Lee Coal Company Inc"},"object":{"type":"mine","id":"1516987","name":"Mine No 1"},"validFrom":"1990-10-01","validTo":"1991-01-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516987|P20052|1990-10-01|1991-01-30"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00706","name":"Theodore  Yates et al"},"object":{"type":"operator","id":"P20052","name":"Har-Lee Coal Company Inc"},"validFrom":"1990-10-01","validTo":"1991-01-30","current":false,"derived":true,"evidenceMineId":"1516987","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516987|P20052|1990-10-01|C00706|1989-02-21|49493"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P21314","name":"Capital Mining Inc"},"object":{"type":"mine","id":"1516987","name":"Mine No 1"},"validFrom":"1991-01-31","validTo":"1991-10-17","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516987|P21314|1991-01-31|1991-10-17"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C12976","name":"Hood Carl E"},"object":{"type":"mine","id":"1516987","name":"Mine No 1"},"validFrom":"1991-01-31","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516987|C12976|1991-01-31|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C12976","name":"Hood Carl E"},"object":{"type":"operator","id":"P21314","name":"Capital Mining Inc"},"validFrom":"1991-01-31","validTo":"1991-10-17","current":false,"derived":true,"evidenceMineId":"1516987","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516987|P21314|1991-01-31|C12976|1991-01-31|88283"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P21617","name":"Dbl Inc"},"object":{"type":"mine","id":"1516987","name":"Mine No 1"},"validFrom":"1991-10-18","validTo":"1991-11-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516987|P21617|1991-10-18|1991-11-28"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14471","name":"Hogg Don"},"object":{"type":"mine","id":"1516987","name":"Mine No 1"},"validFrom":"1991-10-18","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516987|C14471|1991-10-18|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14471","name":"Hogg Don"},"object":{"type":"operator","id":"P21617","name":"Dbl Inc"},"validFrom":"1991-10-18","validTo":"1991-11-28","current":false,"derived":true,"evidenceMineId":"1516987","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516987|P21617|1991-10-18|C14471|1991-10-18|92981"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P21314","name":"Capital Mining Inc"},"object":{"type":"mine","id":"1516987","name":"Mine No 1"},"validFrom":"1991-11-29","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516987|P21314|1991-11-29|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C12976","name":"Hood Carl E"},"object":{"type":"operator","id":"P21314","name":"Capital Mining Inc"},"validFrom":"1991-11-29","validTo":null,"current":true,"derived":true,"evidenceMineId":"1516987","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516987|P21314|1991-11-29|C12976|1991-01-31|88284"}}],"coverage":{"historyRecords":4,"edgeCount":11,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1516987","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"}}