{"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":"4607120","name":"Spring Hollow #1 Mine"},"operator":{"type":"operator","id":"P19965","name":"Spring Hollow Mining Inc"},"controller":{"type":"controller","id":"C13642","name":"Salyers Herman"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P17879","name":"Iron Eagle Coal Corp"},"object":{"type":"mine","id":"4607120","name":"Spring Hollow #1 Mine"},"validFrom":"1986-05-01","validTo":"1987-04-02","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607120|P17879|1986-05-01|1987-04-02"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C12523","name":"Jeter R Ben"},"object":{"type":"mine","id":"4607120","name":"Spring Hollow #1 Mine"},"validFrom":"1986-05-01","validTo":"1987-04-02","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607120|C12523|1986-05-01|1987-04-02"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C12523","name":"Jeter R Ben"},"object":{"type":"operator","id":"P17879","name":"Iron Eagle Coal Corp"},"validFrom":"1986-05-01","validTo":"1987-04-02","current":false,"derived":true,"evidenceMineId":"4607120","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607120|P17879|1986-05-01|C12523|1986-05-01|87301"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P18507","name":"Spring Hollow Mining Inc"},"object":{"type":"mine","id":"4607120","name":"Spring Hollow #1 Mine"},"validFrom":"1987-04-03","validTo":"1989-01-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607120|P18507|1987-04-03|1989-01-01"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C09028","name":"Salyers Don"},"object":{"type":"mine","id":"4607120","name":"Spring Hollow #1 Mine"},"validFrom":"1987-04-03","validTo":"1989-01-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607120|C09028|1987-04-03|1989-01-01"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C09028","name":"Salyers Don"},"object":{"type":"operator","id":"P18507","name":"Spring Hollow Mining Inc"},"validFrom":"1987-04-03","validTo":"1989-01-01","current":false,"derived":true,"evidenceMineId":"4607120","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607120|P18507|1987-04-03|C09028|1987-04-03|78742"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P19965","name":"Spring Hollow Mining Inc"},"object":{"type":"mine","id":"4607120","name":"Spring Hollow #1 Mine"},"validFrom":"1989-01-02","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607120|P19965|1989-01-02|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C13642","name":"Salyers Herman"},"object":{"type":"mine","id":"4607120","name":"Spring Hollow #1 Mine"},"validFrom":"1989-01-02","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607120|C13642|1989-01-02|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C13642","name":"Salyers Herman"},"object":{"type":"operator","id":"P19965","name":"Spring Hollow Mining Inc"},"validFrom":"1989-01-02","validTo":null,"current":true,"derived":true,"evidenceMineId":"4607120","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607120|P19965|1989-01-02|C13642|1989-01-02|90681"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4607120","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"}}