{"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":"3601888","name":"No 1 Slope Mine"},"operator":{"type":"operator","id":"P12321","name":"Neumeister Coal Company"},"controller":{"type":"controller","id":"C09123","name":"Frank M  Neumeister"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P06648","name":"Klinger Coal Company"},"object":{"type":"mine","id":"3601888","name":"No 1 Slope Mine"},"validFrom":"1950-01-01","validTo":"1977-06-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3601888|P06648|1950-01-01|1977-06-29"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C05520","name":"Klinger Earl"},"object":{"type":"mine","id":"3601888","name":"No 1 Slope Mine"},"validFrom":"1950-01-01","validTo":"1977-06-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3601888|C05520|1950-01-01|1977-06-29"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C05520","name":"Klinger Earl"},"object":{"type":"operator","id":"P06648","name":"Klinger Coal Company"},"validFrom":"1950-01-01","validTo":"1977-06-29","current":false,"derived":true,"evidenceMineId":"3601888","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3601888|P06648|1950-01-01|C05520|1950-01-01|69008"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P06649","name":"Dembinsky Coal Company"},"object":{"type":"mine","id":"3601888","name":"No 1 Slope Mine"},"validFrom":"1977-06-30","validTo":"1981-08-10","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3601888|P06649|1977-06-30|1981-08-10"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C05521","name":"Dembinsky Nicholas & Frank Neumeister"},"object":{"type":"mine","id":"3601888","name":"No 1 Slope Mine"},"validFrom":"1977-06-30","validTo":"1981-08-10","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3601888|C05521|1977-06-30|1981-08-10"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C05521","name":"Dembinsky Nicholas & Frank Neumeister"},"object":{"type":"operator","id":"P06649","name":"Dembinsky Coal Company"},"validFrom":"1977-06-30","validTo":"1981-08-10","current":false,"derived":true,"evidenceMineId":"3601888","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3601888|P06649|1977-06-30|C05521|1977-06-30|69009"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C09123","name":"Frank M  Neumeister"},"object":{"type":"mine","id":"3601888","name":"No 1 Slope Mine"},"validFrom":"1981-07-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3601888|C09123|1981-07-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P12321","name":"Neumeister Coal Company"},"object":{"type":"mine","id":"3601888","name":"No 1 Slope Mine"},"validFrom":"1981-08-11","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3601888|P12321|1981-08-11|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C09123","name":"Frank M  Neumeister"},"object":{"type":"operator","id":"P12321","name":"Neumeister Coal Company"},"validFrom":"1981-08-11","validTo":null,"current":true,"derived":true,"evidenceMineId":"3601888","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3601888|P12321|1981-08-11|C09123|1981-07-01|78918"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3601888","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"}}