{"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":"4406278","name":"Deep Mine #1"},"operator":{"type":"operator","id":"P18968","name":"Ritchie Equipment Inc"},"controller":{"type":"controller","id":"C01825","name":"Richard G  Preservati II"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C01825","name":"Richard G  Preservati II"},"object":{"type":"mine","id":"4406278","name":"Deep Mine #1"},"validFrom":"1986-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406278|C01825|1986-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P18968","name":"Ritchie Equipment Inc"},"object":{"type":"mine","id":"4406278","name":"Deep Mine #1"},"validFrom":"1986-10-01","validTo":"1987-12-27","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406278|P18968|1986-10-01|1987-12-27"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C01825","name":"Richard G  Preservati II"},"object":{"type":"operator","id":"P18968","name":"Ritchie Equipment Inc"},"validFrom":"1986-10-01","validTo":"1987-12-27","current":false,"derived":true,"evidenceMineId":"4406278","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406278|P18968|1986-10-01|C01825|1986-01-01|56266"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P19333","name":"Lotta Coal Inc"},"object":{"type":"mine","id":"4406278","name":"Deep Mine #1"},"validFrom":"1987-12-28","validTo":"1990-12-26","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406278|P19333|1987-12-28|1990-12-26"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C11873","name":"Caffrey John E"},"object":{"type":"mine","id":"4406278","name":"Deep Mine #1"},"validFrom":"1987-12-28","validTo":"1990-12-26","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406278|C11873|1987-12-28|1990-12-26"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C11873","name":"Caffrey John E"},"object":{"type":"operator","id":"P19333","name":"Lotta Coal Inc"},"validFrom":"1987-12-28","validTo":"1990-12-26","current":false,"derived":true,"evidenceMineId":"4406278","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406278|P19333|1987-12-28|C11873|1987-12-28|85600"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00122","name":"Charles H  Gent"},"object":{"type":"mine","id":"4406278","name":"Deep Mine #1"},"validFrom":"1988-03-18","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406278|C00122|1988-03-18|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C05343","name":"Hank K  Matney  et al"},"object":{"type":"mine","id":"4406278","name":"Deep Mine #1"},"validFrom":"1989-04-07","validTo":"1992-02-23","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406278|C05343|1989-04-07|1992-02-23"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P20118","name":"Top Flite Coal Corp"},"object":{"type":"mine","id":"4406278","name":"Deep Mine #1"},"validFrom":"1990-12-27","validTo":"1992-02-23","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406278|P20118|1990-12-27|1992-02-23"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C05343","name":"Hank K  Matney  et al"},"object":{"type":"operator","id":"P20118","name":"Top Flite Coal Corp"},"validFrom":"1990-12-27","validTo":"1992-02-23","current":false,"derived":true,"evidenceMineId":"4406278","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406278|P20118|1990-12-27|C05343|1989-04-07|68515"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P19516","name":"H B & B Equipment Company Inc"},"object":{"type":"mine","id":"4406278","name":"Deep Mine #1"},"validFrom":"1992-02-24","validTo":"1994-02-15","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406278|P19516|1992-02-24|1994-02-15"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00122","name":"Charles H  Gent"},"object":{"type":"operator","id":"P19516","name":"H B & B Equipment Company Inc"},"validFrom":"1992-02-24","validTo":"1994-02-15","current":false,"derived":true,"evidenceMineId":"4406278","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406278|P19516|1992-02-24|C00122|1988-03-18|44345"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22694","name":"Turnpike Coal Company Inc"},"object":{"type":"mine","id":"4406278","name":"Deep Mine #1"},"validFrom":"1994-02-16","validTo":"1995-03-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406278|P22694|1994-02-16|1995-03-29"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14407","name":"Everett E  Ballard Jr"},"object":{"type":"mine","id":"4406278","name":"Deep Mine #1"},"validFrom":"1994-02-16","validTo":"1995-03-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406278|C14407|1994-02-16|1995-03-29"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14407","name":"Everett E  Ballard Jr"},"object":{"type":"operator","id":"P22694","name":"Turnpike Coal Company Inc"},"validFrom":"1994-02-16","validTo":"1995-03-29","current":false,"derived":true,"evidenceMineId":"4406278","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406278|P22694|1994-02-16|C14407|1994-02-16|92719"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P18968","name":"Ritchie Equipment Inc"},"object":{"type":"mine","id":"4406278","name":"Deep Mine #1"},"validFrom":"1995-03-30","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406278|P18968|1995-03-30|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C01825","name":"Richard G  Preservati II"},"object":{"type":"operator","id":"P18968","name":"Ritchie Equipment Inc"},"validFrom":"1995-03-30","validTo":null,"current":true,"derived":true,"evidenceMineId":"4406278","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406278|P18968|1995-03-30|C01825|1986-01-01|56267"}}],"coverage":{"historyRecords":6,"edgeCount":17,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4406278","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"}}