{"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":"3609231","name":"Zerbe 10 Mine"},"operator":{"type":"operator","id":"0075805","name":"Fox Coal Company Inc."},"controller":{"type":"controller","id":"C11598","name":"Vincent  Guarna; Michael  Guarna"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C09332","name":"Joseph  Kleeman  et al"},"object":{"type":"mine","id":"3609231","name":"Zerbe 10 Mine"},"validFrom":"1996-02-01","validTo":"2013-09-16","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609231|C09332|1996-02-01|2013-09-16"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P23392","name":"Mid-Valley Coal Sales Inc."},"object":{"type":"mine","id":"3609231","name":"Zerbe 10 Mine"},"validFrom":"2004-04-25","validTo":"2007-11-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609231|P23392|2004-04-25|2007-11-14"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C09332","name":"Joseph  Kleeman  et al"},"object":{"type":"operator","id":"P23392","name":"Mid-Valley Coal Sales Inc."},"validFrom":"2004-04-25","validTo":"2007-11-14","current":false,"derived":true,"evidenceMineId":"3609231","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609231|P23392|2004-04-25|C09332|1996-02-01|79385"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C11598","name":"Michael  Guarna et al"},"object":{"type":"mine","id":"3609231","name":"Zerbe 10 Mine"},"validFrom":"2006-10-16","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609231|C11598|2006-10-16|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0075805","name":"Fox Coal Company Inc."},"object":{"type":"mine","id":"3609231","name":"Zerbe 10 Mine"},"validFrom":"2007-11-15","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609231|0075805|2007-11-15|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C11598","name":"Michael  Guarna et al"},"object":{"type":"operator","id":"0075805","name":"Fox Coal Company Inc."},"validFrom":"2007-11-15","validTo":null,"current":true,"derived":true,"evidenceMineId":"3609231","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609231|0075805|2007-11-15|C11598|2006-10-16|84957"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C11598","name":"Vincent  Guarna et al"},"object":{"type":"operator","id":"0075805","name":"Fox Coal Company Inc."},"validFrom":"2007-11-15","validTo":null,"current":true,"derived":true,"evidenceMineId":"3609231","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609231|0075805|2007-11-15|C11598|2006-10-16|84958"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C11598","name":"Vincent  Guarna et al"},"object":{"type":"mine","id":"3609231","name":"Zerbe 10 Mine"},"validFrom":"2013-09-17","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609231|C11598|2013-09-17|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C11598","name":"Vincent  Guarna et al"},"object":{"type":"operator","id":"P23392","name":"Mid-Valley Coal Sales Inc."},"validFrom":"2013-09-17","validTo":"2007-11-14","current":false,"derived":true,"evidenceMineId":"3609231","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609231|P23392|2004-04-25|C11598|2013-09-17|84975"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C11598","name":"Michael  Guarna et al"},"object":{"type":"operator","id":"P23392","name":"Mid-Valley Coal Sales Inc."},"validFrom":"2013-09-17","validTo":"2007-11-14","current":false,"derived":true,"evidenceMineId":"3609231","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609231|P23392|2004-04-25|C11598|2013-09-17|84976"}}],"coverage":{"historyRecords":5,"edgeCount":10,"intervalAnomalies":2,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3609231","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"}}