{"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":"4801558","name":"Garber Pit Portable #1"},"operator":{"type":"operator","id":"L16457","name":"Garber Agri-Business Inc"},"controller":{"type":"controller","id":"0145521","name":"Paul W  Garber"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L16457","name":"Garber Agri-Business Inc"},"object":{"type":"mine","id":"4801558","name":"Garber Pit Portable #1"},"validFrom":"1999-04-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801558|L16457|1999-04-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M12590","name":"Victor  Garber  et al"},"object":{"type":"mine","id":"4801558","name":"Garber Pit Portable #1"},"validFrom":"1999-04-01","validTo":"2019-01-17","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801558|M12590|1999-04-01|2019-01-17"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M12590","name":"Victor  Garber  et al"},"object":{"type":"operator","id":"L16457","name":"Garber Agri-Business Inc"},"validFrom":"1999-04-01","validTo":"2019-01-17","current":false,"derived":true,"evidenceMineId":"4801558","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801558|L16457|1999-04-01|M12590|1999-04-01|154087"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0145521","name":"Paul W  Garber"},"object":{"type":"mine","id":"4801558","name":"Garber Pit Portable #1"},"validFrom":"2019-01-18","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801558|0145521|2019-01-18|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0145521","name":"Paul W  Garber"},"object":{"type":"operator","id":"L16457","name":"Garber Agri-Business Inc"},"validFrom":"2019-01-18","validTo":null,"current":true,"derived":true,"evidenceMineId":"4801558","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801558|L16457|1999-04-01|0145521|2019-01-18|29821"}}],"coverage":{"historyRecords":2,"edgeCount":5,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4801558","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"}}