{"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":"5400410","name":"TOSQUERO ROMON"},"operator":{"type":"operator","id":"L36587","name":"N R S Universal Contractors Of Pr Inc"},"controller":{"type":"controller","id":"M36587","name":"Sigfredo  Velez"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M36587","name":"Sigfredo  Velez"},"object":{"type":"mine","id":"5400410","name":"TOSQUERO ROMON"},"validFrom":"1986-03-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"5400410|M36587|1986-03-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L15853","name":"A Hernandez & Asociados"},"object":{"type":"mine","id":"5400410","name":"TOSQUERO ROMON"},"validFrom":"1998-03-01","validTo":"1999-03-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"5400410|L15853|1998-03-01|1999-03-01"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M12086","name":"Augusto  Hernandez"},"object":{"type":"mine","id":"5400410","name":"TOSQUERO ROMON"},"validFrom":"1998-03-01","validTo":"1999-03-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"5400410|M12086|1998-03-01|1999-03-01"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M12086","name":"Augusto  Hernandez"},"object":{"type":"operator","id":"L15853","name":"A Hernandez & Asociados"},"validFrom":"1998-03-01","validTo":"1999-03-01","current":false,"derived":true,"evidenceMineId":"5400410","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"5400410|L15853|1998-03-01|M12086|1998-03-01|153079"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L36587","name":"N R S Universal Contractors Of Pr Inc"},"object":{"type":"mine","id":"5400410","name":"TOSQUERO ROMON"},"validFrom":"1999-03-02","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"5400410|L36587|1999-03-02|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M36587","name":"Sigfredo  Velez"},"object":{"type":"operator","id":"L36587","name":"N R S Universal Contractors Of Pr Inc"},"validFrom":"1999-03-02","validTo":null,"current":true,"derived":true,"evidenceMineId":"5400410","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"5400410|L36587|1999-03-02|M36587|1986-03-01|165722"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"5400410","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"}}