{"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":"5400165","name":"Cantera Rivera"},"operator":{"type":"operator","id":"L17065","name":"Hiram Rivera Inc"},"controller":{"type":"controller","id":"M09656","name":"Luis A  Reyes-Leon"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L02633","name":"Conrado Forestier Jr"},"object":{"type":"mine","id":"5400165","name":"Cantera Rivera"},"validFrom":"1950-01-01","validTo":"1979-05-24","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"5400165|L02633|1950-01-01|1979-05-24"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M02940","name":"Conrado  Forestier Jr"},"object":{"type":"mine","id":"5400165","name":"Cantera Rivera"},"validFrom":"1950-01-01","validTo":"1979-05-24","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"5400165|M02940|1950-01-01|1979-05-24"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M02940","name":"Conrado  Forestier Jr"},"object":{"type":"operator","id":"L02633","name":"Conrado Forestier Jr"},"validFrom":"1950-01-01","validTo":"1979-05-24","current":false,"derived":true,"evidenceMineId":"5400165","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"5400165|L02633|1950-01-01|M02940|1950-01-01|127393"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L02960","name":"Hiram Rivera Inc"},"object":{"type":"mine","id":"5400165","name":"Cantera Rivera"},"validFrom":"1979-05-25","validTo":"1999-11-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"5400165|L02960|1979-05-25|1999-11-30"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M02439","name":"Hiram  Rivera"},"object":{"type":"mine","id":"5400165","name":"Cantera Rivera"},"validFrom":"1979-05-25","validTo":"1999-11-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"5400165|M02439|1979-05-25|1999-11-30"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M02439","name":"Hiram  Rivera"},"object":{"type":"operator","id":"L02960","name":"Hiram Rivera Inc"},"validFrom":"1979-05-25","validTo":"1999-11-30","current":false,"derived":true,"evidenceMineId":"5400165","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"5400165|L02960|1979-05-25|M02439|1979-05-25|125452"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L17065","name":"Hiram Rivera Inc"},"object":{"type":"mine","id":"5400165","name":"Cantera Rivera"},"validFrom":"1999-12-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"5400165|L17065|1999-12-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M09656","name":"Luis A  Reyes-Leon"},"object":{"type":"mine","id":"5400165","name":"Cantera Rivera"},"validFrom":"1999-12-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"5400165|M09656|1999-12-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M09656","name":"Luis A  Reyes-Leon"},"object":{"type":"operator","id":"L17065","name":"Hiram Rivera Inc"},"validFrom":"1999-12-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"5400165","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"5400165|L17065|1999-12-01|M09656|1999-12-01|146885"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"5400165","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"}}