{"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":"2026-10-17T05:35:58.500035+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":"4502212","name":"Cedar Mountain Pit"},"operator":{"type":"operator","id":"L07989","name":"Rivera & Green Inc"},"controller":{"type":"controller","id":"M06351","name":"Jose A  Rivera Jr"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L06536","name":"Boulevard Excavating Inc"},"object":{"type":"mine","id":"4502212","name":"Cedar Mountain Pit"},"validFrom":"1950-01-01","validTo":"1983-03-16","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4502212|L06536|1950-01-01|1983-03-16"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M05201","name":"Hansen Bruce"},"object":{"type":"mine","id":"4502212","name":"Cedar Mountain Pit"},"validFrom":"1950-01-01","validTo":"1983-03-16","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4502212|M05201|1950-01-01|1983-03-16"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M05201","name":"Hansen Bruce"},"object":{"type":"operator","id":"L06536","name":"Boulevard Excavating Inc"},"validFrom":"1950-01-01","validTo":"1983-03-16","current":false,"derived":true,"evidenceMineId":"4502212","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4502212|L06536|1950-01-01|M05201|1950-01-01|133959"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M05202","name":"Reid Robert G & James R"},"object":{"type":"mine","id":"4502212","name":"Cedar Mountain Pit"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4502212|M05202|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L06537","name":"Reid Sand & Gravel Inc"},"object":{"type":"mine","id":"4502212","name":"Cedar Mountain Pit"},"validFrom":"1983-03-17","validTo":"1985-07-21","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4502212|L06537|1983-03-17|1985-07-21"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M05202","name":"Reid Robert G & James R"},"object":{"type":"operator","id":"L06537","name":"Reid Sand & Gravel Inc"},"validFrom":"1983-03-17","validTo":"1985-07-21","current":false,"derived":true,"evidenceMineId":"4502212","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4502212|L06537|1983-03-17|M05202|1950-01-01|133961"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L07989","name":"Rivera & Green Inc"},"object":{"type":"mine","id":"4502212","name":"Cedar Mountain Pit"},"validFrom":"1985-07-22","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4502212|L07989|1985-07-22|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06351","name":"Jose A  Rivera Jr"},"object":{"type":"mine","id":"4502212","name":"Cedar Mountain Pit"},"validFrom":"1985-07-22","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4502212|M06351|1985-07-22|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06351","name":"Jose A  Rivera Jr"},"object":{"type":"operator","id":"L07989","name":"Rivera & Green Inc"},"validFrom":"1985-07-22","validTo":null,"current":true,"derived":true,"evidenceMineId":"4502212","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4502212|L07989|1985-07-22|M06351|1985-07-22|138343"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4502212","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}