{"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":"4000073","name":"McMinnville Quarry"},"operator":{"type":"operator","id":"L06514","name":"Rogers Group Inc."},"controller":{"type":"controller","id":"M00452","name":"Rogers Group Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00002","name":"Koppers Company Inc"},"object":{"type":"mine","id":"4000073","name":"McMinnville Quarry"},"validFrom":"1950-01-01","validTo":"1988-11-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4000073|M00002|1950-01-01|1988-11-13"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00452","name":"Rogers Group Inc"},"object":{"type":"mine","id":"4000073","name":"McMinnville Quarry"},"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":"4000073|M00452|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L06239","name":"Mc Minnville Stone Company Inc"},"object":{"type":"mine","id":"4000073","name":"McMinnville Quarry"},"validFrom":"1950-01-01","validTo":"1983-04-05","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4000073|L06239|1950-01-01|1983-04-05"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M04975","name":"Rhea Elijah"},"object":{"type":"mine","id":"4000073","name":"McMinnville Quarry"},"validFrom":"1950-01-01","validTo":"1983-04-05","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4000073|M04975|1950-01-01|1983-04-05"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M04975","name":"Rhea Elijah"},"object":{"type":"operator","id":"L06239","name":"Mc Minnville Stone Company Inc"},"validFrom":"1950-01-01","validTo":"1983-04-05","current":false,"derived":true,"evidenceMineId":"4000073","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4000073|L06239|1950-01-01|M04975|1950-01-01|133403"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L03006","name":"Mid-South Stone Inc"},"object":{"type":"mine","id":"4000073","name":"McMinnville Quarry"},"validFrom":"1983-04-06","validTo":"1984-11-07","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4000073|L03006|1983-04-06|1984-11-07"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00452","name":"Rogers Group Inc"},"object":{"type":"operator","id":"L03006","name":"Mid-South Stone Inc"},"validFrom":"1983-04-06","validTo":"1984-11-07","current":false,"derived":true,"evidenceMineId":"4000073","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4000073|L03006|1983-04-06|M00452|1950-01-01|111172"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L01008","name":"Stone Man Inc"},"object":{"type":"mine","id":"4000073","name":"McMinnville Quarry"},"validFrom":"1984-11-08","validTo":"1988-11-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4000073|L01008|1984-11-08|1988-11-13"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00002","name":"Koppers Company Inc"},"object":{"type":"operator","id":"L01008","name":"Stone Man Inc"},"validFrom":"1984-11-08","validTo":"1988-11-13","current":false,"derived":true,"evidenceMineId":"4000073","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4000073|L01008|1984-11-08|M00002|1950-01-01|100320"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L16393","name":"Hanson Aggregates Stone Man Inc"},"object":{"type":"mine","id":"4000073","name":"McMinnville Quarry"},"validFrom":"1988-11-14","validTo":"2000-12-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4000073|L16393|1988-11-14|2000-12-03"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00521","name":"Hanson PLC"},"object":{"type":"mine","id":"4000073","name":"McMinnville Quarry"},"validFrom":"1988-11-14","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4000073|M00521|1988-11-14|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00521","name":"Hanson PLC"},"object":{"type":"operator","id":"L16393","name":"Hanson Aggregates Stone Man Inc"},"validFrom":"1988-11-14","validTo":"2000-12-03","current":false,"derived":true,"evidenceMineId":"4000073","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4000073|L16393|1988-11-14|M00521|1988-11-14|112520"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L06514","name":"Rogers Group Inc."},"object":{"type":"mine","id":"4000073","name":"McMinnville Quarry"},"validFrom":"2000-12-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4000073|L06514|2000-12-04|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00452","name":"Rogers Group Inc"},"object":{"type":"operator","id":"L06514","name":"Rogers Group Inc."},"validFrom":"2000-12-04","validTo":null,"current":true,"derived":true,"evidenceMineId":"4000073","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4000073|L06514|2000-12-04|M00452|1950-01-01|111173"}}],"coverage":{"historyRecords":5,"edgeCount":14,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4000073","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"}}