{"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":"1401040","name":"Geary County Sand Plant"},"operator":{"type":"operator","id":"L01472","name":"Midwest Concrete Materials, Inc."},"controller":{"type":"controller","id":"0194821","name":"Christopher J  Eichman"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00817","name":"More Sand Company Inc"},"object":{"type":"mine","id":"1401040","name":"Geary County Sand Plant"},"validFrom":"1950-01-01","validTo":"1989-04-18","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1401040|L00817|1950-01-01|1989-04-18"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00679","name":"Bob  More"},"object":{"type":"mine","id":"1401040","name":"Geary County Sand Plant"},"validFrom":"1950-01-01","validTo":"1989-04-18","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1401040|M00679|1950-01-01|1989-04-18"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00679","name":"Bob  More"},"object":{"type":"operator","id":"L00817","name":"More Sand Company Inc"},"validFrom":"1950-01-01","validTo":"1989-04-18","current":false,"derived":true,"evidenceMineId":"1401040","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1401040|L00817|1950-01-01|M00679|1950-01-01|114091"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M01317","name":"Robert H  Eichman"},"object":{"type":"mine","id":"1401040","name":"Geary County Sand Plant"},"validFrom":"1950-01-01","validTo":"2025-01-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1401040|M01317|1950-01-01|2025-01-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M08359","name":"Roy G  More"},"object":{"type":"mine","id":"1401040","name":"Geary County Sand Plant"},"validFrom":"1987-05-01","validTo":"1991-04-15","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1401040|M08359|1987-05-01|1991-04-15"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L10781","name":"More Sand Company Inc"},"object":{"type":"mine","id":"1401040","name":"Geary County Sand Plant"},"validFrom":"1989-04-19","validTo":"1991-04-15","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1401040|L10781|1989-04-19|1991-04-15"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M08359","name":"Roy G  More"},"object":{"type":"operator","id":"L10781","name":"More Sand Company Inc"},"validFrom":"1989-04-19","validTo":"1991-04-15","current":false,"derived":true,"evidenceMineId":"1401040","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1401040|L10781|1989-04-19|M08359|1987-05-01|143233"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L12116","name":"Konza Construction Company Inc"},"object":{"type":"mine","id":"1401040","name":"Geary County Sand Plant"},"validFrom":"1991-04-16","validTo":"2013-12-19","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1401040|L12116|1991-04-16|2013-12-19"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M09317","name":"John B  Musser II et al"},"object":{"type":"mine","id":"1401040","name":"Geary County Sand Plant"},"validFrom":"1991-04-16","validTo":"2013-01-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1401040|M09317|1991-04-16|2013-01-09"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M09317","name":"John B  Musser II et al"},"object":{"type":"operator","id":"L12116","name":"Konza Construction Company Inc"},"validFrom":"1991-04-16","validTo":"2013-01-09","current":false,"derived":true,"evidenceMineId":"1401040","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1401040|L12116|1991-04-16|M09317|1991-04-16|146135"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0107947","name":"Doug W.  Hutchinson"},"object":{"type":"mine","id":"1401040","name":"Geary County Sand Plant"},"validFrom":"2013-01-10","validTo":"2013-03-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1401040|0107947|2013-01-10|2013-03-14"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0107947","name":"Doug W.  Hutchinson"},"object":{"type":"operator","id":"L12116","name":"Konza Construction Company Inc"},"validFrom":"2013-01-10","validTo":"2013-03-14","current":false,"derived":true,"evidenceMineId":"1401040","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1401040|L12116|1991-04-16|0107947|2013-01-10|19412"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M09317","name":"John B  Musser II et al"},"object":{"type":"mine","id":"1401040","name":"Geary County Sand Plant"},"validFrom":"2013-03-15","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1401040|M09317|2013-03-15|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M09317","name":"John B  Musser II et al"},"object":{"type":"operator","id":"L12116","name":"Konza Construction Company Inc"},"validFrom":"2013-03-15","validTo":"2013-12-19","current":false,"derived":true,"evidenceMineId":"1401040","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1401040|L12116|1991-04-16|M09317|2013-03-15|146139"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L01472","name":"Midwest Concrete Materials, Inc."},"object":{"type":"mine","id":"1401040","name":"Geary County Sand Plant"},"validFrom":"2013-12-20","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1401040|L01472|2013-12-20|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M01317","name":"Robert H  Eichman"},"object":{"type":"operator","id":"L01472","name":"Midwest Concrete Materials, Inc."},"validFrom":"2013-12-20","validTo":"2025-01-31","current":false,"derived":true,"evidenceMineId":"1401040","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1401040|L01472|2013-12-20|M01317|1950-01-01|117968"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0194821","name":"Christopher J  Eichman"},"object":{"type":"mine","id":"1401040","name":"Geary County Sand Plant"},"validFrom":"2025-02-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1401040|0194821|2025-02-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0194821","name":"Christopher J  Eichman"},"object":{"type":"operator","id":"L01472","name":"Midwest Concrete Materials, Inc."},"validFrom":"2025-02-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"1401040","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1401040|L01472|2013-12-20|0194821|2025-02-01|41633"}}],"coverage":{"historyRecords":7,"edgeCount":18,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1401040","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"}}