{"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":"2103579","name":"Portable Crusher/Screen Monson Pit"},"operator":{"type":"operator","id":"0096446","name":"Monson Corporation"},"controller":{"type":"controller","id":"0053431","name":"Chad  Monson"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"0053431","name":"Chad  Monson"},"object":{"type":"mine","id":"2103579","name":"Portable Crusher/Screen Monson Pit"},"validFrom":"2005-09-12","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2103579|0053431|2005-09-12|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0063865","name":"Chad Monson Excavating LLC"},"object":{"type":"mine","id":"2103579","name":"Portable Crusher/Screen Monson Pit"},"validFrom":"2007-05-08","validTo":"2008-06-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2103579|0063865|2007-05-08|2008-06-30"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0053431","name":"Chad  Monson"},"object":{"type":"operator","id":"0063865","name":"Chad Monson Excavating LLC"},"validFrom":"2007-05-08","validTo":"2008-06-30","current":false,"derived":true,"evidenceMineId":"2103579","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2103579|0063865|2007-05-08|0053431|2005-09-12|6819"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0096446","name":"Monson Corporation"},"object":{"type":"mine","id":"2103579","name":"Portable Crusher/Screen Monson Pit"},"validFrom":"2008-07-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2103579|0096446|2008-07-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0053431","name":"Chad  Monson"},"object":{"type":"mine","id":"2103579","name":"Portable Crusher/Screen Monson Pit"},"validFrom":"2008-07-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2103579|0053431|2008-07-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0053431","name":"Chad  Monson"},"object":{"type":"operator","id":"0096446","name":"Monson Corporation"},"validFrom":"2008-07-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"2103579","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2103579|0096446|2008-07-01|0053431|2008-07-01|6821"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"2103579","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"}}