{"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":"4105801","name":"SOUTH LIBERTY PLANT"},"operator":{"type":"operator","id":"0162133","name":"BLUEBONNET MATERIALS LLC"},"controller":{"type":"controller","id":"0190061","name":"Scott  Spinella"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"0146281","name":"John G  Kissane et al"},"object":{"type":"mine","id":"4105801","name":"SOUTH LIBERTY PLANT"},"validFrom":"2019-03-06","validTo":"2025-01-26","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4105801|0146281|2019-03-06|2025-01-26"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0190061","name":"Scott  Spinella"},"object":{"type":"mine","id":"4105801","name":"SOUTH LIBERTY PLANT"},"validFrom":"2025-01-27","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4105801|0190061|2025-01-27|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0162133","name":"BLUEBONNET MATERIALS LLC"},"object":{"type":"mine","id":"4105801","name":"SOUTH LIBERTY PLANT"},"validFrom":"2025-05-20","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4105801|0162133|2025-05-20|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0146281","name":"John G  Kissane et al"},"object":{"type":"operator","id":"0162133","name":"BLUEBONNET MATERIALS LLC"},"validFrom":"2025-05-20","validTo":"2025-01-26","current":false,"derived":true,"evidenceMineId":"4105801","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4105801|0162133|2025-05-20|0146281|2019-03-06|29952"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0146281","name":"Scott  Spinella et al"},"object":{"type":"operator","id":"0162133","name":"BLUEBONNET MATERIALS LLC"},"validFrom":"2025-05-20","validTo":"2025-01-26","current":false,"derived":true,"evidenceMineId":"4105801","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4105801|0162133|2025-05-20|0146281|2019-03-06|29953"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0190061","name":"Scott  Spinella"},"object":{"type":"operator","id":"0162133","name":"BLUEBONNET MATERIALS LLC"},"validFrom":"2025-05-20","validTo":null,"current":true,"derived":true,"evidenceMineId":"4105801","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4105801|0162133|2025-05-20|0190061|2025-01-27|40553"}}],"coverage":{"historyRecords":3,"edgeCount":6,"intervalAnomalies":2,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4105801","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"}}