{"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":"2026-10-18T09:31:49.615908+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":"4703920","name":"Crystal Lake Sand and Gravel"},"operator":{"type":"operator","id":"0206733","name":"Summit Sand & Aggregates"},"controller":{"type":"controller","id":"0197602","name":"Jim  Otteman"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-18T09:31:49.615908+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"0182415","name":"Crystal Lake Sand and Gravel LLC"},"object":{"type":"mine","id":"4703920","name":"Crystal Lake Sand and Gravel"},"validFrom":"2022-04-21","validTo":"2025-12-21","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4703920|0182415|2022-04-21|2025-12-21"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0168743","name":"Anthony J Konya"},"object":{"type":"mine","id":"4703920","name":"Crystal Lake Sand and Gravel"},"validFrom":"2022-04-21","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4703920|0168743|2022-04-21|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0168743","name":"Anthony J Konya"},"object":{"type":"operator","id":"0182415","name":"Crystal Lake Sand and Gravel LLC"},"validFrom":"2022-04-21","validTo":"2025-12-21","current":false,"derived":true,"evidenceMineId":"4703920","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4703920|0182415|2022-04-21|0168743|2022-04-21|35650"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0206733","name":"Summit Sand & Aggregates"},"object":{"type":"mine","id":"4703920","name":"Crystal Lake Sand and Gravel"},"validFrom":"2025-12-22","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4703920|0206733|2025-12-22|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0197602","name":"Jim  Otteman"},"object":{"type":"mine","id":"4703920","name":"Crystal Lake Sand and Gravel"},"validFrom":"2025-12-22","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4703920|0197602|2025-12-22|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0197602","name":"Jim  Otteman"},"object":{"type":"operator","id":"0206733","name":"Summit Sand & Aggregates"},"validFrom":"2025-12-22","validTo":null,"current":true,"derived":true,"evidenceMineId":"4703920","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4703920|0206733|2025-12-22|0197602|2025-12-22|42141"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4703920","dataSource":"postgres","snapshotId":"2026-10-18T09:31:49.615908+00:00","completedAt":"2026-10-18T09:31:49.615Z","sourceCount":20,"totalRows":17915666,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}