{"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":"2003165","name":"American Concrete Products"},"operator":{"type":"operator","id":"0140154","name":"Freedom Aggregates, LLC"},"controller":{"type":"controller","id":"0119281","name":"Brad  Jonckheere; Rick  Haslock"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"0050039","name":"American Concrete Products, Inc."},"object":{"type":"mine","id":"2003165","name":"American Concrete Products"},"validFrom":"2001-05-01","validTo":"2015-07-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2003165|0050039|2001-05-01|2015-07-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0040492","name":"Brad  Jonckheere"},"object":{"type":"mine","id":"2003165","name":"American Concrete Products"},"validFrom":"2001-05-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2003165|0040492|2001-05-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0040492","name":"Brad  Jonckheere"},"object":{"type":"operator","id":"0050039","name":"American Concrete Products, Inc."},"validFrom":"2001-05-01","validTo":"2015-07-31","current":false,"derived":true,"evidenceMineId":"2003165","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2003165|0050039|2001-05-01|0040492|2001-05-01|70"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0140154","name":"Freedom Aggregates, LLC"},"object":{"type":"mine","id":"2003165","name":"American Concrete Products"},"validFrom":"2015-08-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2003165|0140154|2015-08-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0119281","name":"Rick  Haslock et al"},"object":{"type":"mine","id":"2003165","name":"American Concrete Products"},"validFrom":"2015-08-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2003165|0119281|2015-08-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0119281","name":"Rick  Haslock et al"},"object":{"type":"operator","id":"0140154","name":"Freedom Aggregates, LLC"},"validFrom":"2015-08-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"2003165","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2003165|0140154|2015-08-01|0119281|2015-08-01|22813"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0119281","name":"Brad  Jonckheere et al"},"object":{"type":"operator","id":"0140154","name":"Freedom Aggregates, LLC"},"validFrom":"2015-08-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"2003165","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2003165|0140154|2015-08-01|0119281|2015-08-01|22814"}}],"coverage":{"historyRecords":3,"edgeCount":7,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"2003165","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"}}