{"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":"2200752","name":"Quikrete Aggregates of Picayune"},"operator":{"type":"operator","id":"L16774","name":"The Quikrete Companies"},"controller":{"type":"controller","id":"M12812","name":"Quikrete Holdings Inc."},"source":{"datasetId":"msha-mines","observedAt":"2026-10-18T09:31:49.615908+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M03892","name":"Richard  Stockstill  et al"},"object":{"type":"mine","id":"2200752","name":"Quikrete Aggregates of Picayune"},"validFrom":"1990-07-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"2200752|M03892|1990-07-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M12812","name":"Quikrete Holdings Inc."},"object":{"type":"mine","id":"2200752","name":"Quikrete Aggregates of Picayune"},"validFrom":"1998-09-11","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"2200752|M12812|1998-09-11|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L11745","name":"Custom Aggregates & Grinding Inc"},"object":{"type":"mine","id":"2200752","name":"Quikrete Aggregates of Picayune"},"validFrom":"2003-10-22","validTo":"2008-07-27","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"2200752|L11745|2003-10-22|2008-07-27"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M03892","name":"Richard  Stockstill  et al"},"object":{"type":"operator","id":"L11745","name":"Custom Aggregates & Grinding Inc"},"validFrom":"2003-10-22","validTo":"2008-07-27","current":false,"derived":true,"evidenceMineId":"2200752","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"2200752|L11745|2003-10-22|M03892|1990-07-01|130407"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M03892","name":"Huey  Stockstill  et al"},"object":{"type":"operator","id":"L11745","name":"Custom Aggregates & Grinding Inc"},"validFrom":"2003-10-22","validTo":"2008-07-27","current":false,"derived":true,"evidenceMineId":"2200752","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"2200752|L11745|2003-10-22|M03892|1990-07-01|130408"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L16774","name":"The Quikrete Companies"},"object":{"type":"mine","id":"2200752","name":"Quikrete Aggregates of Picayune"},"validFrom":"2008-07-28","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"2200752|L16774|2008-07-28|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M12812","name":"Quikrete Holdings Inc."},"object":{"type":"operator","id":"L16774","name":"The Quikrete Companies"},"validFrom":"2008-07-28","validTo":null,"current":true,"derived":true,"evidenceMineId":"2200752","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"2200752|L16774|2008-07-28|M12812|1998-09-11|154617"}}],"coverage":{"historyRecords":3,"edgeCount":7,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"2200752","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"}}