{"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":"2026-10-13T11:19:05.459773+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":"4003546","name":"Jones Parsons Quarry"},"operator":{"type":"operator","id":"0162993","name":"Jones Bros. Contractors, LLC"},"controller":{"type":"controller","id":"0147101","name":"HMA Holdings; James F  McCulloch; W Andrew  Wall; Alice M  Wall"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"0147101","name":"W Andrew  Wall et al"},"object":{"type":"mine","id":"4003546","name":"Jones Parsons Quarry"},"validFrom":"2019-04-16","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4003546|0147101|2019-04-16|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0162993","name":"Jones Bros. Contractors, LLC"},"object":{"type":"mine","id":"4003546","name":"Jones Parsons Quarry"},"validFrom":"2021-02-03","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4003546|0162993|2021-02-03|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0147101","name":"W Andrew  Wall et al"},"object":{"type":"operator","id":"0162993","name":"Jones Bros. Contractors, LLC"},"validFrom":"2021-02-03","validTo":null,"current":true,"derived":true,"evidenceMineId":"4003546","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4003546|0162993|2021-02-03|0147101|2019-04-16|30144"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0147101","name":"James F  McCulloch et al"},"object":{"type":"operator","id":"0162993","name":"Jones Bros. Contractors, LLC"},"validFrom":"2021-02-03","validTo":null,"current":true,"derived":true,"evidenceMineId":"4003546","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4003546|0162993|2021-02-03|0147101|2019-04-16|30145"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0147101","name":"HMA Holdings et al"},"object":{"type":"operator","id":"0162993","name":"Jones Bros. Contractors, LLC"},"validFrom":"2021-02-03","validTo":null,"current":true,"derived":true,"evidenceMineId":"4003546","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4003546|0162993|2021-02-03|0147101|2019-04-16|30146"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0147101","name":"Alice M  Wall et al"},"object":{"type":"operator","id":"0162993","name":"Jones Bros. Contractors, LLC"},"validFrom":"2021-02-03","validTo":null,"current":true,"derived":true,"evidenceMineId":"4003546","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4003546|0162993|2021-02-03|0147101|2019-04-16|30147"}}],"coverage":{"historyRecords":4,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4003546","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}