{"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":"0801267","name":"1874 Marianna"},"operator":{"type":"operator","id":"0094765","name":"Arcosa Aggregates Gulf Coast, LLC"},"controller":{"type":"controller","id":"0144281","name":"Arcosa, Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L16088","name":"North Florida Rock Ltd"},"object":{"type":"mine","id":"0801267","name":"1874 Marianna"},"validFrom":"1998-05-01","validTo":"2017-05-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0801267|L16088|1998-05-01|2017-05-01"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M12286","name":"Fred M.  Webb et al"},"object":{"type":"mine","id":"0801267","name":"1874 Marianna"},"validFrom":"1998-05-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0801267|M12286|1998-05-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M12286","name":"Fred M.  Webb et al"},"object":{"type":"operator","id":"L16088","name":"North Florida Rock Ltd"},"validFrom":"1998-05-01","validTo":"2017-05-01","current":false,"derived":true,"evidenceMineId":"0801267","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0801267|L16088|1998-05-01|M12286|1998-05-01|153454"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0068613","name":"VantaCore Partners LP et al"},"object":{"type":"mine","id":"0801267","name":"1874 Marianna"},"validFrom":"2008-09-04","validTo":"2018-12-10","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0801267|0068613|2008-09-04|2018-12-10"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0151014","name":"North Florida Rock LLC"},"object":{"type":"mine","id":"0801267","name":"1874 Marianna"},"validFrom":"2017-05-02","validTo":"2018-12-05","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0801267|0151014|2017-05-02|2018-12-05"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0120301","name":"H I G Capital LLC"},"object":{"type":"mine","id":"0801267","name":"1874 Marianna"},"validFrom":"2017-05-02","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0801267|0120301|2017-05-02|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0120301","name":"H I G Capital LLC"},"object":{"type":"operator","id":"0151014","name":"North Florida Rock LLC"},"validFrom":"2017-05-02","validTo":"2018-12-05","current":false,"derived":true,"evidenceMineId":"0801267","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0801267|0151014|2017-05-02|0120301|2017-05-02|23491"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0160833","name":"ACG Materials"},"object":{"type":"mine","id":"0801267","name":"1874 Marianna"},"validFrom":"2018-12-06","validTo":"2023-01-08","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0801267|0160833|2018-12-06|2023-01-08"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0144281","name":"Arcosa, Inc"},"object":{"type":"mine","id":"0801267","name":"1874 Marianna"},"validFrom":"2018-12-06","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0801267|0144281|2018-12-06|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0144281","name":"Arcosa, Inc"},"object":{"type":"operator","id":"0160833","name":"ACG Materials"},"validFrom":"2018-12-06","validTo":"2023-01-08","current":false,"derived":true,"evidenceMineId":"0801267","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0801267|0160833|2018-12-06|0144281|2018-12-06|29287"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0147021","name":"Sun Capital Partners Inc"},"object":{"type":"mine","id":"0801267","name":"1874 Marianna"},"validFrom":"2018-12-11","validTo":"2021-04-05","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0801267|0147021|2018-12-11|2021-04-05"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0144281","name":"Arcosa, Inc"},"object":{"type":"mine","id":"0801267","name":"1874 Marianna"},"validFrom":"2021-04-06","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0801267|0144281|2021-04-06|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0094765","name":"Arcosa Aggregates Gulf Coast, LLC"},"object":{"type":"mine","id":"0801267","name":"1874 Marianna"},"validFrom":"2023-01-09","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0801267|0094765|2023-01-09|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0068613","name":"VantaCore Partners LP et al"},"object":{"type":"operator","id":"0094765","name":"Arcosa Aggregates Gulf Coast, LLC"},"validFrom":"2023-01-09","validTo":"2018-12-10","current":false,"derived":true,"evidenceMineId":"0801267","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0801267|0094765|2023-01-09|0068613|2008-09-04|9662"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0144281","name":"Arcosa, Inc"},"object":{"type":"operator","id":"0094765","name":"Arcosa Aggregates Gulf Coast, LLC"},"validFrom":"2023-01-09","validTo":null,"current":true,"derived":true,"evidenceMineId":"0801267","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0801267|0094765|2023-01-09|0144281|2021-04-06|29315"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0147021","name":"Sun Capital Partners Inc"},"object":{"type":"operator","id":"0094765","name":"Arcosa Aggregates Gulf Coast, LLC"},"validFrom":"2023-01-09","validTo":"2021-04-05","current":false,"derived":true,"evidenceMineId":"0801267","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0801267|0094765|2023-01-09|0147021|2018-12-11|30083"}}],"coverage":{"historyRecords":6,"edgeCount":16,"intervalAnomalies":2,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0801267","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"}}