{"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":"0100629","name":"ARGOS ROBERTA PLANT"},"operator":{"type":"operator","id":"0119988","name":"Quikrete Construction Materials, LLC"},"controller":{"type":"controller","id":"M12812","name":"Quikrete Holdings Inc."},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00210","name":"Martin Marietta Cement"},"object":{"type":"mine","id":"0100629","name":"ARGOS ROBERTA PLANT"},"validFrom":"1950-01-01","validTo":"1983-05-17","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100629|L00210|1950-01-01|1983-05-17"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00174","name":"Martin Marietta Materials Inc"},"object":{"type":"mine","id":"0100629","name":"ARGOS ROBERTA PLANT"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100629|M00174|1950-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00174","name":"Martin Marietta Materials Inc"},"object":{"type":"operator","id":"L00210","name":"Martin Marietta Cement"},"validFrom":"1950-01-01","validTo":"1983-05-17","current":false,"derived":true,"evidenceMineId":"0100629","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100629|L00210|1950-01-01|M00174|1950-01-01|105582"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L12113","name":"Blue Circle Cement"},"object":{"type":"mine","id":"0100629","name":"ARGOS ROBERTA PLANT"},"validFrom":"1983-05-18","validTo":"2001-07-11","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100629|L12113|1983-05-18|2001-07-11"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M05332","name":"Blue Circle Industries Plc"},"object":{"type":"mine","id":"0100629","name":"ARGOS ROBERTA PLANT"},"validFrom":"1983-05-18","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100629|M05332|1983-05-18|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M05332","name":"Blue Circle Industries Plc"},"object":{"type":"operator","id":"L12113","name":"Blue Circle Cement"},"validFrom":"1983-05-18","validTo":"2001-07-11","current":false,"derived":true,"evidenceMineId":"0100629","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100629|L12113|1983-05-18|M05332|1983-05-18|134274"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0050815","name":"Lafarge Building Materials Incorporated"},"object":{"type":"mine","id":"0100629","name":"ARGOS ROBERTA PLANT"},"validFrom":"2001-07-12","validTo":"2011-10-02","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100629|0050815|2001-07-12|2011-10-02"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M02063","name":"Lafarge S A"},"object":{"type":"mine","id":"0100629","name":"ARGOS ROBERTA PLANT"},"validFrom":"2001-07-12","validTo":"2015-07-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100629|M02063|2001-07-12|2015-07-09"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M02063","name":"Lafarge S A"},"object":{"type":"operator","id":"0050815","name":"Lafarge Building Materials Incorporated"},"validFrom":"2001-07-12","validTo":"2011-10-02","current":false,"derived":true,"evidenceMineId":"0100629","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100629|0050815|2001-07-12|M02063|2001-07-12|123392"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0119988","name":"Quikrete Construction Materials, LLC"},"object":{"type":"mine","id":"0100629","name":"ARGOS ROBERTA PLANT"},"validFrom":"2011-10-03","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100629|0119988|2011-10-03|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0101985","name":"Cementos Argos S A"},"object":{"type":"mine","id":"0100629","name":"ARGOS ROBERTA PLANT"},"validFrom":"2011-10-03","validTo":"2023-01-11","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100629|0101985|2011-10-03|2023-01-11"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0101985","name":"Cementos Argos S A"},"object":{"type":"operator","id":"0119988","name":"Quikrete Construction Materials, LLC"},"validFrom":"2011-10-03","validTo":"2023-01-11","current":false,"derived":true,"evidenceMineId":"0100629","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100629|0119988|2011-10-03|0101985|2011-10-03|17424"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0119681","name":"Holcim Ltd"},"object":{"type":"mine","id":"0100629","name":"ARGOS ROBERTA PLANT"},"validFrom":"2015-07-10","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100629|0119681|2015-07-10|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0119681","name":"Holcim Ltd"},"object":{"type":"operator","id":"0050815","name":"Lafarge Building Materials Incorporated"},"validFrom":"2015-07-10","validTo":"2011-10-02","current":false,"derived":true,"evidenceMineId":"0100629","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100629|0050815|2001-07-12|0119681|2015-07-10|23155"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M02046","name":"Summit Materials LLC"},"object":{"type":"mine","id":"0100629","name":"ARGOS ROBERTA PLANT"},"validFrom":"2023-01-12","validTo":"2025-08-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100629|M02046|2023-01-12|2025-08-03"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M02046","name":"Summit Materials LLC"},"object":{"type":"operator","id":"0119988","name":"Quikrete Construction Materials, LLC"},"validFrom":"2023-01-12","validTo":"2025-08-03","current":false,"derived":true,"evidenceMineId":"0100629","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100629|0119988|2011-10-03|M02046|2023-01-12|123114"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M12812","name":"Quikrete Holdings Inc."},"object":{"type":"mine","id":"0100629","name":"ARGOS ROBERTA PLANT"},"validFrom":"2025-08-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100629|M12812|2025-08-04|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M12812","name":"Quikrete Holdings Inc."},"object":{"type":"operator","id":"0119988","name":"Quikrete Construction Materials, LLC"},"validFrom":"2025-08-04","validTo":null,"current":true,"derived":true,"evidenceMineId":"0100629","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0100629|0119988|2011-10-03|M12812|2025-08-04|154617"}}],"coverage":{"historyRecords":7,"edgeCount":18,"intervalAnomalies":1,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0100629","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"}}