{"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":"1101167","name":"Amrize McHenry Pit #26"},"operator":{"type":"operator","id":"0107425","name":"Amrize Mid-America Inc."},"controller":{"type":"controller","id":"0193740","name":"Amrize Ltd"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00200","name":"Meyer Material Acquisition Corp Et Al"},"object":{"type":"mine","id":"1101167","name":"Amrize McHenry Pit #26"},"validFrom":"1950-01-01","validTo":"2011-07-11","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1101167|M00200|1950-01-01|2011-07-11"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00779","name":"Mc Henry Sand & Gravel Company Inc"},"object":{"type":"mine","id":"1101167","name":"Amrize McHenry Pit #26"},"validFrom":"1950-01-01","validTo":"1988-09-08","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1101167|L00779|1950-01-01|1988-09-08"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00642","name":"Charles J  Miller"},"object":{"type":"mine","id":"1101167","name":"Amrize McHenry Pit #26"},"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":"1101167|M00642|1950-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00642","name":"Charles J  Miller"},"object":{"type":"operator","id":"L00779","name":"Mc Henry Sand & Gravel Company Inc"},"validFrom":"1950-01-01","validTo":"1988-09-08","current":false,"derived":true,"evidenceMineId":"1101167","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1101167|L00779|1950-01-01|M00642|1950-01-01|113665"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00240","name":"Meyer Material Company"},"object":{"type":"mine","id":"1101167","name":"Amrize McHenry Pit #26"},"validFrom":"1988-09-09","validTo":"2022-04-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1101167|L00240|1988-09-09|2022-04-30"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00200","name":"Meyer Material Acquisition Corp Et Al"},"object":{"type":"operator","id":"L00240","name":"Meyer Material Company"},"validFrom":"1988-09-09","validTo":"2011-07-11","current":false,"derived":true,"evidenceMineId":"1101167","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1101167|L00240|1988-09-09|M00200|1950-01-01|107244"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M02063","name":"Lafarge S A"},"object":{"type":"mine","id":"1101167","name":"Amrize McHenry Pit #26"},"validFrom":"2009-06-01","validTo":"2015-07-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1101167|M02063|2009-06-01|2015-07-09"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M07336","name":"Aggregate Industries PLC"},"object":{"type":"mine","id":"1101167","name":"Amrize McHenry Pit #26"},"validFrom":"2011-07-12","validTo":"2015-07-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1101167|M07336|2011-07-12|2015-07-09"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M07336","name":"Aggregate Industries PLC"},"object":{"type":"operator","id":"L00240","name":"Meyer Material Company"},"validFrom":"2011-07-12","validTo":"2015-07-09","current":false,"derived":true,"evidenceMineId":"1101167","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1101167|L00240|1988-09-09|M07336|2011-07-12|141051"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0119681","name":"Holcim Ltd"},"object":{"type":"mine","id":"1101167","name":"Amrize McHenry Pit #26"},"validFrom":"2015-07-10","validTo":"2025-06-22","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1101167|0119681|2015-07-10|2025-06-22"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0119681","name":"Holcim Ltd"},"object":{"type":"operator","id":"L00240","name":"Meyer Material Company"},"validFrom":"2015-07-10","validTo":"2022-04-30","current":false,"derived":true,"evidenceMineId":"1101167","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1101167|L00240|1988-09-09|0119681|2015-07-10|22919"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0107425","name":"Amrize Mid-America Inc."},"object":{"type":"mine","id":"1101167","name":"Amrize McHenry Pit #26"},"validFrom":"2022-05-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1101167|0107425|2022-05-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0119681","name":"Holcim Ltd"},"object":{"type":"operator","id":"0107425","name":"Amrize Mid-America Inc."},"validFrom":"2022-05-01","validTo":"2025-06-22","current":false,"derived":true,"evidenceMineId":"1101167","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1101167|0107425|2022-05-01|0119681|2015-07-10|22920"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M02063","name":"Lafarge S A"},"object":{"type":"operator","id":"0107425","name":"Amrize Mid-America Inc."},"validFrom":"2022-05-01","validTo":"2015-07-09","current":false,"derived":true,"evidenceMineId":"1101167","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1101167|0107425|2022-05-01|M02063|2009-06-01|123557"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0193740","name":"Amrize Ltd"},"object":{"type":"mine","id":"1101167","name":"Amrize McHenry Pit #26"},"validFrom":"2025-06-23","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1101167|0193740|2025-06-23|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0193740","name":"Amrize Ltd"},"object":{"type":"operator","id":"L00240","name":"Meyer Material Company"},"validFrom":"2025-06-23","validTo":"2022-04-30","current":false,"derived":true,"evidenceMineId":"1101167","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1101167|L00240|1988-09-09|0193740|2025-06-23|41208"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0193740","name":"Amrize Ltd"},"object":{"type":"operator","id":"0107425","name":"Amrize Mid-America Inc."},"validFrom":"2025-06-23","validTo":null,"current":true,"derived":true,"evidenceMineId":"1101167","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1101167|0107425|2022-05-01|0193740|2025-06-23|41209"}}],"coverage":{"historyRecords":8,"edgeCount":17,"intervalAnomalies":2,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1101167","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"}}