{"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":"3000052","name":"Skaneateles Plant"},"operator":{"type":"operator","id":"L16322","name":"Heidelberg Materials Northeast LLC"},"controller":{"type":"controller","id":"M00004","name":"Heidelberg Materials AG"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00032","name":"General Crushed Stone Company"},"object":{"type":"mine","id":"3000052","name":"Skaneateles Plant"},"validFrom":"1950-01-01","validTo":"1988-11-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3000052|L00032|1950-01-01|1988-11-13"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00002","name":"Koppers Company Inc"},"object":{"type":"mine","id":"3000052","name":"Skaneateles 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":"3000052|M00002|1950-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00002","name":"Koppers Company Inc"},"object":{"type":"operator","id":"L00032","name":"General Crushed Stone Company"},"validFrom":"1950-01-01","validTo":"1988-11-13","current":false,"derived":true,"evidenceMineId":"3000052","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3000052|L00032|1950-01-01|M00002|1950-01-01|100320"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L16397","name":"Hanson Aggregates New York Inc"},"object":{"type":"mine","id":"3000052","name":"Skaneateles Plant"},"validFrom":"1988-11-14","validTo":"2004-04-05","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3000052|L16397|1988-11-14|2004-04-05"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00521","name":"Hanson PLC"},"object":{"type":"mine","id":"3000052","name":"Skaneateles Plant"},"validFrom":"1988-11-14","validTo":"2007-08-22","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3000052|M00521|1988-11-14|2007-08-22"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00521","name":"Hanson PLC"},"object":{"type":"operator","id":"L16397","name":"Hanson Aggregates New York Inc"},"validFrom":"1988-11-14","validTo":"2004-04-05","current":false,"derived":true,"evidenceMineId":"3000052","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3000052|L16397|1988-11-14|M00521|1988-11-14|112220"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L17823","name":"Hanson Aggregates Inc"},"object":{"type":"mine","id":"3000052","name":"Skaneateles Plant"},"validFrom":"2004-04-06","validTo":"2004-06-10","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3000052|L17823|2004-04-06|2004-06-10"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00521","name":"Hanson PLC"},"object":{"type":"operator","id":"L17823","name":"Hanson Aggregates Inc"},"validFrom":"2004-04-06","validTo":"2004-06-10","current":false,"derived":true,"evidenceMineId":"3000052","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3000052|L17823|2004-04-06|M00521|1988-11-14|112221"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L16397","name":"Heidelberg Materials Northeast-NY LLC"},"object":{"type":"mine","id":"3000052","name":"Skaneateles Plant"},"validFrom":"2004-06-11","validTo":"2025-12-02","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3000052|L16397|2004-06-11|2025-12-02"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00521","name":"Hanson PLC"},"object":{"type":"operator","id":"L16397","name":"Heidelberg Materials Northeast-NY LLC"},"validFrom":"2004-06-11","validTo":"2007-08-22","current":false,"derived":true,"evidenceMineId":"3000052","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3000052|L16397|2004-06-11|M00521|1988-11-14|112222"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00004","name":"Heidelberg Materials AG"},"object":{"type":"mine","id":"3000052","name":"Skaneateles Plant"},"validFrom":"2007-08-23","validTo":"2021-09-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3000052|M00004|2007-08-23|2021-09-30"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00004","name":"Heidelberg Materials AG"},"object":{"type":"operator","id":"L17823","name":"Hanson Aggregates Inc"},"validFrom":"2007-08-23","validTo":"2004-06-10","current":false,"derived":true,"evidenceMineId":"3000052","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3000052|L17823|2004-04-06|M00004|2007-08-23|100636"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00004","name":"Heidelberg Materials AG"},"object":{"type":"mine","id":"3000052","name":"Skaneateles Plant"},"validFrom":"2007-08-23","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3000052|M00004|2007-08-23|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00004","name":"Heidelberg Materials AG"},"object":{"type":"operator","id":"L16397","name":"Hanson Aggregates New York Inc"},"validFrom":"2007-08-23","validTo":"2004-04-05","current":false,"derived":true,"evidenceMineId":"3000052","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3000052|L16397|1988-11-14|M00004|2007-08-23|100824"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00004","name":"Heidelberg Materials AG"},"object":{"type":"operator","id":"L16397","name":"Heidelberg Materials Northeast-NY LLC"},"validFrom":"2007-08-23","validTo":"2025-12-02","current":false,"derived":true,"evidenceMineId":"3000052","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3000052|L16397|2004-06-11|M00004|2007-08-23|100825"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00174","name":"Martin Marietta Materials Inc"},"object":{"type":"mine","id":"3000052","name":"Skaneateles Plant"},"validFrom":"2021-10-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3000052|M00174|2021-10-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00174","name":"Martin Marietta Materials Inc"},"object":{"type":"operator","id":"L17823","name":"Hanson Aggregates Inc"},"validFrom":"2021-10-01","validTo":"2004-06-10","current":false,"derived":true,"evidenceMineId":"3000052","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3000052|L17823|2004-04-06|M00174|2021-10-01|106607"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L16322","name":"Heidelberg Materials Northeast LLC"},"object":{"type":"mine","id":"3000052","name":"Skaneateles Plant"},"validFrom":"2025-12-03","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3000052|L16322|2025-12-03|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00004","name":"Heidelberg Materials AG"},"object":{"type":"operator","id":"L16322","name":"Heidelberg Materials Northeast LLC"},"validFrom":"2025-12-03","validTo":null,"current":true,"derived":true,"evidenceMineId":"3000052","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3000052|L16322|2025-12-03|M00004|2007-08-23|100826"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00521","name":"Hanson PLC"},"object":{"type":"operator","id":"L16322","name":"Heidelberg Materials Northeast LLC"},"validFrom":"2025-12-03","validTo":"2007-08-22","current":false,"derived":true,"evidenceMineId":"3000052","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3000052|L16322|2025-12-03|M00521|1988-11-14|112223"}}],"coverage":{"historyRecords":10,"edgeCount":20,"intervalAnomalies":4,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3000052","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"}}