{"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":"0801012","name":"Cudjoe Key Quarry"},"operator":{"type":"operator","id":"L07568","name":"Tarmac Florida Inc"},"controller":{"type":"controller","id":"M06014","name":"Tarmac Plc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M03674","name":"Frank P  Toppino"},"object":{"type":"mine","id":"0801012","name":"Cudjoe Key Quarry"},"validFrom":"1950-01-01","validTo":"1984-07-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0801012|M03674|1950-01-01|1984-07-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00122","name":"Lone Star Industries Inc"},"object":{"type":"mine","id":"0801012","name":"Cudjoe Key Quarry"},"validFrom":"1979-01-01","validTo":"1984-12-27","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0801012|M00122|1979-01-01|1984-12-27"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L04562","name":"Charley Toppino & Sons Inc"},"object":{"type":"mine","id":"0801012","name":"Cudjoe Key Quarry"},"validFrom":"1984-04-01","validTo":"1984-07-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0801012|L04562|1984-04-01|1984-07-31"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M03674","name":"Frank P  Toppino"},"object":{"type":"operator","id":"L04562","name":"Charley Toppino & Sons Inc"},"validFrom":"1984-04-01","validTo":"1984-07-31","current":false,"derived":true,"evidenceMineId":"0801012","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0801012|L04562|1984-04-01|M03674|1950-01-01|129725"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L02292","name":"Lone Star Florida Inc"},"object":{"type":"mine","id":"0801012","name":"Cudjoe Key Quarry"},"validFrom":"1984-08-01","validTo":"1984-12-27","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0801012|L02292|1984-08-01|1984-12-27"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00122","name":"Lone Star Industries Inc"},"object":{"type":"operator","id":"L02292","name":"Lone Star Florida Inc"},"validFrom":"1984-08-01","validTo":"1984-12-27","current":false,"derived":true,"evidenceMineId":"0801012","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0801012|L02292|1984-08-01|M00122|1979-01-01|104711"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L07568","name":"Tarmac Florida Inc"},"object":{"type":"mine","id":"0801012","name":"Cudjoe Key Quarry"},"validFrom":"1984-12-28","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0801012|L07568|1984-12-28|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06014","name":"Tarmac Plc"},"object":{"type":"mine","id":"0801012","name":"Cudjoe Key Quarry"},"validFrom":"1984-12-28","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0801012|M06014|1984-12-28|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06014","name":"Tarmac Plc"},"object":{"type":"operator","id":"L07568","name":"Tarmac Florida Inc"},"validFrom":"1984-12-28","validTo":null,"current":true,"derived":true,"evidenceMineId":"0801012","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0801012|L07568|1984-12-28|M06014|1984-12-28|135983"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0801012","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"}}