{"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":"0403301","name":"Strathmore Granite Pit"},"operator":{"type":"operator","id":"L04996","name":"Adair Brown Company"},"controller":{"type":"controller","id":"M04033","name":"Brown Adair"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L04809","name":"Glen Gates Company"},"object":{"type":"mine","id":"0403301","name":"Strathmore Granite Pit"},"validFrom":"1950-01-01","validTo":"1979-03-21","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0403301|L04809|1950-01-01|1979-03-21"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M03886","name":"Gates Glen"},"object":{"type":"mine","id":"0403301","name":"Strathmore Granite Pit"},"validFrom":"1950-01-01","validTo":"1979-03-21","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0403301|M03886|1950-01-01|1979-03-21"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M03886","name":"Gates Glen"},"object":{"type":"operator","id":"L04809","name":"Glen Gates Company"},"validFrom":"1950-01-01","validTo":"1979-03-21","current":false,"derived":true,"evidenceMineId":"0403301","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0403301|L04809|1950-01-01|M03886|1950-01-01|130357"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L04810","name":"Charles Gil Company"},"object":{"type":"mine","id":"0403301","name":"Strathmore Granite Pit"},"validFrom":"1979-03-22","validTo":"1981-03-08","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0403301|L04810|1979-03-22|1981-03-08"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M03887","name":"Gil Charles"},"object":{"type":"mine","id":"0403301","name":"Strathmore Granite Pit"},"validFrom":"1979-03-22","validTo":"1981-03-08","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0403301|M03887|1979-03-22|1981-03-08"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M03887","name":"Gil Charles"},"object":{"type":"operator","id":"L04810","name":"Charles Gil Company"},"validFrom":"1979-03-22","validTo":"1981-03-08","current":false,"derived":true,"evidenceMineId":"0403301","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0403301|L04810|1979-03-22|M03887|1979-03-22|130358"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L04996","name":"Adair Brown Company"},"object":{"type":"mine","id":"0403301","name":"Strathmore Granite Pit"},"validFrom":"1981-03-09","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0403301|L04996|1981-03-09|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M04033","name":"Brown Adair"},"object":{"type":"mine","id":"0403301","name":"Strathmore Granite Pit"},"validFrom":"1981-03-09","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0403301|M04033|1981-03-09|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M04033","name":"Brown Adair"},"object":{"type":"operator","id":"L04996","name":"Adair Brown Company"},"validFrom":"1981-03-09","validTo":null,"current":true,"derived":true,"evidenceMineId":"0403301","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0403301|L04996|1981-03-09|M04033|1981-03-09|130750"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0403301","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"}}