{"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":"1401862","name":"Sylvester Quarry"},"operator":{"type":"operator","id":"0211153","name":"Sunset Stone Co."},"controller":{"type":"controller","id":"0202401","name":"Nic  Camello; Rich  Johnson; Storm  Johnson"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"0211153","name":"Sunset Stone Co."},"object":{"type":"mine","id":"1401862","name":"Sylvester Quarry"},"validFrom":"2026-08-12","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1401862|0211153|2026-08-12|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0202401","name":"Storm  Johnson et al"},"object":{"type":"mine","id":"1401862","name":"Sylvester Quarry"},"validFrom":"2026-08-12","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1401862|0202401|2026-08-12|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0202401","name":"Storm  Johnson et al"},"object":{"type":"operator","id":"0211153","name":"Sunset Stone Co."},"validFrom":"2026-08-12","validTo":null,"current":true,"derived":true,"evidenceMineId":"1401862","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1401862|0211153|2026-08-12|0202401|2026-08-12|42873"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0202401","name":"Rich  Johnson et al"},"object":{"type":"operator","id":"0211153","name":"Sunset Stone Co."},"validFrom":"2026-08-12","validTo":null,"current":true,"derived":true,"evidenceMineId":"1401862","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1401862|0211153|2026-08-12|0202401|2026-08-12|42874"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0202401","name":"Nic  Camello et al"},"object":{"type":"operator","id":"0211153","name":"Sunset Stone Co."},"validFrom":"2026-08-12","validTo":null,"current":true,"derived":true,"evidenceMineId":"1401862","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1401862|0211153|2026-08-12|0202401|2026-08-12|42875"}}],"coverage":{"historyRecords":3,"edgeCount":5,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1401862","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"}}