{"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":"2026-10-17T05:35:58.500035+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":"3002071","name":"333 Sand & Gravel"},"operator":{"type":"operator","id":"L14487","name":"Austin Construction LLC"},"controller":{"type":"controller","id":"M11056","name":"Michael  Austin"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L39253","name":"Town Of Campbell"},"object":{"type":"mine","id":"3002071","name":"333 Sand & Gravel"},"validFrom":"1950-01-01","validTo":"1996-03-24","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3002071|L39253|1950-01-01|1996-03-24"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M39253","name":"Town Of Campbell-NY"},"object":{"type":"mine","id":"3002071","name":"333 Sand & Gravel"},"validFrom":"1950-01-01","validTo":"1996-03-24","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3002071|M39253|1950-01-01|1996-03-24"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M39253","name":"Town Of Campbell-NY"},"object":{"type":"operator","id":"L39253","name":"Town Of Campbell"},"validFrom":"1950-01-01","validTo":"1996-03-24","current":false,"derived":true,"evidenceMineId":"3002071","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3002071|L39253|1950-01-01|M39253|1950-01-01|168823"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L14487","name":"Austin Construction LLC"},"object":{"type":"mine","id":"3002071","name":"333 Sand & Gravel"},"validFrom":"1996-03-25","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3002071|L14487|1996-03-25|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M11056","name":"Michael  Austin"},"object":{"type":"mine","id":"3002071","name":"333 Sand & Gravel"},"validFrom":"1996-03-25","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3002071|M11056|1996-03-25|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M11056","name":"Michael  Austin"},"object":{"type":"operator","id":"L14487","name":"Austin Construction LLC"},"validFrom":"1996-03-25","validTo":null,"current":true,"derived":true,"evidenceMineId":"3002071","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3002071|L14487|1996-03-25|M11056|1996-03-25|150656"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3002071","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}