{"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":"0102504","name":"Pit No 1"},"operator":{"type":"operator","id":"L08387","name":"F & M Gravel Company"},"controller":{"type":"controller","id":"M03559","name":"Fullenwider Travis"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L07605","name":"Pine Flat Gravel Company Inc"},"object":{"type":"mine","id":"0102504","name":"Pit No 1"},"validFrom":"1981-09-01","validTo":"1984-09-20","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0102504|L07605|1981-09-01|1984-09-20"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06042","name":"Mercer D C"},"object":{"type":"mine","id":"0102504","name":"Pit No 1"},"validFrom":"1981-09-01","validTo":"1984-09-20","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0102504|M06042|1981-09-01|1984-09-20"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06042","name":"Mercer D C"},"object":{"type":"operator","id":"L07605","name":"Pine Flat Gravel Company Inc"},"validFrom":"1981-09-01","validTo":"1984-09-20","current":false,"derived":true,"evidenceMineId":"0102504","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0102504|L07605|1981-09-01|M06042|1981-09-01|136092"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L07606","name":"Pine Flat Gravel Company Inc"},"object":{"type":"mine","id":"0102504","name":"Pit No 1"},"validFrom":"1984-09-21","validTo":"1986-02-12","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0102504|L07606|1984-09-21|1986-02-12"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06043","name":"Allen Randy E"},"object":{"type":"mine","id":"0102504","name":"Pit No 1"},"validFrom":"1984-09-21","validTo":"1986-02-12","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0102504|M06043|1984-09-21|1986-02-12"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06043","name":"Allen Randy E"},"object":{"type":"operator","id":"L07606","name":"Pine Flat Gravel Company Inc"},"validFrom":"1984-09-21","validTo":"1986-02-12","current":false,"derived":true,"evidenceMineId":"0102504","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0102504|L07606|1984-09-21|M06043|1984-09-21|136093"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L08387","name":"F & M Gravel Company"},"object":{"type":"mine","id":"0102504","name":"Pit No 1"},"validFrom":"1986-02-13","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0102504|L08387|1986-02-13|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M03559","name":"Fullenwider Travis Et Al"},"object":{"type":"mine","id":"0102504","name":"Pit No 1"},"validFrom":"1986-02-13","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0102504|M03559|1986-02-13|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M03559","name":"Fullenwider Travis Et Al"},"object":{"type":"operator","id":"L08387","name":"F & M Gravel Company"},"validFrom":"1986-02-13","validTo":null,"current":true,"derived":true,"evidenceMineId":"0102504","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0102504|L08387|1986-02-13|M03559|1986-02-13|129346"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0102504","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"}}