{"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":"3503824","name":"Bodyfelt  Pit"},"operator":{"type":"operator","id":"0171053","name":"Little River Quarries LLC"},"controller":{"type":"controller","id":"0155823","name":"Waylon R Porter; George R Bodyfelt"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"0138273","name":"Porter Excavation"},"object":{"type":"mine","id":"3503824","name":"Bodyfelt  Pit"},"validFrom":"2015-02-01","validTo":"2020-06-11","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3503824|0138273|2015-02-01|2020-06-11"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0117701","name":"Waylon R  Porter"},"object":{"type":"mine","id":"3503824","name":"Bodyfelt  Pit"},"validFrom":"2015-02-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3503824|0117701|2015-02-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0117701","name":"Waylon R  Porter"},"object":{"type":"operator","id":"0138273","name":"Porter Excavation"},"validFrom":"2015-02-01","validTo":"2020-06-11","current":false,"derived":true,"evidenceMineId":"3503824","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3503824|0138273|2015-02-01|0117701|2015-02-01|22401"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0171053","name":"Little River Quarries LLC"},"object":{"type":"mine","id":"3503824","name":"Bodyfelt  Pit"},"validFrom":"2020-06-12","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3503824|0171053|2020-06-12|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0155823","name":"Waylon R Porter et al"},"object":{"type":"mine","id":"3503824","name":"Bodyfelt  Pit"},"validFrom":"2020-06-12","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3503824|0155823|2020-06-12|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0155823","name":"Waylon R Porter et al"},"object":{"type":"operator","id":"0171053","name":"Little River Quarries LLC"},"validFrom":"2020-06-12","validTo":null,"current":true,"derived":true,"evidenceMineId":"3503824","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3503824|0171053|2020-06-12|0155823|2020-06-12|32309"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0155823","name":"George R Bodyfelt et al"},"object":{"type":"operator","id":"0171053","name":"Little River Quarries LLC"},"validFrom":"2020-06-12","validTo":null,"current":true,"derived":true,"evidenceMineId":"3503824","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3503824|0171053|2020-06-12|0155823|2020-06-12|32310"}}],"coverage":{"historyRecords":3,"edgeCount":7,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3503824","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"}}