{"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":"4104143","name":"Pettibone"},"operator":{"type":"operator","id":"0051796","name":"Texcon Materials LTD"},"controller":{"type":"controller","id":"0042475","name":"Carey D  Smith; Ora E  Smith"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M10687","name":"Mary  Fulton"},"object":{"type":"mine","id":"4104143","name":"Pettibone"},"validFrom":"1995-02-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4104143|M10687|1995-02-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L13987","name":"Brazos Valley Sand & Gravel Inc"},"object":{"type":"mine","id":"4104143","name":"Pettibone"},"validFrom":"1999-11-01","validTo":"2002-12-04","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4104143|L13987|1999-11-01|2002-12-04"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M10687","name":"Mary  Fulton"},"object":{"type":"operator","id":"L13987","name":"Brazos Valley Sand & Gravel Inc"},"validFrom":"1999-11-01","validTo":"2002-12-04","current":false,"derived":true,"evidenceMineId":"4104143","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4104143|L13987|1999-11-01|M10687|1995-02-01|149775"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0051796","name":"Texcon Materials LTD"},"object":{"type":"mine","id":"4104143","name":"Pettibone"},"validFrom":"2002-12-05","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4104143|0051796|2002-12-05|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0042475","name":"Carey D  Smith Et Al"},"object":{"type":"mine","id":"4104143","name":"Pettibone"},"validFrom":"2002-12-05","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4104143|0042475|2002-12-05|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0042475","name":"Carey D  Smith Et Al"},"object":{"type":"operator","id":"0051796","name":"Texcon Materials LTD"},"validFrom":"2002-12-05","validTo":null,"current":true,"derived":true,"evidenceMineId":"4104143","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4104143|0051796|2002-12-05|0042475|2002-12-05|3993"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0042475","name":"Ora E  Smith Et Al"},"object":{"type":"operator","id":"0051796","name":"Texcon Materials LTD"},"validFrom":"2002-12-05","validTo":null,"current":true,"derived":true,"evidenceMineId":"4104143","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4104143|0051796|2002-12-05|0042475|2002-12-05|3994"}}],"coverage":{"historyRecords":3,"edgeCount":7,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4104143","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"}}