{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"1516774","name":"Buford Mine","status":"Abandoned","status_date":"1996-10-17","mine_type":"Surface","coal_metal":"C","commodity":"Coal (Bituminous)","state":"KY","county":"Ohio","nearest_town":"Hartford","operator_id":"P07902","operator_name":"Winn Construction Company Inc","controller_id":"C06385","controller_name":"Winn Jerry E","district":"C10","office":"Madisonville KY Field Office","employees":0,"latitude":37.5597,"longitude":-86.9936},"coverage":{"contributingSources":3,"registeredSources":20,"sourceRows":8},"relationships":{"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":"1516774","name":"Buford Mine"},"operator":{"type":"operator","id":"P07902","name":"Winn Construction Company Inc"},"controller":{"type":"controller","id":"C06385","name":"Winn Jerry E"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02934","name":"Anne  Hoke et al"},"object":{"type":"mine","id":"1516774","name":"Buford Mine"},"validFrom":"1974-03-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516774|C02934|1974-03-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C06385","name":"Winn Jerry E"},"object":{"type":"mine","id":"1516774","name":"Buford Mine"},"validFrom":"1978-03-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516774|C06385|1978-03-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P07902","name":"Winn Construction Company Inc"},"object":{"type":"mine","id":"1516774","name":"Buford Mine"},"validFrom":"1989-10-01","validTo":"1992-02-26","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516774|P07902|1989-10-01|1992-02-26"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C06385","name":"Winn Jerry E"},"object":{"type":"operator","id":"P07902","name":"Winn Construction Company Inc"},"validFrom":"1989-10-01","validTo":"1992-02-26","current":false,"derived":true,"evidenceMineId":"1516774","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516774|P07902|1989-10-01|C06385|1978-03-01|71713"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C15292","name":"Lloyd John M"},"object":{"type":"mine","id":"1516774","name":"Buford Mine"},"validFrom":"1991-08-20","validTo":"1993-10-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516774|C15292|1991-08-20|1993-10-14"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P03559","name":"Hoke Company Inc"},"object":{"type":"mine","id":"1516774","name":"Buford Mine"},"validFrom":"1992-02-27","validTo":"1993-01-20","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516774|P03559|1992-02-27|1993-01-20"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02934","name":"Anne  Hoke et al"},"object":{"type":"operator","id":"P03559","name":"Hoke Company Inc"},"validFrom":"1992-02-27","validTo":"1993-01-20","current":false,"derived":true,"evidenceMineId":"1516774","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516774|P03559|1992-02-27|C02934|1974-03-01|61330"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02934","name":"Charles  Hoke et al"},"object":{"type":"operator","id":"P03559","name":"Hoke Company Inc"},"validFrom":"1992-02-27","validTo":"1993-01-20","current":false,"derived":true,"evidenceMineId":"1516774","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516774|P03559|1992-02-27|C02934|1974-03-01|61331"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P23218","name":"Mesa Coals Inc"},"object":{"type":"mine","id":"1516774","name":"Buford Mine"},"validFrom":"1993-01-21","validTo":"1993-10-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516774|P23218|1993-01-21|1993-10-14"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15292","name":"Lloyd John M"},"object":{"type":"operator","id":"P23218","name":"Mesa Coals Inc"},"validFrom":"1993-01-21","validTo":"1993-10-14","current":false,"derived":true,"evidenceMineId":"1516774","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516774|P23218|1993-01-21|C15292|1991-08-20|95187"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P21675","name":"Mesa Coals Inc"},"object":{"type":"mine","id":"1516774","name":"Buford Mine"},"validFrom":"1993-10-15","validTo":"1994-08-08","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516774|P21675|1993-10-15|1994-08-08"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14505","name":"Thunderbird Energy Inc"},"object":{"type":"mine","id":"1516774","name":"Buford Mine"},"validFrom":"1993-10-15","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516774|C14505|1993-10-15|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14505","name":"Thunderbird Energy Inc"},"object":{"type":"operator","id":"P21675","name":"Mesa Coals Inc"},"validFrom":"1993-10-15","validTo":"1994-08-08","current":false,"derived":true,"evidenceMineId":"1516774","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516774|P21675|1993-10-15|C14505|1993-10-15|93039"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P07902","name":"Winn Construction Company Inc"},"object":{"type":"mine","id":"1516774","name":"Buford Mine"},"validFrom":"1994-08-09","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516774|P07902|1994-08-09|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C06385","name":"Winn Jerry E"},"object":{"type":"operator","id":"P07902","name":"Winn Construction Company Inc"},"validFrom":"1994-08-09","validTo":null,"current":true,"derived":true,"evidenceMineId":"1516774","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516774|P07902|1994-08-09|C06385|1978-03-01|71714"}}],"coverage":{"historyRecords":6,"edgeCount":15,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"sources":[{"id":"msha-addresses","name":"Addresses of Record","domains":["identity","logistics"],"products":["entity resolution","address history","facility geocoding"],"rowCount":1,"firstDate":"1996-10-17","lastDate":"1996-10-17","metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-controller-operator-history","name":"Controller and Operator History","domains":["identity","compliance"],"products":["historical ownership attribution","operator transitions","valid-time joins"],"rowCount":6,"firstDate":"1989-10-01","lastDate":"1994-08-09","metrics":{"recentRows":0,"currentOperatorTenures":1,"completedOperatorTenures":5},"periods":{},"recentRecords":[]},{"id":"msha-mines","name":"Mines","domains":["identity","production","logistics"],"products":["mine identity","status","commodity","location","operator and controller"],"rowCount":1,"firstDate":null,"lastDate":null,"metrics":{},"periods":{},"recentRecords":[]}],"safety":{"href":"/api/v1/mines/1516774/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/1516774/silica","description":"Dedicated silica records, measurements, sample status and trends. Defaults to the snapshot year; use year=all for history."},"externalContext":{"eia":null,"title30":{"snapshot":{"chapterCount":6,"featuredSectionCount":100,"latestAmendedOn":"2026-08-14","latestIssueDate":"2026-08-14","partCount":206,"sectionCount":5954,"upToDateAsOf":"2026-08-19"},"regulations":[],"fullCorpus":"/data/title30-sections.json"}}},"meta":{"representation":"json","mineId":"1516774","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}