{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-17T06:17:15.228Z","identity":{"mine_id":"1513492","name":"Black Hole No 3","status":"Abandoned","status_date":"1986-11-04","mine_type":"Underground","coal_metal":"C","commodity":"Coal (Bituminous)","state":"KY","county":"Pike","nearest_town":"Pikeville","operator_id":"P16897","operator_name":"Black Hole Mining Of Old Kentucky Inc","controller_id":"C01475","controller_name":"Shortridge Keaster","district":"C05","office":"Pikeville KY Field Office","employees":0,"latitude":37.485,"longitude":-82.5256},"coverage":{"contributingSources":3,"registeredSources":20,"sourceRows":5},"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":"2026-10-17T05:35:58.500035+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":"1513492","name":"Black Hole No 3"},"operator":{"type":"operator","id":"P16897","name":"Black Hole Mining Of Old Kentucky Inc"},"controller":{"type":"controller","id":"C01475","name":"Shortridge Keaster"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P13308","name":"D V & C Coal Company"},"object":{"type":"mine","id":"1513492","name":"Black Hole No 3"},"validFrom":"1982-05-01","validTo":"1983-07-12","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1513492|P13308|1982-05-01|1983-07-12"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C09256","name":"Vaughn Estille"},"object":{"type":"mine","id":"1513492","name":"Black Hole No 3"},"validFrom":"1982-05-01","validTo":"1983-07-12","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1513492|C09256|1982-05-01|1983-07-12"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C09256","name":"Vaughn Estille"},"object":{"type":"operator","id":"P13308","name":"D V & C Coal Company"},"validFrom":"1982-05-01","validTo":"1983-07-12","current":false,"derived":true,"evidenceMineId":"1513492","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1513492|P13308|1982-05-01|C09256|1982-05-01|79214"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P14572","name":"Black Gold Management Inc"},"object":{"type":"mine","id":"1513492","name":"Black Hole No 3"},"validFrom":"1983-07-13","validTo":"1985-06-27","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1513492|P14572|1983-07-13|1985-06-27"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C10562","name":"Hamilton Vincent"},"object":{"type":"mine","id":"1513492","name":"Black Hole No 3"},"validFrom":"1983-07-13","validTo":"1985-06-27","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1513492|C10562|1983-07-13|1985-06-27"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C10562","name":"Hamilton Vincent"},"object":{"type":"operator","id":"P14572","name":"Black Gold Management Inc"},"validFrom":"1983-07-13","validTo":"1985-06-27","current":false,"derived":true,"evidenceMineId":"1513492","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1513492|P14572|1983-07-13|C10562|1983-07-13|82318"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P16897","name":"Black Hole Mining Of Old Kentucky Inc"},"object":{"type":"mine","id":"1513492","name":"Black Hole No 3"},"validFrom":"1985-06-28","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1513492|P16897|1985-06-28|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C01475","name":"Shortridge Keaster Et Al"},"object":{"type":"mine","id":"1513492","name":"Black Hole No 3"},"validFrom":"1985-06-28","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1513492|C01475|1985-06-28|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C01475","name":"Shortridge Keaster Et Al"},"object":{"type":"operator","id":"P16897","name":"Black Hole Mining Of Old Kentucky Inc"},"validFrom":"1985-06-28","validTo":null,"current":true,"derived":true,"evidenceMineId":"1513492","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1513492|P16897|1985-06-28|C01475|1985-06-28|54233"}}],"coverage":{"historyRecords":3,"edgeCount":9,"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":"1986-11-04","lastDate":"1986-11-04","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":3,"firstDate":"1982-05-01","lastDate":"1985-06-28","metrics":{"recentRows":0,"currentOperatorTenures":1,"completedOperatorTenures":2},"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/1513492/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/1513492/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":"1513492","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873}}