{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"1507057","name":"No 2 Mine","status":"Abandoned and Sealed","status_date":"1981-07-22","mine_type":"Underground","coal_metal":"C","commodity":"Coal (Bituminous)","state":"KY","county":"Letcher","nearest_town":"Isom","operator_id":"P03127","operator_name":"Triple L Coal Corp","controller_id":"C02668","controller_name":"Collins Logan","district":"C05","office":"Norton VA Field Office","employees":0,"latitude":37.2042,"longitude":-82.8542},"coverage":{"contributingSources":3,"registeredSources":20,"sourceRows":6},"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":"1507057","name":"No 2 Mine"},"operator":{"type":"operator","id":"P03127","name":"Triple L Coal Corp"},"controller":{"type":"controller","id":"C02668","name":"Collins Logan"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02507","name":"Ricky Coal Company"},"object":{"type":"mine","id":"1507057","name":"No 2 Mine"},"validFrom":"1950-01-01","validTo":"1974-08-15","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1507057|C02507|1950-01-01|1974-08-15"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P02927","name":"Ricky Coal Company"},"object":{"type":"mine","id":"1507057","name":"No 2 Mine"},"validFrom":"1974-01-01","validTo":"1974-08-15","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1507057|P02927|1974-01-01|1974-08-15"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02507","name":"Ricky Coal Company"},"object":{"type":"operator","id":"P02927","name":"Ricky Coal Company"},"validFrom":"1974-01-01","validTo":"1974-08-15","current":false,"derived":true,"evidenceMineId":"1507057","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1507057|P02927|1974-01-01|C02507|1950-01-01|58796"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P02581","name":"In Law Coal Co"},"object":{"type":"mine","id":"1507057","name":"No 2 Mine"},"validFrom":"1974-08-16","validTo":"1976-01-26","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1507057|P02581|1974-08-16|1976-01-26"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02222","name":"Hatton Billy Et Al"},"object":{"type":"mine","id":"1507057","name":"No 2 Mine"},"validFrom":"1974-08-16","validTo":"1976-01-26","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1507057|C02222|1974-08-16|1976-01-26"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02222","name":"Hatton Billy Et Al"},"object":{"type":"operator","id":"P02581","name":"In Law Coal Co"},"validFrom":"1974-08-16","validTo":"1976-01-26","current":false,"derived":true,"evidenceMineId":"1507057","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1507057|P02581|1974-08-16|C02222|1974-08-16|57867"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P02580","name":"J & C Coal Co"},"object":{"type":"mine","id":"1507057","name":"No 2 Mine"},"validFrom":"1976-01-27","validTo":"1976-08-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1507057|P02580|1976-01-27|1976-08-03"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02221","name":"J & C Coal Company"},"object":{"type":"mine","id":"1507057","name":"No 2 Mine"},"validFrom":"1976-01-27","validTo":"1976-08-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1507057|C02221|1976-01-27|1976-08-03"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02221","name":"J & C Coal Company"},"object":{"type":"operator","id":"P02580","name":"J & C Coal Co"},"validFrom":"1976-01-27","validTo":"1976-08-03","current":false,"derived":true,"evidenceMineId":"1507057","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1507057|P02580|1976-01-27|C02221|1976-01-27|57866"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02668","name":"Collins Logan"},"object":{"type":"mine","id":"1507057","name":"No 2 Mine"},"validFrom":"1976-07-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1507057|C02668|1976-07-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P03127","name":"Triple L Coal Corp"},"object":{"type":"mine","id":"1507057","name":"No 2 Mine"},"validFrom":"1976-08-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1507057|P03127|1976-08-04|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02668","name":"Collins Logan"},"object":{"type":"operator","id":"P03127","name":"Triple L Coal Corp"},"validFrom":"1976-08-04","validTo":null,"current":true,"derived":true,"evidenceMineId":"1507057","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1507057|P03127|1976-08-04|C02668|1976-07-01|60373"}}],"coverage":{"historyRecords":4,"edgeCount":12,"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":"1981-07-22","lastDate":"1981-07-22","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":4,"firstDate":"1974-01-01","lastDate":"1976-08-04","metrics":{"recentRows":0,"currentOperatorTenures":1,"completedOperatorTenures":3},"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/1507057/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/1507057/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":"1507057","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}