{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"3605380","name":"Silverton Stripping","status":"Abandoned","status_date":"1990-02-02","mine_type":"Surface","coal_metal":"C","commodity":"Coal (Anthracite)","state":"PA","county":"Schuylkill","nearest_town":"Silverton","operator_id":"P20484","operator_name":"Selkirk Mining Company","controller_id":"C13950","controller_name":"Griffiths Thomas J","district":"M2","office":"Frackville PA Field Office","employees":0,"latitude":40.6547,"longitude":-76.2694},"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":"2026-10-13T11:19:05.459773+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":"3605380","name":"Silverton Stripping"},"operator":{"type":"operator","id":"P20484","name":"Selkirk Mining Company"},"controller":{"type":"controller","id":"C13950","name":"Griffiths Thomas J"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P05620","name":"Selkirk Mining Company"},"object":{"type":"mine","id":"3605380","name":"Silverton Stripping"},"validFrom":"1974-12-01","validTo":"1978-08-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3605380|P05620|1974-12-01|1978-08-09"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C04682","name":"Joseph  Kovaleski"},"object":{"type":"mine","id":"3605380","name":"Silverton Stripping"},"validFrom":"1974-12-01","validTo":"1978-08-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3605380|C04682|1974-12-01|1978-08-09"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C04682","name":"Joseph  Kovaleski"},"object":{"type":"operator","id":"P05620","name":"Selkirk Mining Company"},"validFrom":"1974-12-01","validTo":"1978-08-09","current":false,"derived":true,"evidenceMineId":"3605380","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3605380|P05620|1974-12-01|C04682|1974-12-01|66455"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P08550","name":"Selkirk Mining Company"},"object":{"type":"mine","id":"3605380","name":"Silverton Stripping"},"validFrom":"1978-08-10","validTo":"1989-06-12","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3605380|P08550|1978-08-10|1989-06-12"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C06811","name":"Ryon Richard B & Richard F"},"object":{"type":"mine","id":"3605380","name":"Silverton Stripping"},"validFrom":"1978-08-10","validTo":"1989-06-12","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3605380|C06811|1978-08-10|1989-06-12"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C06811","name":"Ryon Richard B & Richard F"},"object":{"type":"operator","id":"P08550","name":"Selkirk Mining Company"},"validFrom":"1978-08-10","validTo":"1989-06-12","current":false,"derived":true,"evidenceMineId":"3605380","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3605380|P08550|1978-08-10|C06811|1978-08-10|72989"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P20484","name":"Selkirk Mining Company"},"object":{"type":"mine","id":"3605380","name":"Silverton Stripping"},"validFrom":"1989-06-13","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3605380|P20484|1989-06-13|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C13950","name":"Griffiths Thomas J"},"object":{"type":"mine","id":"3605380","name":"Silverton Stripping"},"validFrom":"1989-06-13","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3605380|C13950|1989-06-13|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C13950","name":"Griffiths Thomas J"},"object":{"type":"operator","id":"P20484","name":"Selkirk Mining Company"},"validFrom":"1989-06-13","validTo":null,"current":true,"derived":true,"evidenceMineId":"3605380","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3605380|P20484|1989-06-13|C13950|1989-06-13|91554"}}],"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":"1990-02-02","lastDate":"1990-02-02","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":"1974-12-01","lastDate":"1989-06-13","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/3605380/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/3605380/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":"3605380","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}