{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-17T06:17:15.228Z","identity":{"mine_id":"1300372","name":"Ico Osko #4 Strip","status":"Abandoned","status_date":"1979-11-05","mine_type":"Surface","coal_metal":"C","commodity":"Coal (Bituminous)","state":"IA","county":"Mahaska","nearest_town":"","operator_id":"P02422","operator_name":"I C O Corp","controller_id":"C02081","controller_name":"Wolfe C L","district":"C08","office":"Vincennes District","employees":0,"latitude":null,"longitude":null},"coverage":{"contributingSources":3,"registeredSources":20,"sourceRows":4},"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":"1300372","name":"Ico Osko #4 Strip"},"operator":{"type":"operator","id":"P02422","name":"I C O Corp"},"controller":{"type":"controller","id":"C02081","name":"Wolfe C L"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P02421","name":"New Lanning Coal Co"},"object":{"type":"mine","id":"1300372","name":"Ico Osko #4 Strip"},"validFrom":"1950-01-01","validTo":"1974-04-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1300372|P02421|1950-01-01|1974-04-30"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02080","name":"New Lanning Coal Company"},"object":{"type":"mine","id":"1300372","name":"Ico Osko #4 Strip"},"validFrom":"1950-01-01","validTo":"1974-04-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1300372|C02080|1950-01-01|1974-04-30"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02080","name":"New Lanning Coal Company"},"object":{"type":"operator","id":"P02421","name":"New Lanning Coal Co"},"validFrom":"1950-01-01","validTo":"1974-04-30","current":false,"derived":true,"evidenceMineId":"1300372","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1300372|P02421|1950-01-01|C02080|1950-01-01|57412"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P02422","name":"I C O Corp"},"object":{"type":"mine","id":"1300372","name":"Ico Osko #4 Strip"},"validFrom":"1974-05-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1300372|P02422|1974-05-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02081","name":"Wolfe C L"},"object":{"type":"mine","id":"1300372","name":"Ico Osko #4 Strip"},"validFrom":"1974-05-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1300372|C02081|1974-05-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02081","name":"Wolfe C L"},"object":{"type":"operator","id":"P02422","name":"I C O Corp"},"validFrom":"1974-05-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"1300372","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1300372|P02422|1974-05-01|C02081|1974-05-01|57413"}}],"coverage":{"historyRecords":2,"edgeCount":6,"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":"1979-11-05","lastDate":"1979-11-05","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":2,"firstDate":"1950-01-01","lastDate":"1974-05-01","metrics":{"recentRows":0,"currentOperatorTenures":1,"completedOperatorTenures":1},"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/1300372/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/1300372/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":"1300372","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873}}