{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"4800970","name":"Kaycee/Brock Mines","status":"Abandoned","status_date":"1985-05-01","mine_type":"Surface","coal_metal":"M","commodity":"Common Clays NEC","state":"WY","county":"Johnson","nearest_town":"","operator_id":"L00443","operator_name":"Kaycee Bentonite Corp","controller_id":"M00364","controller_name":"T A  Thorson","district":"C09","office":"Gillette WY Field Office","employees":0,"latitude":null,"longitude":null},"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":"4800970","name":"Kaycee/Brock Mines"},"operator":{"type":"operator","id":"L00443","name":"Kaycee Bentonite Corp"},"controller":{"type":"controller","id":"M00364","name":"T A  Thorson"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00372","name":"Benton Clay Company"},"object":{"type":"mine","id":"4800970","name":"Kaycee/Brock Mines"},"validFrom":"1950-01-01","validTo":"1980-09-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4800970|L00372|1950-01-01|1980-09-30"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00308","name":"Yara Engineering Corp"},"object":{"type":"mine","id":"4800970","name":"Kaycee/Brock Mines"},"validFrom":"1950-01-01","validTo":"1980-12-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4800970|M00308|1950-01-01|1980-12-03"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00308","name":"Yara Engineering Corp"},"object":{"type":"operator","id":"L00372","name":"Benton Clay Company"},"validFrom":"1950-01-01","validTo":"1980-09-30","current":false,"derived":true,"evidenceMineId":"4800970","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4800970|L00372|1950-01-01|M00308|1950-01-01|109245"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00364","name":"T A  Thorson"},"object":{"type":"mine","id":"4800970","name":"Kaycee/Brock Mines"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4800970|M00364|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L05953","name":"Benton Clay Company"},"object":{"type":"mine","id":"4800970","name":"Kaycee/Brock Mines"},"validFrom":"1980-10-01","validTo":"1984-06-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4800970|L05953|1980-10-01|1984-06-14"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M01375","name":"Asea Brown Boveri Ltd (ABB)"},"object":{"type":"mine","id":"4800970","name":"Kaycee/Brock Mines"},"validFrom":"1980-10-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4800970|M01375|1980-10-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M01375","name":"Asea Brown Boveri Ltd (ABB)"},"object":{"type":"operator","id":"L05953","name":"Benton Clay Company"},"validFrom":"1980-10-01","validTo":"1984-06-14","current":false,"derived":true,"evidenceMineId":"4800970","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4800970|L05953|1980-10-01|M01375|1980-10-01|118280"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00443","name":"Kaycee Bentonite Corp"},"object":{"type":"mine","id":"4800970","name":"Kaycee/Brock Mines"},"validFrom":"1984-06-15","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4800970|L00443|1984-06-15|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00364","name":"T A  Thorson"},"object":{"type":"operator","id":"L00443","name":"Kaycee Bentonite Corp"},"validFrom":"1984-06-15","validTo":null,"current":true,"derived":true,"evidenceMineId":"4800970","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4800970|L00443|1984-06-15|M00364|1950-01-01|110307"}}],"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":"1985-05-01","lastDate":"1985-05-01","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":"1950-01-01","lastDate":"1984-06-15","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/4800970/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/4800970/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":"4800970","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}