{"data":{"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":"2026-10-18T09:31:49.615908+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":"3601793","name":"Birnen Coal Company Incorporated"},"operator":{"type":"operator","id":"P13026","name":"Birnen Coal Company Inc"},"controller":{"type":"controller","id":"C04124","name":"Petersville Sleigh Ltd"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-18T09:31:49.615908+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P00471","name":"Blue Bell Enterprises"},"object":{"type":"mine","id":"3601793","name":"Birnen Coal Company Incorporated"},"validFrom":"1950-01-01","validTo":"1976-12-06","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3601793|P00471|1950-01-01|1976-12-06"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00308","name":"Butcavage John W"},"object":{"type":"mine","id":"3601793","name":"Birnen Coal Company Incorporated"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3601793|C00308|1950-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00308","name":"Butcavage John W"},"object":{"type":"operator","id":"P00471","name":"Blue Bell Enterprises"},"validFrom":"1950-01-01","validTo":"1976-12-06","current":false,"derived":true,"evidenceMineId":"3601793","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3601793|P00471|1950-01-01|C00308|1950-01-01|45993"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02917","name":"Breslin John"},"object":{"type":"mine","id":"3601793","name":"Birnen Coal Company Incorporated"},"validFrom":"1976-10-08","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3601793|C02917|1976-10-08|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P03537","name":"Con Eng Coal Corp Inc"},"object":{"type":"mine","id":"3601793","name":"Birnen Coal Company Incorporated"},"validFrom":"1976-12-07","validTo":"1977-02-22","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3601793|P03537|1976-12-07|1977-02-22"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02917","name":"Breslin John"},"object":{"type":"operator","id":"P03537","name":"Con Eng Coal Corp Inc"},"validFrom":"1976-12-07","validTo":"1977-02-22","current":false,"derived":true,"evidenceMineId":"3601793","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3601793|P03537|1976-12-07|C02917|1976-10-08|61248"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P05015","name":"Birnen Coal Company Inc"},"object":{"type":"mine","id":"3601793","name":"Birnen Coal Company Incorporated"},"validFrom":"1977-02-23","validTo":"1980-07-10","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3601793|P05015|1977-02-23|1980-07-10"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C04147","name":"Mucklow Russell"},"object":{"type":"mine","id":"3601793","name":"Birnen Coal Company Incorporated"},"validFrom":"1977-02-23","validTo":"1980-07-10","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3601793|C04147|1977-02-23|1980-07-10"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C04147","name":"Mucklow Russell"},"object":{"type":"operator","id":"P05015","name":"Birnen Coal Company Inc"},"validFrom":"1977-02-23","validTo":"1980-07-10","current":false,"derived":true,"evidenceMineId":"3601793","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3601793|P05015|1977-02-23|C04147|1977-02-23|64968"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C04124","name":"Petersville Sleigh Ltd Et Al"},"object":{"type":"mine","id":"3601793","name":"Birnen Coal Company Incorporated"},"validFrom":"1980-07-07","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3601793|C04124|1980-07-07|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P13026","name":"Birnen Coal Company Inc"},"object":{"type":"mine","id":"3601793","name":"Birnen Coal Company Incorporated"},"validFrom":"1980-07-11","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3601793|P13026|1980-07-11|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C04124","name":"Petersville Sleigh Ltd Et Al"},"object":{"type":"operator","id":"P13026","name":"Birnen Coal Company Inc"},"validFrom":"1980-07-11","validTo":null,"current":true,"derived":true,"evidenceMineId":"3601793","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3601793|P13026|1980-07-11|C04124|1980-07-07|64864"}}],"coverage":{"historyRecords":4,"edgeCount":12,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3601793","dataSource":"postgres","snapshotId":"2026-10-18T09:31:49.615908+00:00","completedAt":"2026-10-18T09:31:49.615Z","sourceCount":20,"totalRows":17915666,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}