{"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":"2026-10-17T05:35:58.500035+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":"3605451","name":"L & E Buck Stripping"},"operator":{"type":"operator","id":"P20350","name":"L & E Coal Company"},"controller":{"type":"controller","id":"C05693","name":"Thomas J  Lynott"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P12243","name":"L & E Coal Company"},"object":{"type":"mine","id":"3605451","name":"L & E Buck Stripping"},"validFrom":"1950-01-01","validTo":"1989-03-19","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3605451|P12243|1950-01-01|1989-03-19"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C09068","name":"John J  Lynott"},"object":{"type":"mine","id":"3605451","name":"L & E Buck Stripping"},"validFrom":"1950-01-01","validTo":"1989-03-19","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3605451|C09068|1950-01-01|1989-03-19"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C09068","name":"John J  Lynott"},"object":{"type":"operator","id":"P12243","name":"L & E Coal Company"},"validFrom":"1950-01-01","validTo":"1989-03-19","current":false,"derived":true,"evidenceMineId":"3605451","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3605451|P12243|1950-01-01|C09068|1950-01-01|78856"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P20350","name":"L & E Coal Company"},"object":{"type":"mine","id":"3605451","name":"L & E Buck Stripping"},"validFrom":"1989-03-20","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3605451|P20350|1989-03-20|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C05693","name":"Thomas J  Lynott"},"object":{"type":"mine","id":"3605451","name":"L & E Buck Stripping"},"validFrom":"1989-03-20","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3605451|C05693|1989-03-20|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C05693","name":"Thomas J  Lynott"},"object":{"type":"operator","id":"P20350","name":"L & E Coal Company"},"validFrom":"1989-03-20","validTo":null,"current":true,"derived":true,"evidenceMineId":"3605451","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3605451|P20350|1989-03-20|C05693|1989-03-20|69618"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3605451","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}