{"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":"2026-10-13T11:19:05.459773+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":"1301456","name":"Greenley Pit"},"operator":{"type":"operator","id":"L06784","name":"Quality Ready Mix Company"},"controller":{"type":"controller","id":"M05405","name":"Shirey Craig W"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L06783","name":"Quality Ready Mix Company"},"object":{"type":"mine","id":"1301456","name":"Greenley Pit"},"validFrom":"1950-01-01","validTo":"1983-09-20","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1301456|L06783|1950-01-01|1983-09-20"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M05404","name":"Slife Dewayne"},"object":{"type":"mine","id":"1301456","name":"Greenley Pit"},"validFrom":"1950-01-01","validTo":"1983-09-20","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1301456|M05404|1950-01-01|1983-09-20"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M05404","name":"Slife Dewayne"},"object":{"type":"operator","id":"L06783","name":"Quality Ready Mix Company"},"validFrom":"1950-01-01","validTo":"1983-09-20","current":false,"derived":true,"evidenceMineId":"1301456","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1301456|L06783|1950-01-01|M05404|1950-01-01|134498"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L06784","name":"Quality Ready Mix Company"},"object":{"type":"mine","id":"1301456","name":"Greenley Pit"},"validFrom":"1983-09-21","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1301456|L06784|1983-09-21|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M05405","name":"Shirey Craig W"},"object":{"type":"mine","id":"1301456","name":"Greenley Pit"},"validFrom":"1983-09-21","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1301456|M05405|1983-09-21|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M05405","name":"Shirey Craig W"},"object":{"type":"operator","id":"L06784","name":"Quality Ready Mix Company"},"validFrom":"1983-09-21","validTo":null,"current":true,"derived":true,"evidenceMineId":"1301456","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1301456|L06784|1983-09-21|M05405|1983-09-21|134499"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1301456","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}