{"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":"4103561","name":"HANSON QUARRY"},"operator":{"type":"operator","id":"L13158","name":"Capitol Area Resources"},"controller":{"type":"controller","id":"M08424","name":"Howard  Yocham"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M08424","name":"Howard  Yocham"},"object":{"type":"mine","id":"4103561","name":"HANSON QUARRY"},"validFrom":"1987-12-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4103561|M08424|1987-12-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L10874","name":"Austin Cut Stone Inc"},"object":{"type":"mine","id":"4103561","name":"HANSON QUARRY"},"validFrom":"1989-05-01","validTo":"1993-07-21","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4103561|L10874|1989-05-01|1993-07-21"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M08424","name":"Howard  Yocham"},"object":{"type":"operator","id":"L10874","name":"Austin Cut Stone Inc"},"validFrom":"1989-05-01","validTo":"1993-07-21","current":false,"derived":true,"evidenceMineId":"4103561","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4103561|L10874|1989-05-01|M08424|1987-12-01|143332"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L13158","name":"Capitol Area Resources"},"object":{"type":"mine","id":"4103561","name":"HANSON QUARRY"},"validFrom":"1993-07-22","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4103561|L13158|1993-07-22|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M10054","name":"Paul  Schartz"},"object":{"type":"mine","id":"4103561","name":"HANSON QUARRY"},"validFrom":"1993-07-22","validTo":"2008-12-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4103561|M10054|1993-07-22|2008-12-31"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M10054","name":"Paul  Schartz"},"object":{"type":"operator","id":"L13158","name":"Capitol Area Resources"},"validFrom":"1993-07-22","validTo":"2008-12-31","current":false,"derived":true,"evidenceMineId":"4103561","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4103561|L13158|1993-07-22|M10054|1993-07-22|148271"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M08424","name":"Howard  Yocham"},"object":{"type":"mine","id":"4103561","name":"HANSON QUARRY"},"validFrom":"2009-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4103561|M08424|2009-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M08424","name":"Howard  Yocham"},"object":{"type":"operator","id":"L13158","name":"Capitol Area Resources"},"validFrom":"2009-01-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"4103561","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4103561|L13158|1993-07-22|M08424|2009-01-01|143334"}}],"coverage":{"historyRecords":3,"edgeCount":8,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4103561","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"}}