{"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":"3003038","name":"GRIPPEE QUARRY #4 SOUTH"},"operator":{"type":"operator","id":"L00947","name":"HELDEBERG BLUESTONE & MARBLE INC"},"controller":{"type":"controller","id":"0133301","name":"Eleanor A  Giebitz"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00807","name":"Paul F  Giebitz et al"},"object":{"type":"mine","id":"3003038","name":"GRIPPEE QUARRY #4 SOUTH"},"validFrom":"1950-01-01","validTo":"2016-12-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3003038|M00807|1950-01-01|2016-12-31"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00947","name":"Heldeberg Bluestone & Marble Inc"},"object":{"type":"mine","id":"3003038","name":"GRIPPEE QUARRY #4 SOUTH"},"validFrom":"1992-03-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3003038|L00947|1992-03-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00807","name":"Paul F  Giebitz et al"},"object":{"type":"operator","id":"L00947","name":"Heldeberg Bluestone & Marble Inc"},"validFrom":"1992-03-01","validTo":"2016-12-31","current":false,"derived":true,"evidenceMineId":"3003038","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3003038|L00947|1992-03-01|M00807|1950-01-01|114906"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0133301","name":"Eleanor A  Giebitz"},"object":{"type":"mine","id":"3003038","name":"GRIPPEE QUARRY #4 SOUTH"},"validFrom":"2017-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3003038|0133301|2017-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0133301","name":"Eleanor A  Giebitz"},"object":{"type":"operator","id":"L00947","name":"Heldeberg Bluestone & Marble Inc"},"validFrom":"2017-01-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"3003038","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3003038|L00947|1992-03-01|0133301|2017-01-01|26806"}}],"coverage":{"historyRecords":2,"edgeCount":5,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3003038","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"}}