{"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":"0801229","name":"ONEAL QUARRY"},"operator":{"type":"operator","id":"0074784","name":"Triple T Construction Products, LLC"},"controller":{"type":"controller","id":"0062771","name":"George  Thompson"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00174","name":"Martin Marietta Materials Inc"},"object":{"type":"mine","id":"0801229","name":"ONEAL QUARRY"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0801229|M00174|1950-01-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00545","name":"Luther M White Trust et al"},"object":{"type":"mine","id":"0801229","name":"ONEAL QUARRY"},"validFrom":"1980-04-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0801229|M00545|1980-04-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L04114","name":"White Construction Company Inc"},"object":{"type":"mine","id":"0801229","name":"ONEAL QUARRY"},"validFrom":"1994-04-01","validTo":"2002-07-17","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0801229|L04114|1994-04-01|2002-07-17"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00545","name":"Luther M White Trust et al"},"object":{"type":"operator","id":"L04114","name":"White Construction Company Inc"},"validFrom":"1994-04-01","validTo":"2002-07-17","current":false,"derived":true,"evidenceMineId":"0801229","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0801229|L04114|1994-04-01|M00545|1980-04-01|113044"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L16197","name":"Martin Marietta Materials"},"object":{"type":"mine","id":"0801229","name":"ONEAL QUARRY"},"validFrom":"2002-07-18","validTo":"2006-07-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0801229|L16197|2002-07-18|2006-07-09"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00174","name":"Martin Marietta Materials Inc"},"object":{"type":"operator","id":"L16197","name":"Martin Marietta Materials"},"validFrom":"2002-07-18","validTo":"2006-07-09","current":false,"derived":true,"evidenceMineId":"0801229","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0801229|L16197|2002-07-18|M00174|1950-01-01|105681"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0074784","name":"Triple T Construction Products, LLC"},"object":{"type":"mine","id":"0801229","name":"ONEAL QUARRY"},"validFrom":"2006-07-10","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0801229|0074784|2006-07-10|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0062771","name":"George  Thompson"},"object":{"type":"mine","id":"0801229","name":"ONEAL QUARRY"},"validFrom":"2006-07-10","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0801229|0062771|2006-07-10|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0062771","name":"George  Thompson"},"object":{"type":"operator","id":"0074784","name":"Triple T Construction Products, LLC"},"validFrom":"2006-07-10","validTo":null,"current":true,"derived":true,"evidenceMineId":"0801229","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0801229|0074784|2006-07-10|0062771|2006-07-10|8574"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0801229","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"}}