{"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":"3301438","name":"SHELLY MATERIALS INC DRESDEN PL"},"operator":{"type":"operator","id":"L17597","name":"Shelly Materials Inc"},"controller":{"type":"controller","id":"M06183","name":"CRH PLC"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00970","name":"Shelly Company"},"object":{"type":"mine","id":"3301438","name":"SHELLY MATERIALS INC DRESDEN PL"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3301438|M00970|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L01748","name":"Cox Gravel Company Inc"},"object":{"type":"mine","id":"3301438","name":"SHELLY MATERIALS INC DRESDEN PL"},"validFrom":"1950-01-01","validTo":"1991-09-22","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3301438|L01748|1950-01-01|1991-09-22"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M01572","name":"Richard  Cox Jr"},"object":{"type":"mine","id":"3301438","name":"SHELLY MATERIALS INC DRESDEN PL"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3301438|M01572|1950-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M01572","name":"Richard  Cox Jr"},"object":{"type":"operator","id":"L01748","name":"Cox Gravel Company Inc"},"validFrom":"1950-01-01","validTo":"1991-09-22","current":false,"derived":true,"evidenceMineId":"3301438","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3301438|L01748|1950-01-01|M01572|1950-01-01|119311"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L15751","name":"Shelly Materials Inc"},"object":{"type":"mine","id":"3301438","name":"SHELLY MATERIALS INC DRESDEN PL"},"validFrom":"1991-09-23","validTo":"2000-02-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3301438|L15751|1991-09-23|2000-02-29"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00970","name":"Shelly Company"},"object":{"type":"operator","id":"L15751","name":"Shelly Materials Inc"},"validFrom":"1991-09-23","validTo":"2000-02-29","current":false,"derived":true,"evidenceMineId":"3301438","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3301438|L15751|1991-09-23|M00970|1950-01-01|116221"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L17597","name":"Shelly Materials Inc"},"object":{"type":"mine","id":"3301438","name":"SHELLY MATERIALS INC DRESDEN PL"},"validFrom":"2000-03-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3301438|L17597|2000-03-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06183","name":"CRH PLC"},"object":{"type":"mine","id":"3301438","name":"SHELLY MATERIALS INC DRESDEN PL"},"validFrom":"2000-03-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3301438|M06183|2000-03-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06183","name":"CRH PLC"},"object":{"type":"operator","id":"L17597","name":"Shelly Materials Inc"},"validFrom":"2000-03-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"3301438","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3301438|L17597|2000-03-01|M06183|2000-03-01|136819"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3301438","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"}}