{"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":"4402990","name":"East Stone Quarry"},"operator":{"type":"operator","id":"L00017","name":"Vulcan Materials Company"},"controller":{"type":"controller","id":"0071891","name":"Vulcan Materials Company"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00024","name":"Legacy Vulcan Corp (Form:Vulcan Materials Co)"},"object":{"type":"mine","id":"4402990","name":"East Stone Quarry"},"validFrom":"1950-01-01","validTo":"2007-11-15","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402990|M00024|1950-01-01|2007-11-15"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L02035","name":"Marty Corp"},"object":{"type":"mine","id":"4402990","name":"East Stone Quarry"},"validFrom":"1950-01-01","validTo":"1979-03-05","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402990|L02035|1950-01-01|1979-03-05"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M01252","name":"Marty Corp"},"object":{"type":"mine","id":"4402990","name":"East Stone Quarry"},"validFrom":"1950-01-01","validTo":"1979-03-05","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402990|M01252|1950-01-01|1979-03-05"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M01252","name":"Marty Corp"},"object":{"type":"operator","id":"L02035","name":"Marty Corp"},"validFrom":"1950-01-01","validTo":"1979-03-05","current":false,"derived":true,"evidenceMineId":"4402990","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402990|L02035|1950-01-01|M01252|1950-01-01|117671"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06158","name":"John W  Barnette Jr"},"object":{"type":"mine","id":"4402990","name":"East Stone Quarry"},"validFrom":"1979-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402990|M06158|1979-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L02034","name":"Big Stone Quarry Corp"},"object":{"type":"mine","id":"4402990","name":"East Stone Quarry"},"validFrom":"1979-03-06","validTo":"1985-01-17","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402990|L02034|1979-03-06|1985-01-17"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M01823","name":"David D  Willis"},"object":{"type":"mine","id":"4402990","name":"East Stone Quarry"},"validFrom":"1979-03-06","validTo":"1985-01-17","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402990|M01823|1979-03-06|1985-01-17"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M01823","name":"David D  Willis"},"object":{"type":"operator","id":"L02034","name":"Big Stone Quarry Corp"},"validFrom":"1979-03-06","validTo":"1985-01-17","current":false,"derived":true,"evidenceMineId":"4402990","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402990|L02034|1979-03-06|M01823|1979-03-06|121478"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L07750","name":"Rim Rock Quarries Inc"},"object":{"type":"mine","id":"4402990","name":"East Stone Quarry"},"validFrom":"1985-01-18","validTo":"1990-03-25","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402990|L07750|1985-01-18|1990-03-25"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06158","name":"John W  Barnette Jr"},"object":{"type":"operator","id":"L07750","name":"Rim Rock Quarries Inc"},"validFrom":"1985-01-18","validTo":"1990-03-25","current":false,"derived":true,"evidenceMineId":"4402990","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402990|L07750|1985-01-18|M06158|1979-01-01|136333"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00017","name":"Vulcan Materials Company"},"object":{"type":"mine","id":"4402990","name":"East Stone Quarry"},"validFrom":"1990-03-26","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402990|L00017|1990-03-26|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00024","name":"Legacy Vulcan Corp (Form:Vulcan Materials Co)"},"object":{"type":"operator","id":"L00017","name":"Vulcan Materials Company"},"validFrom":"1990-03-26","validTo":"2007-11-15","current":false,"derived":true,"evidenceMineId":"4402990","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402990|L00017|1990-03-26|M00024|1950-01-01|101970"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0071891","name":"Vulcan Materials Company"},"object":{"type":"mine","id":"4402990","name":"East Stone Quarry"},"validFrom":"2007-11-16","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402990|0071891|2007-11-16|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0071891","name":"Vulcan Materials Company"},"object":{"type":"operator","id":"L00017","name":"Vulcan Materials Company"},"validFrom":"2007-11-16","validTo":null,"current":true,"derived":true,"evidenceMineId":"4402990","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4402990|L00017|1990-03-26|0071891|2007-11-16|11057"}}],"coverage":{"historyRecords":5,"edgeCount":14,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4402990","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"}}