{"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":"4703982","name":"Hayton Quarry"},"operator":{"type":"operator","id":"L03563","name":"Buechel Stone Corp."},"controller":{"type":"controller","id":"0189781","name":"Shaun  Buechel; Dominique  Von Wald; Michael  Buechel"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M02858","name":"Timothy A  Buechel"},"object":{"type":"mine","id":"4703982","name":"Hayton Quarry"},"validFrom":"1979-01-01","validTo":"2016-12-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4703982|M02858|1979-01-01|2016-12-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0135381","name":"Scott  Buechel et al"},"object":{"type":"mine","id":"4703982","name":"Hayton Quarry"},"validFrom":"2017-01-01","validTo":"2025-01-07","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4703982|0135381|2017-01-01|2025-01-07"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0189781","name":"Shaun  Buechel"},"object":{"type":"mine","id":"4703982","name":"Hayton Quarry"},"validFrom":"2025-01-08","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4703982|0189781|2025-01-08|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L03563","name":"Buechel Stone Corp."},"object":{"type":"mine","id":"4703982","name":"Hayton Quarry"},"validFrom":"2025-07-02","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4703982|L03563|2025-07-02|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0135381","name":"Scott  Buechel et al"},"object":{"type":"operator","id":"L03563","name":"Buechel Stone Corp."},"validFrom":"2025-07-02","validTo":"2025-01-07","current":false,"derived":true,"evidenceMineId":"4703982","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4703982|L03563|2025-07-02|0135381|2017-01-01|27218"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0135381","name":"Michael  Buechel et al"},"object":{"type":"operator","id":"L03563","name":"Buechel Stone Corp."},"validFrom":"2025-07-02","validTo":"2025-01-07","current":false,"derived":true,"evidenceMineId":"4703982","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4703982|L03563|2025-07-02|0135381|2017-01-01|27219"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0189781","name":"Shaun  Buechel"},"object":{"type":"operator","id":"L03563","name":"Buechel Stone Corp."},"validFrom":"2025-07-02","validTo":null,"current":true,"derived":true,"evidenceMineId":"4703982","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4703982|L03563|2025-07-02|0189781|2025-01-08|40425"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0189781","name":"Dominique  Von Wald"},"object":{"type":"operator","id":"L03563","name":"Buechel Stone Corp."},"validFrom":"2025-07-02","validTo":null,"current":true,"derived":true,"evidenceMineId":"4703982","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4703982|L03563|2025-07-02|0189781|2025-01-08|40426"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0189781","name":"Michael  Buechel"},"object":{"type":"operator","id":"L03563","name":"Buechel Stone Corp."},"validFrom":"2025-07-02","validTo":null,"current":true,"derived":true,"evidenceMineId":"4703982","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4703982|L03563|2025-07-02|0189781|2025-01-08|40427"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M02858","name":"Timothy A  Buechel"},"object":{"type":"operator","id":"L03563","name":"Buechel Stone Corp."},"validFrom":"2025-07-02","validTo":"2016-12-31","current":false,"derived":true,"evidenceMineId":"4703982","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4703982|L03563|2025-07-02|M02858|1979-01-01|127176"}}],"coverage":{"historyRecords":6,"edgeCount":10,"intervalAnomalies":3,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4703982","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"}}