{"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":"4503441","name":"A & A  Rock Inc."},"operator":{"type":"operator","id":"0157893","name":"A & A Rock Inc"},"controller":{"type":"controller","id":"0141861","name":"Derek C  Adamire"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L17355","name":"Andersen & Sons Gravel"},"object":{"type":"mine","id":"4503441","name":"A & A  Rock Inc."},"validFrom":"2000-05-01","validTo":"2018-05-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4503441|L17355|2000-05-01|2018-05-30"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M13234","name":"Andrew  Andersen  et al"},"object":{"type":"mine","id":"4503441","name":"A & A  Rock Inc."},"validFrom":"2000-05-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4503441|M13234|2000-05-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M13234","name":"Andrew  Andersen  et al"},"object":{"type":"operator","id":"L17355","name":"Andersen & Sons Gravel"},"validFrom":"2000-05-01","validTo":"2018-05-30","current":false,"derived":true,"evidenceMineId":"4503441","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4503441|L17355|2000-05-01|M13234|2000-05-01|155824"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M13234","name":"Eric  Andersen  et al"},"object":{"type":"operator","id":"L17355","name":"Andersen & Sons Gravel"},"validFrom":"2000-05-01","validTo":"2018-05-30","current":false,"derived":true,"evidenceMineId":"4503441","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4503441|L17355|2000-05-01|M13234|2000-05-01|155825"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0157893","name":"A & A Rock Inc"},"object":{"type":"mine","id":"4503441","name":"A & A  Rock Inc."},"validFrom":"2018-05-31","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4503441|0157893|2018-05-31|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0141861","name":"Derek C  Adamire"},"object":{"type":"mine","id":"4503441","name":"A & A  Rock Inc."},"validFrom":"2018-05-31","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4503441|0141861|2018-05-31|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0141861","name":"Derek C  Adamire"},"object":{"type":"operator","id":"0157893","name":"A & A Rock Inc"},"validFrom":"2018-05-31","validTo":null,"current":true,"derived":true,"evidenceMineId":"4503441","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4503441|0157893|2018-05-31|0141861|2018-05-31|28676"}}],"coverage":{"historyRecords":3,"edgeCount":7,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4503441","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"}}