{"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":"2026-10-18T09:31:49.615908+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":"4801512","name":"Spomer #1"},"operator":{"type":"operator","id":"0067983","name":"SPOMER CONSTRUCTION CO., INC."},"controller":{"type":"controller","id":"0057049","name":"Carl E  Spomer"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-18T09:31:49.615908+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L14134","name":"Lamax Construction Inc"},"object":{"type":"mine","id":"4801512","name":"Spomer #1"},"validFrom":"1994-12-01","validTo":"2014-10-21","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4801512|L14134|1994-12-01|2014-10-21"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M10802","name":"Carol  Kestner"},"object":{"type":"mine","id":"4801512","name":"Spomer #1"},"validFrom":"1994-12-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4801512|M10802|1994-12-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M10802","name":"Carol  Kestner"},"object":{"type":"operator","id":"L14134","name":"Lamax Construction Inc"},"validFrom":"1994-12-01","validTo":"2014-10-21","current":false,"derived":true,"evidenceMineId":"4801512","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4801512|L14134|1994-12-01|M10802|1994-12-01|150065"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0057049","name":"Carl E  Spomer"},"object":{"type":"mine","id":"4801512","name":"Spomer #1"},"validFrom":"2006-02-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4801512|0057049|2006-02-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0067983","name":"SPOMER CONSTRUCTION CO., INC."},"object":{"type":"mine","id":"4801512","name":"Spomer #1"},"validFrom":"2014-10-22","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4801512|0067983|2014-10-22|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0057049","name":"Carl E  Spomer"},"object":{"type":"operator","id":"0067983","name":"SPOMER CONSTRUCTION CO., INC."},"validFrom":"2014-10-22","validTo":null,"current":true,"derived":true,"evidenceMineId":"4801512","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4801512|0067983|2014-10-22|0057049|2006-02-01|7556"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4801512","dataSource":"postgres","snapshotId":"2026-10-18T09:31:49.615908+00:00","completedAt":"2026-10-18T09:31:49.615Z","sourceCount":20,"totalRows":17915666,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}