{"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":"2026-10-17T05:35:58.500035+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":"0102940","name":"Universal #1"},"operator":{"type":"operator","id":"P23655","name":"Swasher Inc"},"controller":{"type":"controller","id":"C14553","name":"Otis  Skinner"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P21763","name":"Skinner Coal Washer Inc"},"object":{"type":"mine","id":"0102940","name":"Universal #1"},"validFrom":"1992-01-01","validTo":"1996-01-24","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0102940|P21763|1992-01-01|1996-01-24"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14553","name":"Otis  Skinner"},"object":{"type":"mine","id":"0102940","name":"Universal #1"},"validFrom":"1992-01-01","validTo":"1996-01-24","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0102940|C14553|1992-01-01|1996-01-24"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14553","name":"Otis  Skinner"},"object":{"type":"operator","id":"P21763","name":"Skinner Coal Washer Inc"},"validFrom":"1992-01-01","validTo":"1996-01-24","current":false,"derived":true,"evidenceMineId":"0102940","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0102940|P21763|1992-01-01|C14553|1992-01-01|93288"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14858","name":"Ronald S  Bryant et al"},"object":{"type":"mine","id":"0102940","name":"Universal #1"},"validFrom":"1994-05-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0102940|C14858|1994-05-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22783","name":"Colonial Contracting Inc"},"object":{"type":"mine","id":"0102940","name":"Universal #1"},"validFrom":"1996-01-25","validTo":"1996-12-16","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0102940|P22783|1996-01-25|1996-12-16"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14858","name":"Ronald S  Bryant et al"},"object":{"type":"operator","id":"P22783","name":"Colonial Contracting Inc"},"validFrom":"1996-01-25","validTo":"1996-12-16","current":false,"derived":true,"evidenceMineId":"0102940","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0102940|P22783|1996-01-25|C14858|1994-05-01|94115"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P23655","name":"Swasher Inc"},"object":{"type":"mine","id":"0102940","name":"Universal #1"},"validFrom":"1996-12-17","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0102940|P23655|1996-12-17|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14553","name":"Otis  Skinner"},"object":{"type":"mine","id":"0102940","name":"Universal #1"},"validFrom":"1996-12-17","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0102940|C14553|1996-12-17|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14553","name":"Otis  Skinner"},"object":{"type":"operator","id":"P23655","name":"Swasher Inc"},"validFrom":"1996-12-17","validTo":null,"current":true,"derived":true,"evidenceMineId":"0102940","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0102940|P23655|1996-12-17|C14553|1996-12-17|93289"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0102940","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}