{"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":"1513955","name":"No 1 Surface Mine"},"operator":{"type":"operator","id":"P14231","name":"C B S S Mining Company"},"controller":{"type":"controller","id":"C08346","name":"Sanders Ronald"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P14118","name":"Ed Clemons Enterprises"},"object":{"type":"mine","id":"1513955","name":"No 1 Surface Mine"},"validFrom":"1983-02-01","validTo":"1983-03-23","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1513955|P14118|1983-02-01|1983-03-23"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C10286","name":"Clemons Ed"},"object":{"type":"mine","id":"1513955","name":"No 1 Surface Mine"},"validFrom":"1983-02-01","validTo":"1983-03-23","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1513955|C10286|1983-02-01|1983-03-23"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C10286","name":"Clemons Ed"},"object":{"type":"operator","id":"P14118","name":"Ed Clemons Enterprises"},"validFrom":"1983-02-01","validTo":"1983-03-23","current":false,"derived":true,"evidenceMineId":"1513955","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1513955|P14118|1983-02-01|C10286|1983-02-01|81654"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P14231","name":"C B S S Mining Company"},"object":{"type":"mine","id":"1513955","name":"No 1 Surface Mine"},"validFrom":"1983-03-24","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1513955|P14231|1983-03-24|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C08346","name":"Sanders Ronald"},"object":{"type":"mine","id":"1513955","name":"No 1 Surface Mine"},"validFrom":"1983-03-24","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1513955|C08346|1983-03-24|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C08346","name":"Sanders Ronald"},"object":{"type":"operator","id":"P14231","name":"C B S S Mining Company"},"validFrom":"1983-03-24","validTo":null,"current":true,"derived":true,"evidenceMineId":"1513955","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1513955|P14231|1983-03-24|C08346|1983-03-24|77100"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1513955","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"}}