{"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":"1513617","name":"No 1"},"operator":{"type":"operator","id":"P14259","name":"T & R Coal Company"},"controller":{"type":"controller","id":"C10375","name":"Lawson Ronnie"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P13548","name":"Three S Coal Company"},"object":{"type":"mine","id":"1513617","name":"No 1"},"validFrom":"1982-07-01","validTo":"1983-07-18","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513617|P13548|1982-07-01|1983-07-18"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C09891","name":"Patterson Bill Et Al"},"object":{"type":"mine","id":"1513617","name":"No 1"},"validFrom":"1982-07-01","validTo":"1983-07-18","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513617|C09891|1982-07-01|1983-07-18"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C09891","name":"Patterson Bill Et Al"},"object":{"type":"operator","id":"P13548","name":"Three S Coal Company"},"validFrom":"1982-07-01","validTo":"1983-07-18","current":false,"derived":true,"evidenceMineId":"1513617","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513617|P13548|1982-07-01|C09891|1982-07-01|80827"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C10375","name":"Lawson Ronnie Et Al"},"object":{"type":"mine","id":"1513617","name":"No 1"},"validFrom":"1983-04-20","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513617|C10375|1983-04-20|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P14259","name":"T & R Coal Company"},"object":{"type":"mine","id":"1513617","name":"No 1"},"validFrom":"1983-07-19","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513617|P14259|1983-07-19|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C10375","name":"Lawson Ronnie Et Al"},"object":{"type":"operator","id":"P14259","name":"T & R Coal Company"},"validFrom":"1983-07-19","validTo":null,"current":true,"derived":true,"evidenceMineId":"1513617","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513617|P14259|1983-07-19|C10375|1983-04-20|81868"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1513617","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"}}