{"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":"4606244","name":"Surface Mine #204"},"operator":{"type":"operator","id":"P19480","name":"Leckie Smokeless Coal Company"},"controller":{"type":"controller","id":"C13374","name":"Joseph C  Turley III"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P11506","name":"Clear Creek Land Company Inc"},"object":{"type":"mine","id":"4606244","name":"Surface Mine #204"},"validFrom":"1980-10-01","validTo":"1992-06-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4606244|P11506|1980-10-01|1992-06-03"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C08620","name":"Cornelius Barbara Jo"},"object":{"type":"mine","id":"4606244","name":"Surface Mine #204"},"validFrom":"1980-10-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4606244|C08620|1980-10-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C08620","name":"Cornelius Barbara Jo"},"object":{"type":"operator","id":"P11506","name":"Clear Creek Land Company Inc"},"validFrom":"1980-10-01","validTo":"1992-06-03","current":false,"derived":true,"evidenceMineId":"4606244","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4606244|P11506|1980-10-01|C08620|1980-10-01|77808"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C13374","name":"Joseph C  Turley III et al"},"object":{"type":"mine","id":"4606244","name":"Surface Mine #204"},"validFrom":"1987-10-15","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4606244|C13374|1987-10-15|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P19480","name":"Leckie Smokeless Coal Company"},"object":{"type":"mine","id":"4606244","name":"Surface Mine #204"},"validFrom":"1992-06-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4606244|P19480|1992-06-04|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C13374","name":"Joseph C  Turley III et al"},"object":{"type":"operator","id":"P19480","name":"Leckie Smokeless Coal Company"},"validFrom":"1992-06-04","validTo":null,"current":true,"derived":true,"evidenceMineId":"4606244","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4606244|P19480|1992-06-04|C13374|1987-10-15|89457"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4606244","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"}}