{"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":"1511702","name":"Central Shop"},"operator":{"type":"operator","id":"P21731","name":"Costain Coal Inc"},"controller":{"type":"controller","id":"C02496","name":"Costain Group PLC"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02496","name":"Costain Group PLC"},"object":{"type":"mine","id":"1511702","name":"Central Shop"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1511702|C02496|1950-01-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C03300","name":"Pyro Energy Corp"},"object":{"type":"mine","id":"1511702","name":"Central Shop"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1511702|C03300|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P04007","name":"Pyro Mining Company"},"object":{"type":"mine","id":"1511702","name":"Central Shop"},"validFrom":"1978-12-01","validTo":"1982-01-24","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1511702|P04007|1978-12-01|1982-01-24"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C03300","name":"Pyro Energy Corp"},"object":{"type":"operator","id":"P04007","name":"Pyro Mining Company"},"validFrom":"1978-12-01","validTo":"1982-01-24","current":false,"derived":true,"evidenceMineId":"1511702","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1511702|P04007|1978-12-01|C03300|1950-01-01|62430"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P21731","name":"Costain Coal Inc"},"object":{"type":"mine","id":"1511702","name":"Central Shop"},"validFrom":"1982-01-25","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1511702|P21731|1982-01-25|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02496","name":"Costain Group PLC"},"object":{"type":"operator","id":"P21731","name":"Costain Coal Inc"},"validFrom":"1982-01-25","validTo":null,"current":true,"derived":true,"evidenceMineId":"1511702","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1511702|P21731|1982-01-25|C02496|1950-01-01|58687"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1511702","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"}}