{"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":"4405360","name":"No 1 Prep Plant"},"operator":{"type":"operator","id":"P11995","name":"Staniford Coal Inc"},"controller":{"type":"controller","id":"C14305","name":"Bill G  Humphreys"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P10163","name":"Bee Coal Processing Inc"},"object":{"type":"mine","id":"4405360","name":"No 1 Prep Plant"},"validFrom":"1980-01-01","validTo":"1981-03-15","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405360|P10163|1980-01-01|1981-03-15"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C07796","name":"Bright Tommy N-Carter C Long Et Al"},"object":{"type":"mine","id":"4405360","name":"No 1 Prep Plant"},"validFrom":"1980-01-01","validTo":"1981-03-15","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405360|C07796|1980-01-01|1981-03-15"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C07796","name":"Bright Tommy N-Carter C Long Et Al"},"object":{"type":"operator","id":"P10163","name":"Bee Coal Processing Inc"},"validFrom":"1980-01-01","validTo":"1981-03-15","current":false,"derived":true,"evidenceMineId":"4405360","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405360|P10163|1980-01-01|C07796|1980-01-01|75716"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P11995","name":"Staniford Coal Inc"},"object":{"type":"mine","id":"4405360","name":"No 1 Prep Plant"},"validFrom":"1981-03-16","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405360|P11995|1981-03-16|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14305","name":"Bill G  Humphreys"},"object":{"type":"mine","id":"4405360","name":"No 1 Prep Plant"},"validFrom":"1981-03-16","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405360|C14305|1981-03-16|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14305","name":"Bill G  Humphreys"},"object":{"type":"operator","id":"P11995","name":"Staniford Coal Inc"},"validFrom":"1981-03-16","validTo":null,"current":true,"derived":true,"evidenceMineId":"4405360","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405360|P11995|1981-03-16|C14305|1981-03-16|92447"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4405360","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"}}