{"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":"4002031","name":"Lloyd No 1"},"operator":{"type":"operator","id":"P18019","name":"Lloyd Coal Company"},"controller":{"type":"controller","id":"C12131","name":"Chapman Jerry"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C01766","name":"Phillips Earl"},"object":{"type":"mine","id":"4002031","name":"Lloyd No 1"},"validFrom":"1970-01-10","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4002031|C01766|1970-01-10|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P02075","name":"Devonia Coal Corp"},"object":{"type":"mine","id":"4002031","name":"Lloyd No 1"},"validFrom":"1976-03-24","validTo":"1978-04-11","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4002031|P02075|1976-03-24|1978-04-11"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C01766","name":"Phillips Earl"},"object":{"type":"operator","id":"P02075","name":"Devonia Coal Corp"},"validFrom":"1976-03-24","validTo":"1978-04-11","current":false,"derived":true,"evidenceMineId":"4002031","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4002031|P02075|1976-03-24|C01766|1970-01-10|55822"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P08070","name":"Lloyd Coal Corp"},"object":{"type":"mine","id":"4002031","name":"Lloyd No 1"},"validFrom":"1978-04-12","validTo":"1981-04-04","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4002031|P08070|1978-04-12|1981-04-04"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C06505","name":"Lloyd Lonnie"},"object":{"type":"mine","id":"4002031","name":"Lloyd No 1"},"validFrom":"1978-04-12","validTo":"1981-04-04","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4002031|C06505|1978-04-12|1981-04-04"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C06505","name":"Lloyd Lonnie"},"object":{"type":"operator","id":"P08070","name":"Lloyd Coal Corp"},"validFrom":"1978-04-12","validTo":"1981-04-04","current":false,"derived":true,"evidenceMineId":"4002031","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4002031|P08070|1978-04-12|C06505|1978-04-12|72003"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P02075","name":"Devonia Coal Corp"},"object":{"type":"mine","id":"4002031","name":"Lloyd No 1"},"validFrom":"1981-04-05","validTo":"1983-06-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4002031|P02075|1981-04-05|1983-06-01"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C01766","name":"Phillips Earl"},"object":{"type":"operator","id":"P02075","name":"Devonia Coal Corp"},"validFrom":"1981-04-05","validTo":"1983-06-01","current":false,"derived":true,"evidenceMineId":"4002031","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4002031|P02075|1981-04-05|C01766|1970-01-10|55823"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P14410","name":"Lloyd Coal Corp"},"object":{"type":"mine","id":"4002031","name":"Lloyd No 1"},"validFrom":"1983-06-02","validTo":"1986-10-23","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4002031|P14410|1983-06-02|1986-10-23"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C10444","name":"Phillips Murl"},"object":{"type":"mine","id":"4002031","name":"Lloyd No 1"},"validFrom":"1983-06-02","validTo":"1986-10-23","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4002031|C10444|1983-06-02|1986-10-23"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C10444","name":"Phillips Murl"},"object":{"type":"operator","id":"P14410","name":"Lloyd Coal Corp"},"validFrom":"1983-06-02","validTo":"1986-10-23","current":false,"derived":true,"evidenceMineId":"4002031","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4002031|P14410|1983-06-02|C10444|1983-06-02|82013"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C12131","name":"Chapman Jerry"},"object":{"type":"mine","id":"4002031","name":"Lloyd No 1"},"validFrom":"1986-09-29","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4002031|C12131|1986-09-29|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P18019","name":"Lloyd Coal Company"},"object":{"type":"mine","id":"4002031","name":"Lloyd No 1"},"validFrom":"1986-10-24","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4002031|P18019|1986-10-24|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C12131","name":"Chapman Jerry"},"object":{"type":"operator","id":"P18019","name":"Lloyd Coal Company"},"validFrom":"1986-10-24","validTo":null,"current":true,"derived":true,"evidenceMineId":"4002031","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4002031|P18019|1986-10-24|C12131|1986-09-29|86177"}}],"coverage":{"historyRecords":5,"edgeCount":14,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4002031","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"}}