{"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":"4606627","name":"Mine #2-A"},"operator":{"type":"operator","id":"P21471","name":"Abc Coal Company Inc"},"controller":{"type":"controller","id":"C14402","name":"Daniels Danny B"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02807","name":"Cline Larry"},"object":{"type":"mine","id":"4606627","name":"Mine #2-A"},"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":"4606627|C02807|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P03389","name":"A B C Coal Company Inc"},"object":{"type":"mine","id":"4606627","name":"Mine #2-A"},"validFrom":"1983-01-01","validTo":"1991-05-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4606627|P03389|1983-01-01|1991-05-28"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02807","name":"Cline Larry"},"object":{"type":"operator","id":"P03389","name":"A B C Coal Company Inc"},"validFrom":"1983-01-01","validTo":"1991-05-28","current":false,"derived":true,"evidenceMineId":"4606627","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4606627|P03389|1983-01-01|C02807|1950-01-01|60844"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P21471","name":"Abc Coal Company Inc"},"object":{"type":"mine","id":"4606627","name":"Mine #2-A"},"validFrom":"1991-05-29","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4606627|P21471|1991-05-29|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14402","name":"Daniels Danny B"},"object":{"type":"mine","id":"4606627","name":"Mine #2-A"},"validFrom":"1991-05-29","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4606627|C14402|1991-05-29|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14402","name":"Daniels Danny B"},"object":{"type":"operator","id":"P21471","name":"Abc Coal Company Inc"},"validFrom":"1991-05-29","validTo":null,"current":true,"derived":true,"evidenceMineId":"4606627","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4606627|P21471|1991-05-29|C14402|1991-05-29|92705"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4606627","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"}}