{"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":"2026-10-17T05:35:58.500035+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":"1508195","name":"Bear Branch Mine"},"operator":{"type":"operator","id":"P16384","name":"Cpg Inc"},"controller":{"type":"controller","id":"C02560","name":"James L  Griffith"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P15569","name":"Bear Branch Coal Company"},"object":{"type":"mine","id":"1508195","name":"Bear Branch Mine"},"validFrom":"1975-04-01","validTo":"1984-05-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1508195|P15569|1975-04-01|1984-05-01"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C11163","name":"Price Bobby Lee"},"object":{"type":"mine","id":"1508195","name":"Bear Branch Mine"},"validFrom":"1975-04-01","validTo":"1984-05-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1508195|C11163|1975-04-01|1984-05-01"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C11163","name":"Price Bobby Lee"},"object":{"type":"operator","id":"P15569","name":"Bear Branch Coal Company"},"validFrom":"1975-04-01","validTo":"1984-05-01","current":false,"derived":true,"evidenceMineId":"1508195","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1508195|P15569|1975-04-01|C11163|1975-04-01|83796"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P16384","name":"Cpg Inc"},"object":{"type":"mine","id":"1508195","name":"Bear Branch Mine"},"validFrom":"1984-05-02","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1508195|P16384|1984-05-02|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02560","name":"James L  Griffith et al"},"object":{"type":"mine","id":"1508195","name":"Bear Branch Mine"},"validFrom":"1984-05-02","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1508195|C02560|1984-05-02|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02560","name":"James L  Griffith et al"},"object":{"type":"operator","id":"P16384","name":"Cpg Inc"},"validFrom":"1984-05-02","validTo":null,"current":true,"derived":true,"evidenceMineId":"1508195","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1508195|P16384|1984-05-02|C02560|1984-05-02|60050"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1508195","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}