{"accuracy":{"detail":"Mundx provisional party totals in two fully declared 2025 Anambra LGAs landed at roughly 95–99% of official figures; the expected full-coverage working margin is ±2–3% per party.","headline":"95–99%","rows":[],"source_label":"Mundx validation: Nnewi North and Orumba North","title":"Historical accuracy benchmark","type":"validated_benchmark"},"archive_id":"mundx-osun-43d8d51d55339cb9","archive_payload_sha256":"43d8d51d55339cb9fc72330b1cd67497ee64b1b4c9b8fe85d6c4634fb58d4858","coverage":{"expected":3763,"missing":9,"pct":99.76,"uploaded":3754},"disclaimer":"Independent observer tally from polling-unit forms. 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