{"id":"zlib-crc32-is-iso3309","text":"All 13 CRC call sites across the codebase use `zlib.crc32`, which implements the ISO 3309 polynomial (0xEDB88320); no module uses the Castagnoli polynomial (CRC-32C) that RocksDB and PostgreSQL prefer for hardware-accelerated checksumming.","truth_value":"IN","source":"entries/2026/05/29/topic-crc32-vs-crc32c.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"zlib-crc32-is-iso3309","truth_value":"IN","reason":"premise"}]}}