# REPRODUCTION NOTICE — `zipnn`

This directory is reserved for a faithful re-implementation of **ZipNN** from its published description (not the original authors' code).

## Status: NOT IMPLEMENTED in this artifact

Official implementation: **https://github.com/zipnn/zipnn**

ZipNN is described in: Hershcovitch et al., *"ZipNN: Lossless Compression for AI Models"*, arXiv:2411.05239.

Per paper §11.2 ("External-method comparison is out of scope for this version"), ZipNN is *not* in Table 1: the official CPU release fails our byte-exact roundtrip assertion in default configuration (paper §4.2 / §11.2). The ZipNN published bf16 ratio (≈1.47× per arXiv:2411.05239) is cited as a published reference point in §5.3 observation (5); we do not vendor a re-implementation in this artifact. See `../../DEVIATIONS.md §C` for the path to closing the gap (a verified-roundtrip ZipNN configuration).