# KIMU Increment 45 — archive verification procedure

The release archive is accepted only when all of the following checks pass against a fresh extraction:

1. ZIP central-directory and payload integrity check.
2. Extraction into a new empty directory.
3. Portable `SHA256SUMS` verification for every listed release file.
4. Python/core test execution from the extracted tree.
5. Frontend test execution and vendored production rebuild from the extracted tree.
6. JavaScript and shell syntax verification.

The final handover response records the outcome and final archive SHA-256. No live-provider or physical-device result is inferred from archive verification.