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One real, signed patch bundle. Inspect it.
Every figure below is copied verbatim from a real seeded bundle on the __demo_fleet__ sentinel for the seg_a2_bo segment (A2 Bologna–Modena). The same row also lives in the audit trail — the embedded signature is the real HMAC, byte for byte.
Verify every signature before it reaches the ECU uploader.
Each item below is signed with HMAC-SHA256 over a sorted-key canonical JSON payload — re-canonicalize the seven signed fields (sorted keys, JSON-stringify of strings, no whitespace) and HMAC-SHA256 them with
PATCH_HMAC_SECRET to reproduce the server signature. A row whose recomputed digest does not match src/lib/patches/sign.tsis tampered — drop it before upload. Read the verification guide →Bundle
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A partner engineer reads every intake — usually with a pilot proposal within one EU business day.