Analyze {{artifact_path}} statically. Find the retained encoded strings containing
these exact texts: "Invalid extradata size: %d" and "Unsupported codec version!".

For each match establish the address, encoding, encoded byte length, inclusive
end and provider-reported NUL termination. Corroborate exactly the first 16 and
final 8 bytes with focused loaded-image windows; preserve the returned byte
counts when reporting hex. Establish whether both queries share one complete
retained source, its byte size, and verify a small readable Evidence window.
Cite real Evidence IDs and the target/engine identity.

Keep unknown discovery and ambiguous matches explicit. Use compact selections;
do not fetch the full string inventory into model context. Distinguish encoded
spans from original source objects, reference/runtime use and live memory.
No target execution. Close the target lease.
