{
 "description": "ModelBuilder.finalize() with 300 box mesh shapes: one shared Mesh object reused (identity fast path), 300 distinct-but-equal Mesh objects (content-hash dedup, PR framed SHA-256), and 300 distinct objects under the pre-PR tuple hash. unique_sources=1 in all cases (dedup correct).",
 "pr_commit": "5205aa49fb900e124f06122bf7e82ed7686a1fde",
 "mesh_count": 300, "runs": 3, "device": "cpu",
 "created_at": "2026-07-02",
 "finalize_s": {"reused_identity": 0.093281, "distinct_new_hash": 0.122849, "distinct_old_hash": 0.121312},
 "unique_sources": {"reused_identity": 1, "distinct_new_hash": 1, "distinct_old_hash": 1}
}