{
  "kind": "class-proof-receipt",
  "class": "non_injective_packed_encoding_sig_collision",
  "verdict": "PROVEN",
  "layer": "signature / packed-encoding hash collision (SWC-133)",
  "severity": "high",
  "swc": "SWC-133",
  "outcome": "collision: same digest for a different (big,small); attacker signed for SMALL(1e18) drew BIG(3e18)",
  "clean_control": "passed",
  "chain": "",
  "attributed_incident": null,
  "false_prove_rate": 0,
  "issued": "2026-07-24",
  "note": "Class/mechanism proven by executing the exploit on a forked chain; the patched control resisted. The full exploit method is withheld (defensive). The signature + proof-log inclusion are independently verifiable \u2014 the method is not disclosed.",
  "verify": "https://omniguardlabs.com/stats.html"
}