SIGMA Proofkit Ed25519 Public Key
===================================
Owner: Invariant Research (invariant.pro)
Algorithm: Ed25519
Generated: April 20, 2026

Public Key (hex):
f8bca8a8b3d54d27d63a6f2dfb6f71e0aa06210f40f07854ca50e4d5fa754d51

Fingerprint (SHA256 of public key):
9f3d4f6ae7534e9599427ee4ef0dab86c7815aeebc4c889c84c1a1f97e86071a

Verification:
  pip install pynacl
  python -c "
  from nacl.signing import VerifyKey
  import hashlib
  pk = bytes.fromhex('f8bca8a8b3d54d27d63a6f2dfb6f71e0aa06210f40f07854ca50e4d5fa754d51')
  vk = VerifyKey(pk)
  fp = hashlib.sha256(pk).hexdigest()
  print('Key loaded. Fingerprint:', fp)
  "

Use this key to verify any SIGMA evidence bundle:
  1. Download the evidence ZIP from the analysis
  2. Extract sign.sig, canonical_input.json, analysis_policy.json, output.sha256
  3. Run the enclosed verify.py script with this public key
  4. Or verify programmatically with PyNaCl

Patent: U.S. App# 19/649,080
Contact: jason@invariant.pro