{
  "proof": {
    "delta_ms": -7,
    "baseline_ms": 206
  },
  "signature": "DINZ84jiR6hS22WKfyx05F196TxsfhCo0lMXQaxFGSmRPZie_X6-GoVThpns6euDdUCegXttrQDxeT7vBYSlAg",
  "kid": "publisher-speeddelta-20250919",
  "public_key": "6QzPYsjjOuzF4mWmZQRwzAM_BW0TbIen65vfMmq_b1E",
  "algorithm": "ssh-ed25519",
  "hash_alg": "sha512"
}