{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "37b7e4d1e202231c2c9c7a60ce49a5efbf09dba065f2f60560c283d920443aed",
  "signature": "QdPIONmYJgfmHJGtA9kidmI4YoOtCkNHZ+ROtxeJ4rw+BfojjOfeUuDEheo04iYTcFKSKf9kQLmGlQ6zDKV0CQ==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T00:12:56.977Z",
  "slug": "soul-demis-hassabis",
  "version": "0.1.0",
  "filename": "soul-demis-hassabis-agent-plugin.zip",
  "bytes": 4043,
  "content_digest": "3731635dc69c7a9d1168ea4f3a943ae143f29170a2a5d7aedaccf336a3b9ddcb",
  "content_signature": "XaWyYlOJqySLL4di61Wk5/omDAWWUGbOvsLNHb54wCp2NBGPC/AtzhgpfjjoeAQoe4MfCTt6HPwawnuPl1zxCg==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "e98db22181014ed2643c3fc8265c6628b257b31097335e8dec4e03db4762eef8"
    },
    {
      "path": "skills/soul-demis-hassabis/SKILL.md",
      "sha256": "435cf4939ce2191d9fedc66a2f6562b0eb0a20e4402cb2c68b901bb07c91ed7a"
    }
  ],
  "verify": {
    "public_key_url": "https://superagentskill.com/api/public/signing-key.pem",
    "instructions": "sha256 the downloaded .zip, compare with `sha256`, then verify the base64 `signature` as an Ed25519 signature over the ascii sha256 hex string using the public key. An extracted or repacked copy can still be verified via `content_digest` / `content_signature`. Helper: node scripts/verify-package-signature.mjs <file.zip> <signature.json> [public-key.pem]"
  }
}