{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "d0bc43c282c17b36571baef4ef5e07a305deb953b4dac045d49f19d012e92318",
  "signature": "jrgxlzLg857fXIyLdZ3wqqE5MQuTluWv8cNWReQz4Ttm6yilW+hTx7IdV022nSesIz0yB8kafR+qKo1DZk0VBw==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T00:50:43.242Z",
  "slug": "trademark-screener",
  "version": "0.1.0",
  "filename": "trademark-screener-agent-plugin.zip",
  "bytes": 3438,
  "content_digest": "7696826c80bf352bbb4d850a2900b0fb4fd71ffbb3487f10e5bdd3cb401260e3",
  "content_signature": "M3ojBkR2aVRT+Ev40U00XBdx7LCMwjXRRT49RnO4YwTo7hvf3nsvk9RthroLzKk/1Aeo6zXfUq/XX6kxn5SlAA==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "a2aba00f0a948e6f2b2d5d30cc3c96a167314a855f2b5908eff4f14154e7d64f"
    },
    {
      "path": "skills/trademark-screener/SKILL.md",
      "sha256": "ce24933ae2c6bd964dcc8f9ee64d85d8956d9186e1e4f021e9696011bf3efd63"
    }
  ],
  "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]"
  }
}