{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "a7f057155a45f35fb22edafdc8610c63d25860bbad73b9198e969e0a230c7755",
  "signature": "M7vouOYvnIiGnn0hxsCsrqc7oN76kDGDGW8+QDQ9PnU0mav9DMVTwqTQte1WiJYKgBQKT5v/2pfVG7zR0PpHCA==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T02:00:48.328Z",
  "slug": "nano-gpt-educator",
  "version": "0.1.0",
  "filename": "nano-gpt-educator-agent-plugin.zip",
  "bytes": 3247,
  "content_digest": "7bdf9004f244a95222d9bd47741e8cf00f8dc420ed0a9a265d08b30499177734",
  "content_signature": "rJubxlopparbtqOCioajc9RkRxcmQLNkgJOW/Y2+fblqdfkQRQUbAKjyttB8zMyxc/1ENcBMi9GaQ87CChfPDA==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "eae39c59a5f8e9d60343989d40697d309ebf6e2c3998d9fccdd2b4ebef7046b0"
    },
    {
      "path": "skills/nano-gpt-educator/SKILL.md",
      "sha256": "4db1f4760e948c46a146e307a22a8b9672060dfe295301bb1c8b5a085b6f0c3a"
    }
  ],
  "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]"
  }
}