{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "eb2a849da5d12d5b710aea62a4449c2704101e57e613def8dd2209b7388e6002",
  "signature": "S/HbLo1oz+kZD4GiLdUE7IeVzSZosvdEK5SlbOkTG8ipXQe/urTtwIi0ktwT1f6BSWubuiLsun6A71nTwk4xDQ==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T02:02:22.789Z",
  "slug": "finetune-pipeline",
  "version": "0.1.0",
  "filename": "finetune-pipeline-agent-plugin.zip",
  "bytes": 3214,
  "content_digest": "108726c31aa2501fafde0dcf1219332cd515dfea3114b8eae5742ea3de31eb6a",
  "content_signature": "OIdUPvy5bpLzD67AnXH/fhwy/EKv8kN//Uiv+8JCWs4YcUKaDWpMefpczpzkJ8EWDtftiXCLI+gRNF6wEq8MAQ==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "a24de43ff88782ecce72d450c8544efd9fa593b150d3f0b65dfe9cd16802d353"
    },
    {
      "path": "skills/finetune-pipeline/SKILL.md",
      "sha256": "9644dce724e1b016f51f6b4c73467328011d928418f4843205d84cb61d779e31"
    }
  ],
  "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]"
  }
}