{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "8ee9b33d7c21ab8cf9ba6b973013376c30f53ac3b9b6cd59d1a062d335985e76",
  "signature": "iFBOpoiVPWmKPeuXJhhgP90cZy7Q41KFGhX8UWYFfBN/vEE0uhsVQ8m+0ENKWXEt3Xt8Z8ZUba6FN+eCQpuyBQ==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T02:02:22.712Z",
  "slug": "od-paywall-upgrade-cro",
  "version": "0.1.0",
  "filename": "od-paywall-upgrade-cro-agent-plugin.zip",
  "bytes": 4391,
  "content_digest": "598d060b7064fdac4fe664729810c538aab8a5fdfb27a13e326d52b43ef98b66",
  "content_signature": "n3JeOIOyITNfUgFEeLCg8opXCNz26mT1TDMa4znPOZ8f9Cip6s1z04Jf3Ty6f1Lp4AxVYVc0Z5MJrWqcP8y8Bg==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "1eb1c74659fb31d8217a7480b767c41a89ab899a349060d1f056397647c53a43"
    },
    {
      "path": "skills/od-paywall-upgrade-cro/SKILL.md",
      "sha256": "b43888a65700ce688d9d99181a8c7e9352be10e4616c03630cae295f5cf9b06e"
    },
    {
      "path": "skills/od-paywall-upgrade-cro/references/examples.md",
      "sha256": "5970f2df2f01457fe3ea1a12908a0bc2a86ade4fbfb2528c3a50c8581a73c52c"
    }
  ],
  "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]"
  }
}