{
  "formatVersion": 1,
  "refreshContract": {
    "rules": [
      "Audit each new upstream release before changing its version, URL, or SHA-256.",
      "Verify upstream release evidence first, hash the complete reviewed file, and update URL and SHA-256 together.",
      "Run python3 scripts/checks/verify_runtime_inputs.py after any edit.",
      "Never derive an expected checksum from bytes inside the production build or verification command."
    ]
  },
  "inputs": {
    "simdutf": {
      "kind": "archive",
      "version": "6.4.2",
      "url": "https://github.com/simdutf/simdutf/releases/download/v6.4.2/singleheader.zip",
      "sha256": "9fe4d6f515724a55c8de88fee4463e0890a1abe2267cda13c4b5d245d58039e6",
      "provenance": "Official GitHub release 210237657 records asset 243345703 as singleheader.zip with size 3013061 bytes; the complete release asset was independently hashed before recording this digest."
    }
  }
}