self.UTXO_EXTENSION_FINGERPRINT = {
  product: "utxo-guard",
  version: "1.0.0",
  buildId: "utxo-guard-official-extension-build",
  channel: "extension",
  officialOrigin: "https://www.vestigeindex.com",
  watermark: "UTXO-GUARD-OFFICIAL-BUILD::Vestige-Index",
};

self.verifyUtxoExtensionIntegrity = function verifyUtxoExtensionIntegrity() {
  const fingerprint = self.UTXO_EXTENSION_FINGERPRINT;
  const valid = Boolean(fingerprint?.watermark && fingerprint.product === "utxo-guard");
  return {
    valid,
    warning: valid ? "" : "Official UTXO Guard verification failed. Premium features are disabled.",
  };
};
