anchor.diff:    passthru = {
       srcVerification = fetchurl rec {
         failEarly = true;
  -      urls = tarballUrls "4.13";
  -      pgpsigUrls = map (n: "${n}.sig") urls;
  -      pgpKeyFingerprint = "1F42 4189 05D8 206A A754  CCDC 29EE 58B9 9686 5171";
  -      outputHash = "7e528e8c317ddd156230c4e31d082cd13e7ddeb7a54824be82632209550c8cca";
  +      urls = tarballUrls "4.14";
  +      outputHash = "9e604ba5c5c8ea403487695c2e407405820d98540d9de884d6e844f9a9c5ba08";
         inherit (src) outputHashAlgo;
  +      fullOpts = {
  +        pgpsigUrls = map (n: "${n}.sig") urls;
  +        pgpKeyFingerprint = "1F42 4189 05D8 206A A754  CCDC 29EE 58B9 9686 5171";
  +      };
       };
     };
   
  
positive.code:     "mirror://gnu/libtasn1/libtasn1-${version}.tar.gz"
    ];
  
    version = "4.13";
  in
  stdenv.mkDerivation rec {
    name = "libtasn1-${version}";
  
negative.code:   src = fetchurl {
      urls = tarballUrls version;
      hashOutput = false;
      sha256 = "9e604ba5c5c8ea403487695c2e407405820d98540d9de884d6e844f9a9c5ba08";
    };
  
    nativeBuildInputs = [
  