anchor.diff:    src = fetchurl {
       urls = tarballUrls version;
       hashOutput = false;
  -    sha256 = "1bf9ed46dc1ec5d8cfa13ba1ad47f94981f3b6a7ec16ad9123cc2549c4cbf87b";
  +    sha256 = "cb8ce298d7b36558ffc48aec961b14c830ff1783eef7a623411188b5e0f5d454";
     };
   
     nativeBuildInputs = [
  
positive.code:     "mirror://gnupg/gnupg/gnupg-${version}.tar.bz2"
    ];
  
    version = "2.2.14";
  in
  stdenv.mkDerivation rec {
    name = "gnupg-${version}";
  
negative.code:   passthru = {
      srcVerification = fetchurl rec {
        failEarly = true;
        urls = tarballUrls "2.2.15";
        sha256 = "cb8ce298d7b36558ffc48aec961b14c830ff1783eef7a623411188b5e0f5d454";
        fullOpts = {
          pgpsigUrl = map (n: "${n}.sig") urls;
          pgpKeyFingerprints = [
  