anchor.diff:    src = fetchurl {
       urls = tarballUrls version;
       hashOutput = false;
  -    sha256 = "9c13accb1a9e59ab3affde0e60ef9a2149ed4d6e8f99c93c7a5b97499ee323fd";
  +    sha256 = "3cfc84d097fdc891b40d291f2ac2c3f99f71a87e36b20cc755c6fa0e97a77ee7";
     };
   
     doCheck = true;
  
positive.code:   passthru = {
      srcVerification = fetchurl rec {
        failEarly = true;
        urls = tarballUrls "1.0.13";
        minisignUrls = map (n: "${n}.minisig") urls;
        minisignPub = "RWQf6LRCGA9i53mlYecO4IzT51TGPpvWucNSCh1CBM0QTaLn73Y7GFO3";
        sha256 = "9c13accb1a9e59ab3affde0e60ef9a2149ed4d6e8f99c93c7a5b97499ee323fd";
      };
    };
  
  
negative.code:     "mirror://gentoo/distfiles/libsodium-${version}.tar.gz"
    ];
  
    version = "1.0.14";
  in
  stdenv.mkDerivation rec {
    name = "libsodium-${version}";
  