anchor.diff:      "mirror://gnu/coreutils/coreutils-${version}.tar.xz"
     ];
   
  -  version = "8.30";
  +  version = "8.31";
   in
   stdenv.mkDerivation rec {
     name = "coreutils-${type}-${version}";
  
positive.code:   src = fetchurl {
      urls = tarballUrls version;
      hashOutput = false;
      sha256 = "e831b3a86091496cdba720411f9748de81507798f6130adeaef872d206e1b057";
    };
  
    buildInputs = optionals (type == "full") [
  
negative.code:   passthru = {
      srcVerification = fetchurl rec {
        failEarly = true;
        urls = tarballUrls "8.31";
        inherit (src) outputHashAlgo;
        outputHash = "ff7a9c918edce6b4f4b2725e3f9b37b0c4d193531cac49a48b56c4d0d3a9e9fd";
        fullOpts = {
          pgpsigUrls = map (n: "${n}.sig") urls;
          pgpKeyFingerprint = "6C37 DC12 121A 5006 BC1D  B804 DF6F D971 3060 37D9";
        };
      };
    };
  
  