anchor.diff:  
     src = fetchurl {
       url = "https://downloadmirror.intel.com/${id}/eng/microcode-${version'}.tgz";
  -    multihash = "QmQFmb1DQWCTE8oKBYLuksxFvugv8o5LzYZ6T9LLThF1oh";
  +    multihash = "QmaEb3xGPG33EBU2cPog3c5BW1YG39r5S9xxgfKuEAQY5W";
       hashOutput = false;
  -    sha256 = "29f9e8dc27e6c9b6488cecd7fe2394030307799e511db2d197d9e6553a7f9e40";
  +    sha256 = "46ab18699ec42eb6cc01ee1846ec4d7ca979766dee2156f92d69e2f6df548137";
     };
   
     nativeBuildInputs = [
  
positive.code: }:
  
  let
    version = "2018-08-07";
    version' = stdenv.lib.replaceStrings ["-"] [""] version;
    id = "28039";
  
    initrdPath = "share/intel-microcode/intel-microcode-initrd.img";
  in
  
negative.code:   passthru = {
      srcVerification = fetchurl {
        failEarly = true;
        inherit (src)
          urls
          outputHash
          outputHashAlgo;
        fullOpts = {
          md5Confirm = "b12f8680d87c81a302e8c85712ed1a80";
        };
      };
      inherit initrdPath;
    };
  