anchor.diff:          # NIIBE Yutaka
           "031E C253 6E58 0D8E A286  A9F2 2071 B08A 33BD 3F06"
         ];
  -      outputHash = "b9b85eba0793ea3e6e66b896eb031fa05e1a4517277cc9ab10816b359254cd9a";
  +      outputHash = "948276ea47e6ba0244f36a17b51dcdd52cfd1e664b0a1ac3bc82134fb6cec199";
         inherit (src) outputHashAlgo;
       };
     };
  
positive.code:   passthru = {
      srcVerification = fetchurl rec {
        failEarly = true;
        urls = tarballUrls "1.7.7";
        pgpsigUrls = map (n: "${n}.sig") urls;
        pgpKeyFingerprints = [
          # Werner Koch
  
negative.code:   src = fetchurl {
      urls = tarballUrls version;
      hashOutput = false;
      sha256 = "948276ea47e6ba0244f36a17b51dcdd52cfd1e664b0a1ac3bc82134fb6cec199";
    };
  
    buildInputs = [
  