anchor.diff:          "D238 EA65 D64C 67ED 4C30  73F2 8A86 1B1C 7EFD 60D9"
           "46CC 7308 65BB 5C78 EBAB  ADCF 0437 6F3E E085 6959"
         ];
  -      sha256 = "e64d8c5fa2d05938a5080cb784a98ac21be0812f2a26f844b18f0d6a0e711984";
  +      sha256 = "d95b361ee6ef7eff86af40c8c72bf9313736ac9f7010d6604d78bf83818e976e";
       };
     };
   
  
positive.code:   src = fetchurl {
      urls = tarballUrls version;
      hashOutput = false;
      sha256 = "e64d8c5fa2d05938a5080cb784a98ac21be0812f2a26f844b18f0d6a0e711984";
    };
  
    nativeBuildInputs = [
  
negative.code:   passthru = {
      srcVerification = fetchurl rec {
        failEarly = true;
        urls = tarballUrls "2.2.7";
        pgpsigUrl = map (n: "${n}.sig") urls;
        pgpKeyFingerprints = [
          "D869 2123 C406 5DEA 5E0F  3AB5 249B 39D2 4F25 E3B6"
  