anchor.diff:    passthru = {
       srcVerification = fetchurl {
         failEarly = true;
  -      sha1Confirm = "48593dcd19473f25fe6fcd08048e13ddbff4c983";
  +      sha1Confirm = "f56fe3407d8297fc0a68a058f4c9e6b77e83575c";
         inherit (src) urls outputHash outputHashAlgo;
       };
     };
  
positive.code: 
    src = fetchurl {
      url = "https://sqlite.org/${releaseYear}/sqlite-autoconf-${version'}.tar.gz";
      multihash = "QmWC5UnAHn7h3wWv7n31Sdusm2TdiFTTJLBYGQb16632sr";
      hashOutput = false;
      sha256 = "ec66595b29bc0798b023a5122021ea646ab4fa9e2f735937c5426feeba950742";
    };
  
    buildInputs = [
  
negative.code:     splitString
      tail;
  
    version = "3.21.0";
    releaseYear = "2017";
    versionList = splitString "." version;
    version' = "${head versionList}${fixedWidthString 2 "0" (head (tail versionList))}"
  