anchor.diff:  
     src = fetchurl {
       url = "https://sqlite.org/${releaseYear}/sqlite-autoconf-${version'}.tar.gz";
  -    multihash = "QmV4fPHStuECWQPdiNbphTjw7Cat4ficDU7kth26tgzfJx";
  +    multihash = "QmTkRCN78j4uStNybmiNqWX2y4PKRfFZvYxX8w6Q6eyzaJ";
       hashOutput = false;
  -    sha256 = "b7711a1800a071674c2bf76898ae8584fc6c9643cfe933cfc1bc54361e3a6e49";
  +    sha256 = "92842b283e5e744eff5da29ed3c69391de7368fccc4d0ee6bf62490ce555ef25";
     };
   
     buildInputs = [
  
positive.code:   passthru = {
      srcVerification = fetchurl {
        failEarly = true;
        sha1Confirm = "ef55baa06f46808b9798f8447ba6a0115b23c5d2";
        inherit (src) urls outputHash outputHashAlgo;
      };
    };
  
negative.code:     splitString
      tail;
  
    version = "3.23.1";
    releaseYear = "2018";
    versionList = splitString "." version;
    version' = "${head versionList}${fixedWidthString 2 "0" (head (tail versionList))}"
  