anchor.diff:  
     src = fetchurl {
       url = "https://sqlite.org/${releaseYear}/sqlite-autoconf-${version'}.tar.gz";
  -    multihash = "Qmbio7jaocSjmdhi8rNBEHKUoJQeyak3BhhVJwePkP8Rr9";
  +    multihash = "QmV4fPHStuECWQPdiNbphTjw7Cat4ficDU7kth26tgzfJx";
       hashOutput = false;
  -    sha256 = "2824ab1238b706bc66127320afbdffb096361130e23291f26928a027b885c612";
  +    sha256 = "b7711a1800a071674c2bf76898ae8584fc6c9643cfe933cfc1bc54361e3a6e49";
     };
   
     buildInputs = [
       readline
       ncurses
  +    zlib
     ];
   
     configureFlags = [
  
positive.code:   passthru = {
      srcVerification = fetchurl {
        failEarly = true;
        sha1Confirm = "2fb24ec12001926d5209d2da90d252b9825366ac";
        inherit (src) urls outputHash outputHashAlgo;
      };
    };
  
negative.code:     splitString
      tail;
  
    version = "3.23.0";
    releaseYear = "2018";
    versionList = splitString "." version;
    version' = "${head versionList}${fixedWidthString 2 "0" (head (tail versionList))}"
  