anchor.diff:    passthru = {
       srcVerification = fetchurl {
         failEarly = true;
  -      sha1Confirm = "2a451bcf42dc0865840463f7efc3f51cebeb4ea8";
  +      sha1Confirm = "48593dcd19473f25fe6fcd08048e13ddbff4c983";
         inherit (src) urls outputHash outputHashAlgo;
       };
     };
  
positive.code: 
    src = fetchurl {
      url = "https://sqlite.org/${releaseYear}/sqlite-autoconf-${version'}.tar.gz";
      multihash = "QmVwxnYTzRTdqf7q7kg9qWkkzmUnoYdZWVqTZmdtqXZt9Y";
      hashOutput = false;
      sha256 = "3814c6f629ff93968b2b37a70497cfe98b366bf587a2261a56a5f750af6ae6a0";
    };
  
    buildInputs = [
  
negative.code:     splitString
      tail;
  
    version = "3.20.1";
    releaseYear = "2017";
    versionList = splitString "." version;
    version' = "${head versionList}${fixedWidthString 2 "0" (head (tail versionList))}"
  