The original article has the correct images:<p><pre><code>  $ curl -s http:&#x2F;&#x2F;www.fishtrap.co.uk&#x2F;black.jpg.coll | md5
  b69dd1fd1254868b6e0bb8ed9fe7ecad
  $ curl -s http:&#x2F;&#x2F;www.fishtrap.co.uk&#x2F;brown.jpg.coll | md5
  b69dd1fd1254868b6e0bb8ed9fe7ecad
  $ curl -s http:&#x2F;&#x2F;www.fishtrap.co.uk&#x2F;white.jpg.coll | md5
  b69dd1fd1254868b6e0bb8ed9fe7ecad</code></pre>