My jsfiddle page returns 404 (registration required?)

Question

I think jsfiddle is really neat and I used it yesterday to help someone on stackoverflow.

I created a new fiddle, hit 'Save' and used this provided link: http://jsfiddle.net/77XLD/1/

The link was working until a couple of hours ago but suddenly now I get a 404 page when trying to find my old fiddle again. Saying:

Error 404
We're truly sorry, but there is no such page.

Now I did not register with jsfiddle so far. Does jsfiddle store the pages for an unlimited time only if you are registered there? So did my page somehow just 'time out'?

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Edit (11th of August 2014): The page is back again.

Answer 1

According to this Question:

Until beta, all fiddles are stored permanently. And, currently, they live forever. 

My recent Fiddles also ran into 404 errors. And Beta is not out yet, this means that it was a problem on the jsfiddle website itself. If we look at the sites twitter account we see that it was a possible DDOS attack causing data loss:

All anon fiddles created after July 26th are by now considered 
spammy.. We will resurrect them after filtering out the 99% of real spam.

Update

According to a new post by jsFiddle:

If you’ve created a fiddle anonymously after late July and you remember the 
URL, please let us know, we will resurrect it.

So if you have your Fiddles URL's, send them to the people at JSFiddle to get them resurrected.