The Quantum Pontiff Hacked?

Has the arXiv been hacked or is it offline? When I connect to it shoots me to mirror sites which haven’t been updated since Oct 08. Via @MartinQuantum. Also nanoscale views reports the arXiv down.

Since this is a blog we can easily spread rumors by including a link to an article today about cyberattacks going on right now possibly originating from North Korea.

Update 9:03 am PST: At you can now get papers greater than October 2008 by searching, but the “recents” and “new” isn’t working. Also the RSS feed seems to only have yesterdays posts. A comment on Secret Blogging Seminar got a response back on the problem: “technical difficulties”.

Update 8:31 pm PST: Full day of meetings, but before they started the arXiv got at least yesterday’s posts up (and I could run scirates scripts to download the day.) Anyone know if you can submit papers?


  1. #1 Evan Berkowitz
    July 8, 2009

    The LANL mirror seems to be up-to-date.

  2. #2 Ashlery
    July 8, 2009

    In fact, the arxiv’s been knackered for hours – since 8am UK time today at least. On the other hand, it was still working at about 3am UK time… The behaviour’s been changing, too: at first the main site was showing papers from October 2008, but recently it’s been redirecting (randomly?) to other mirrors, all of which are also showing October 2008.

    Not sure there’s any real evidence of hacking, though… my no. 1 guess would be a hard disk crash which has taken out everything from 2009. At one point if you searched for papers from 2009, you could see the title but not the abstract or any other content…

  3. #3 Dave Bacon
    July 8, 2009

    @Evan: hm, I just tried lanl and it doesn’t work for me.

  4. #4 mick
    July 8, 2009

    I second “Ashlery’s” opinion. Especially since he meant to type “Ashley” 🙂

    This arXiv issue has been bugging us all day here in EUland – we were wondering how long it would take before people in the US noticed…

  5. #5 Dave Bacon
    July 8, 2009

    @Evan: Wait I take that back. The papers are searchable now, but the “recents” and “new” aren’t working.

  6. #6 charlie
    July 8, 2009

    maybe it has something to do with this new iPhone app called “ArXiview”

  7. #7 Dave Bacon
    July 8, 2009

    @charlie: you forgot the obligatory link to the iTunes store.

    When I was a grad student twice in a row when Daniel Lidar submitted one of our papers the arXiv mailing came out later than usual. So I think we should blame Daniel 🙂 (If he submitted a paper yesterday I think I win the internet.)

  8. #8 Ian Durham
    July 8, 2009

    The most up-to-date mirror I can find is the APS mirror at I posted a paper on May 29 that can be downloaded from the latter but not from the former.

    I had the same thought about N. Korea: truth or fiction, it’s an interesting coincidence.

  9. #9 sep332
    July 8, 2009

    What’s that? Iranian hackers using unfounded rumors on blogs to attack critical US science infrastructure? I must blog this immediately!

  10. #10 Jon
    July 8, 2009

    Working again.

  11. #11 Jon
    July 8, 2009

    No, I take it back. Only the mirrors are working again.

  12. #12 Suresh
    July 8, 2009

    They are still not accepting submissions to the arXiv — I’ve been trying to submit a paper for the past twelve hours or so and have not managed to do it. I also did see some strange behavior with searches giving only the title but no abstract.

  13. #13 Suresh
    July 9, 2009

    I managed to post my paper on the arXiv about four to five hours ago. So now they are back to accepting submissions. However, there has been no listing of new papers for today.

  14. #14 Michael Kelsey
    July 9, 2009

    I had notified arXiv of their DB problems on Tuesday morning. Only some of the physics categories were affected. Jake Weiskoff got back to me later that day, that they had had some sort of disk problems.

    By Wednesday morning, they had set up “” to dynamically redirect to the mirrors, which were, as people have noted, not themselves fully up to date. It appears that everything is accessible now (Thursday a.m.), but there aren’t any new listings yet.

  15. #15 Joe Fitzsimons
    July 11, 2009

    Is it just me or has adsabs gone down too?

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