Did the Islamic State really issue a 'caliphate' passport?

According to various sources, some of which may not be particularly reliable, ISIS is claiming it has issued a “caliphate” passport.

https://twitter.com/raf234/status/485699533788430336

So I guess this passport would cause a hiccup or two at Kennedy? http://t.co/LMvBYmjNP5

— Gregory Djerejian (@GregDjerejian) July 6, 2014

If the ISIS passport is real, it'll probably be easier to get a travel visa with it than with an Egyptian passport

— Karim Mohy (@karim_mohy) July 6, 2014

I need a #ISIS passport

— Azzam Latheef (@athirisoru) July 6, 2014

#ISIS passport meaningless. #UNSC have labelled it a terrorist entity. Instead ISIS passport good evidence for prosecution.

— Magnus Ranstorp (@MagnusRanstorp) July 6, 2014

Good opportunity for Pakistanis to have dual nationality RT@MahirZeynalov: ISIS allegedly issues ‘caliphate’ passport http://t.co/YlBA3OrdVe

— Ali. ???? (@AliNasirSyed) July 6, 2014

Many tweeters are citing Al Arabiya News, which itself seems a bit skeptical of the story:

Militant members and sympathizers of the Islamic State of Iraq and Syria (ISIS) have circulated pictures of what they said was the passport of the so-called “caliphate” declared last week by the militant group.

The “State of the Islamic Caliphate” appears to be inscribed at the top of the purported passport. At the bottom, it says: “The holder of the passport if harmed we will deploy armies for his service.”

Who knows? It could be legit. Or it could be a hoax. We’ll keep you posted.