The two images over at the right show the toad summoning contract. The first one is from the Volume 11, Chapter 92, Page 18 of the manga, and the second displays the contract from both from the manga and the anime, with the names outlined, color-coded, and translated. The translations you see were not done by me, and I'm not sure how they got the name "Arashi Uzumaki" from what is written, as several Japanese translators have said that the writing there is illegible. And this would make sense, written to look like extremely poor handwriting so nobody would be able to read it, and thus keep the secret of the 4th Hokage's real name and relation to Naruto. Plus, if you just compare it to Naruto's signature, it's easy to see there is no similarity.
You must be registered for see links