A compromised wallet??

I tried downloading the bt wallet for os/x from the main website, at http://bitcoin.org/en/download

Once I downloaded I checked the signature and it was this:

sha256 bitcoin-0.8.5-macosx.dmg
SHA256(/dev/stdin)= bbf27afacdb6c1c4babfda8799782ac2e2b02ad2df001b95c988a66cfccd3196

So I tried downloading from a different mirror, and I got another signature:

sha256 bitcoin-0.8.5-macosx-1.dmg
SHA256(/dev/stdin)= 87dd737c0f4ddd09f59c3e01774cb6b59be11c4d99e8f2500dd0b0927d912945

But according to the website, the signature should be:

c583260f59a5e31ba8f819ed91b992423da6893095c6a910877451d01492625e bitcoin-0.8.5-macosx.dmg

So, I'm wondering what's going on. Something doesn't seem right to me here.

I am in <|-|1|\|4. I wonder whether these modifications are occuring in this place, or in other countries.