I don't have the file anymore, but my known.met still records it... here are the relevant parts:
FileHash : BBCFB8F8C5C81A53A7DCC47B69ED0B72
Parts : 2
HashSet : 9998EB3FD7C9235B1CA2C730325C51A0, 81518978BE094E9731D34174E84AAAA5
Tags:
{ 0x01 FT_FILENAME, 2 TAGTYPE_STRING, "aMuleCore-2.2.6-x86-Leopard-MFb03.dmg" }
{ 0x02 FT_FILESIZE, 3 TAGTYPE_UINT32, 10850511 (10.35 MB) }
{ 0x27 FT_AICH_HASH, 2 TAGTYPE_STRING, "C5VY27SOCG7K4FOW73D3P633UGVQIZGA" }
It shows the eD2k masterhash, the hashset, the AICH hash -- you should be able to verify the file.
...
Thinking of it, I'm also able to verify it (downloaded your version):
$ alcc aMuleCore-2.2.6-x86-Leopard-MFb03.dmg
ed2k://|file|aMuleCore-2.2.6-x86-Leopard-MFb03.dmg|10850511|bbcfb8f8c5c81a53a7dcc47b69ed0b72|/
So it's the true genuine build.
(And now I do have the file again

)