I nearly have the verification photo
notes
for 638424
we ad all the numbers and get 27
then for 6 we do
4727 + 600 + 27 this gives us
5354 and that the first part of the URL eg
ci.adultwork.com/UserVeriPhotos/638424_5354 this works for each part eg
5054
5554
5154
4954
5154
gives us 535450545554515449545154 the last two digits are 76 just working out how to get them
for two other tests , the sum us 33 with the last digit being 57 is it number of digits? basicly, the URL is
ci.adultwork.com/UserVeriPhotos/638424_53545054555451544954515476.jpg
and 53545054555451544954515476 is a product of 638424
-- edit
I just tried to brute force the last two digit and it dident work, maybe it aint going to work, I may look again and use more samples.