Pieces =  12
cksum.aa = 3098865549 1425408
cksum.ab = 4290307211 1425408
cksum.ac = 227862097 1425408
cksum.ad = 744523329 1425408
cksum.ae = 3297640350 1425408
cksum.af = 3423697411 1425408
cksum.ag = 1397461716 1425408
cksum.ah = 1939290904 1425408
cksum.ai = 20859792 1425408
cksum.aj = 757620692 1425408
cksum.ak = 2434334357 1425408
cksum.al = 1538759460 1257595