The IDPS is a 16 byte value that contains console specific information. Exactly what information this stores is not completely known.
Chassis Check ⇓ ⇓ 00000000 00 00 00 01 00 89 00 0B 14 00 EF DD CA 25 52 66 .....‰....ïÝÊ%Rf ⇑ ⇑ Target ID PS3 Model type (Internal:Product Code) (Internal: Product Sub Code)
6th byte represents your Target ID
8th byte represents your PS3 Model
9th and 10th byte : chassis check
The IDPS can be found in EID0 and EID5, see Flash (NAND @ 0x80870 / NOR @ 0x2F070)
Displayed under setting information on MultiMan or on registry/application_persistent file inside playstation Store folder (as DeviceID).