An X-ray detecting device, and a fabricating method thereof, that reduces ground line breakage. For high density multi-state encoding, this approach borders on full analog treatment, dictating analog techniques including A to D type conversion to reconstruct and process the data. The method also includes accessing a social graph of the particular user to determine whether one or more users in the social graph have previously accessed the shared device; and displaying on a display of the mobile device information indicating which of the users in the social graph have previously accessed the shared device. The first fund is arbitragable with a second fund that is based on the index and which is registered in a second different country.