I was told not to purchase fish from China
On Monday, March 5, 2012 10:42:57 AM UTC-5, Betsy D wrote:
...
> > 9th digit: Check digit (whatever _that_ means)
It means that all the other digits (or maybe only the preceding digits) are plugged into a formula, and the result is the 9th digit. That way, if you make up a "VIN" at random, nine times out of ten it will be an obvious fake to those who know the formula. There are check digits in credit-card numbers, too.
...
Jerry
--
"I view the progress of science as being the slow erosion of the
tendency to dichotomize." Barbara Smuts, U. Mich.
|