A valid digital signature gives a recipient reason to believe that the message was created by a known sender (authentication), that the sender cannot deny having sent the message (non-repudiation), and that the message was not altered in transit (integrity).
Load index is an assigned number that corresponds with the load-carrying capacity of a tire. Most passenger car tire load indexes range from 75 to 100, but a few carry more. You'll also find the maximum load elsewhere on the tire sidewall, both in lbs and kg.
What is Tire Load Index? Tire load index determines the maximum weight a tire can safely support once it's properly inflated. As shown in the graphic above, this number is on the sidewall to the right of the tire size rating, but the load index can also be found on your vehicle's placard or in the owner's manual.