touchback - (American football) a play in which the opposing team has kicked the football into your end zone.
From Wikipedia, the free encyclopedia. A check digit is a form of redundancy check used for error detection on identification numbers, such as bank account numbers, which are used in an application where they will at least sometimes be input manually. It is analogous to a binary parity bit used to check for errors in computer-generated data.
Routing Number, also referred to as RTN, Routing Transit Number, Bank Routing Number) is a 9 digit numeric code printed on the lower left corner of your checks. This number is used for the electronic routing of funds (ACH transfer) from one bank account to another.ast 5-digits are used to identify the Branch. And 3-digits before the Branch Number are used to identify Financial Institution. For Example: EFT = 0$$$#####. As a rule. Transit Number is also known as MICR Number (Magnetic Ink Character Recognition).