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Check digit information


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. It consists of one or more digits (or letters) computed by an algorithm from the other digits (or letters) in the sequence input.[1]

With a check digit, one can detect simple errors in the input of a series of characters (usually digits) such as a single mistyped digit or some permutations of two successive digits.

  1. ^ "What is Check Digit? - Definition from Techopedia". Techopedia.com. Retrieved 2022-03-16.

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Check digit

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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...

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ISBN

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character or check digit. A 13-digit ISBN can be separated into its parts (prefix element, registration group, registrant, publication and check digit), and...

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Luhn algorithm

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The check digit is computed as follows: If the number already contains the check digit, drop that digit to form the "payload". The check digit is most...

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International Bank Account Number

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two check digits; and a number that includes the domestic bank account number, branch identifier, and potential routing information. The check digits enable...

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Universal Product Code

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the check digit is 0; otherwise the check digit is 10 − M. For example, in a UPC-A barcode "03600029145x12", where x12 is the unknown check digit, x12...

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International Mobile Equipment Identity

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The IMEI (15 decimal digits: 14 digits plus a check digit) or IMEISV (16 decimal digits: 14 digits plus two software version digits) includes information...

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ISSN

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an eight-digit code, divided by a hyphen into two four-digit numbers. The last digit, which may be zero through nine or an X, is a check digit, so the...

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International Article Number

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13-digit EAN-13 number consists of four components: GS1 prefix – 3 digits Manufacturer code – variable length Product code – variable length Check digit...

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International Standard Music Number

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an item ID, and a check digit, typically looking like M-2306-7118-7. From 1 January 2008, the ISMN was defined as a thirteen digit identifier beginning...

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International Securities Identification Number

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check digit would be 10). 5 mod 10 = 5 So the ISIN check digit is five. TREASURY CORP VICTORIA 5 3/4% 2005-2016: ISIN AU0000XVGZA3. The check digit is...

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Code 39

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barcode scheme does not contain a check digit (in contrast to—for instance—Code 128), but it can be considered self-checking on the grounds that a single erroneously...

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Vehicle identification number

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remainder is the check digit. If the remainder is 10, the check digit is X. In this example, the remainder is 10, so the check digit is transliterated...

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CUSIP

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numbers (PPNs) used by the insurance industry. The 9th digit is an automatically generated check digit using the "Modulus 10 Double Add Double" technique...

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Meter Point Administration Number

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supplementary data on the first. Only the last digit on the bottom row is the check digit. The first two digits of a full MPAN reflect its profile class. Profile...

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National identification number

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The first 5 digits are based on the applicant's locality, the next 7 are serial numbers, and the last digit is a check digit. The last digit also indicates...

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ABA routing transit number

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States, an ABA routing transit number (ABA RTN) is a nine-digit code printed on the bottom of checks to identify the financial institution on which it was...

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ISO 6346

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system for every container that includes a unique serial number (with check digit), the owner, a country code, a size, type and equipment category as well...

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International Standard Musical Work Code

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three parts: prefix element (1 character) work identifier (9 digits) check digit (1 digit) Currently, the only prefix defined is "T", indicating Musical...

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Damm algorithm

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In error detection, the Damm algorithm is a check digit algorithm that detects all single-digit errors and all adjacent transposition errors. It was presented...

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Personal Public Service Number

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as being nine characters in length, consisting of 7 digits in positions 1 to 7, followed by a check character in position 8, with either a space or the...

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Codabar

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Because Codabar is self-checking, most standards do not define a check digit. Some standards that use Codabar will define a check digit, but the algorithm...

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MSI Barcode

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calculating a check digit: No check digit (least common) Mod 10 (most common) Mod 11 Mod 1010 Mod 1110 When using the Mod 10 check digit algorithm, a string...

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Bibcode

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characters and has the form YYYYJJJJJVVVVMPPPPA where YYYY is the four-digit year of the reference and JJJJJ is a code indicating where the reference...

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Code 128

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right to left is the reverse stop symbol (followed by a 2-unit bar). The check digit is a weighted modulo-103 checksum. It is calculated by summing the start...

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Wagon numbering system in India

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sixth digits indicate the year of manufacture, the seventh through tenth digits indicate unique wagon number and the last digit is a check digit. These...

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Tax file number

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itself was either 8 or 9 digits, with a check digit. Individuals received a 9 digit TFN and non-individuals received an 8 digit TFN. The quote of the TFN...

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Global Location Number

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bar code or GS1 EPC tag. GLN is a 13-digit number structured as follows: EAN (European Article Number) check digits (administered by GS1) are calculated...

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