# International Standard Serial Number Research Materials

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International Standard Serial Number Images

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Rihanna - Take A Bow
Music video by Rihanna performing Take A Bow. YouTube view counts pre-VEVO: 66288884. (C) 2008 The Island Def Jam Music Group.
Rihanna - Rehab ft. Justin Timberlake
Music video by Rihanna performing Rehab. YouTube view counts pre-VEVO: 19591123. (C) 2007 The Island Def Jam Music Group.
Key & Peele: Substitute Teacher
A substitute teacher from the inner city refuses to be messed with while taking attendance.
MACKLEMORE X RYAN LEWIS - OTHERSIDE REMIX FEAT. FENCES [MUSIC VIDEO]
The Otherside Remix Music Video was filmed in various locations for about a year and a half throughout 2010-2011. It is the duo's second video collaboration ...
Jimmy Kimmel Live - Celebrities Read Mean Tweets #2 Jimmy Kimmel Live's YouTube channel features clips and recaps of every episode from the late night TV sho...
Mortal Kombat: Legacy - Season 2 Trailer
Watch Season 1 of Mortal Kombat Legacy here: http://www.youtube.com/channel/SWVkIoQKmEa4I The Mortal Kombat Legacy continues in Season 2 as Liu Kang, Kung La...
David Guetta - Just One Last Time ft. Taped Rai
"Just One Last Time" feat. Taped Rai. Available to download on iTunes including remixes of : Tiësto, HARD ROCK SOFA & Deniz Koyu http://smarturl.it/DGJustOne...
MACKLEMORE & RYAN LEWIS - CAN'T HOLD US FEAT. RAY DALTON (OFFICIAL MUSIC VIDEO)
Macklemore & Ryan Lewis present the official music video for Can't Hold Us feat. Ray Dalton. Can't Hold Us on iTunes: https://itunes.apple.com/us/album/cant-...
Draw My Life- Jenna Marbles
This video accidentally turned out kind of sad, ME SO SOWWY IT NOT POSED TO BE SAD WHO WANTS HUGS AND COOKIES? Also, FYI for anyone attempting this, it takes...
Fun.: We Are Young ft. Janelle Monáe [OFFICIAL VIDEO]
Fun.'s music video for 'We Are Young' featuring Janelle Monáe from the full-length album, Some Nights - available now on Fueled By Ramen. Visit http://ournam...
F*@#ing Ben Affleck
Jimmy reveals that he is f*@#ing Ben Affleck.
Draw My Life - Ryan Higa
So i was pretty hesitant to make this video... but after all of your request, here is my Draw My Life video! Check out my 2nd Channel for more vlogs: http://...
Giant 6ft Water Balloon - The Slow Mo Guys
Follow on Twitter! - https://twitter.com/#!/GavinFree Watch this one in HD! The slow mo guys are well aware that water balloons are always good in slow motio...
ISSN encoded in an EAN-13 barcode with sequence variant 0 and issue number 5.
Example of an ISSN encoded in an EAN-13 barcode with explanation.
ISSN expanded with sequence variant 0 to a GTIN-13 and encoded in an EAN-13 barcode with and EAN-2 add-on designating issue number 13.

An International Standard Serial Number (ISSN) is a unique eight-digit number used to identify a print or electronic periodical publication.[1] Periodicals published in both print and electronic form may have two ISSNs, a print ISSN (p-ISSN) and an electronic ISSN (e-ISSN or eISSN). The ISSN system was first drafted as an ISO international standard in 1971 and published as ISO 3297 in 1975.[2] The ISO subcommittee TC 46/SC 9 is responsible for the standard.

## Code format

The format of the ISSN is an eight digit number, divided by a hyphen into two four-digit numbers.[1] The last digit, which may be 0–9 or an X, is a check digit. The ISSN of the journal Hearing Research, for example, is 0378-5955, the check digit is 5.

To calculate the check digit, the following algorithm may be used:

Calculate the sum of the first seven digits of the ISSN multiplied by its position in the number, counting from the right — that is, 8, 7, 6, 5, 4, 3, and 2, respectively:
$0\cdot 8 + 3\cdot 7 + 7\cdot 6 + 8\cdot 5 + 5\cdot 4 + 9\cdot 3 + 5\cdot 2$
$= 0 + 21 + 42 + 40 + 20 + 27 + 10$
$= 160$.
The modulus 11 of this sum is then calculated: divide the sum by 11 and determine the remainder.
$\frac{160}{11} = 14\mbox{ remainder }6=14+\frac{6}{11}$.
If there is no remainder the check digit is 0, otherwise the remainder value is subtracted from 11 to give the check digit:
$11 - 6 = 5$
5 is the check digit.
An upper case X in the check digit position indicates a check digit of 10.

To confirm the check digit, calculate the sum of all eight digits of the ISSN multiplied by its position in the number, counting from the right (if the check digit is X, then add 10 to the sum). The modulus 11 of the sum must be 0.

## Code assignment

ISSN codes are assigned by a network of ISSN National Centres, usually located at national libraries and coordinated by the ISSN International Centre based in Paris. The International Centre is an intergovernmental organization created in 1974 through an agreement between UNESCO and the French government. The International Centre maintains a database of all ISSNs assigned worldwide, the ISDS Register (International Serials Data System) otherwise known as the ISSN Register. As of 2011, the ISSN Register contained records for 1,623,566 items.[3]

## Comparison to other identifiers

ISSN and ISBN codes are similar in concept, where ISBNs are assigned to individual books. An ISBN might be assigned for particular issues of a periodical, in addition to the ISSN code for the periodical as a whole. An ISSN, unlike the ISBN code, is an anonymous identifier associated with a periodical title, containing no information as to the publisher or its location. For this reason a new ISSN is assigned to a periodical each time it undergoes a major title change.

Since the ISSN applies to an entire periodical a new identifier, the Serial Item and Contribution Identifier, was built on top of it to allow references to specific volumes, articles, or other identifiable components (like the table of contents).

## Availability

The ISSN Register is not freely available for interrogation on the web but is available by subscription. There are several routes to the identification and verification of ISSN codes for the general public.

• the print version of a periodical typically will include the ISSN code as part of the publication information
• most periodical websites contain ISSN code information
• derivative lists of publications will often contain ISSN codes; these can be found through on-line searches with the ISSN code itself or periodical title
• WorldCat permits searching their catalog by ISSN by entering "issn:"+ISSN code in the query field. One can also go directly to an ISSN's record by appending it to http://www.worldcat.org/ISSN/, e.g. http://www.worldcat.org/ISSN/1021-9749. This does not query the ISSN Register itself but rather shows whether any Worldcat library holds an item with the given ISSN.

## Use in URNs

An ISSN can be encoded as a Uniform Resource Name (URN) by prefixing it with "urn:ISSN:".[4] For example Rail could be referred to as "urn:ISSN:1534-0481". URN namespaces are case-sensitive, and the ISSN namespace is all caps.[5] If the checksum digit is "X" then it is always encoded in uppercase in a URN.

## References

1. ^ a b What is an ISSN?, ISSN International Center.
2. ^ ISSN and ISO standards, ISSN International Center, 2008.
3. ^ "Total number of records in the ISSN register" (PDF). 2012. Retrieved 09 September 2012.
4. ^
5. ^ Dublin Core: ResourceIdentifierGuidelines: 4.5 ISSN
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