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To confirm the check digit, calculate the sum of all eight digits of the ISSN multiplied by their position in the number, counting from the right. (If the check digit is X, add 10 to the sum.) The remainder of the sum modulo 11 must be 0. There is an online ISSN checker that can validate an ISSN, based on the above algorithm. [7]
The IFCN reviews fact-checkers for compliance with its code, and issues a certification to publishers who pass the audit. The certification lasts for one year, and fact-checkers must be re-examined annually to retain their certifications. [2] IFCN lists 170 organizations as members as of July 2024. [3]
Fact checkers certified by the IFCN have identified 25 fake news stories published by OpIndia between January 2018 and June 2020. [87] [88] Pensa Brasil pensabrasil.com Has the same Google AdSense and Google Analytics codes as AosFatos.com. [76] Plantão Brasil plantaobrasil.net Has the same Google AdSense and Google Analytics codes as AosFatos ...
Ulrich's Periodicals Directory (ISSN 0000-0175, and ISSN 0000-2100) is the standard library directory and database providing information about popular and academic magazines, scientific journals, newspapers and other serial publications. [1]
For example, The New Yorker magazine had 16 fact-checkers in 2003 [128] and the fact-checking department of the German weekly magazine Der Spiegel counted 70 staff in 2017. [130] Others may hire freelancers per piece or may combine fact-checking with other duties. Magazines are more likely to use fact-checkers than newspapers. [1]
An ISSN is particularly helpful in the following circumstances (especially when the ISSN is linked, using template or parameter detailed below): In a citation to a periodical that is relatively unknown, as the ISSN can help in verifying the existence and reliability of the journal and procuring a copy of one of its issues to verify the content.
This template uses Module:Check isxn to validate the ISSN. If the ISSN is not valid, this subtemplate will still generate the link, and it will add the article to Category:Pages with ISSN errors . To be valid, the ISSN must contain a hyphen separating the two groups of four digits.
This page was last edited on 23 February 2018, at 16:30 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.