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Wikipedia:Verifiability

Also known as WP:V, WP:VERIFY, WP:SOURCE

Wikipedia policy on verifiability of information

AI overview

Wikipedia's verifiability policy requires that any information added to Wikipedia articles must be based on reliable published sources so that readers can check the facts for themselves. This matters because it helps ensure that Wikipedia contains accurate information and prevents misinformation from being presented as fact.

AI-generated from the Wikipedia summary — may contain errors.

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inception: 2003-08-02

Sources (2)

via Wikidata · CC0

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Article

In the English Wikipedia, verifiability means that people can check that facts or claims correspond to reliable sources. Wikipedia's content is determined by published information rather than editors' beliefs, experiences, or previously unpublished ideas or information. Even if you are sure something is true, it must have been published in a reliable source before you can add it. If reliable sources disagree with each other, then maintain a neutral point of view and present what the various sources say, giving each side its due weight.

Each fact or claim in an article must be verifiable. Additionally, four types of information must be accompanied by an inline citation to a reliable source that directly supports the material: