Wikipedia:Verifiability/Jguk's version

For vandalism, see Vandalism (WP:VAND).''

Wikipedia should only publish material that is verifiable. Verifiability is one of Wikipedia's four content-guiding policy pages. The other three are No original research, Neutral point of view and What Wikipedia is not. These policies, which have mandatory application, are complementary and should not be interpreted in isolation.

Citing sources
The burden of evidence lies with the editors who have made the edit or wish the edit to remain. Editors should therefore provide references. If an article topic has no reputable sources, Wikipedia should not have an article on that topic. Any edit lacking a source may be removed, but do not remove large tracts of Wikipedia without first giving people a chance to provide references to support its inclusion. If you doubt the accuracy or origin of an unsourced statement that has been in an article for a long time, delete it or move it to the talk page. Alternatively, you may tag the article by adding the, or  templates. If the article has many unsourced statements that have been there a long time, you may request sources on the talk page before removing them, unless the article or information is about a living person, in which case remove the unsourced information. When removing information be very careful to do so politely and civilly.

For more information on citing sources including how best to cite sources, see Citing sources.

Reputable sources
Just because information is sourced doesn't mean that it is acceptable to add it to Wikipedia. Certainly it has to be noteworthy and relevant, but those issues are outside the scope of this policy and so not discussed here. With regards to Verifiability, the source has to have a good reputation for accuracy for the sort of information it is being used to reference. If you are concerned as to whether any given source is reputable or not, first discuss it on the talk page. Also remember that for an encyclopaedia sources should be appropriate to the claims made: outlandish claims beg strong sources. See Reliable sources for more information. If your concerns are still not resolved, or if the same source is used on a large number of articles, consider raising the issue on Wikipedia talk:Verifiability, Requests for comment or the WikiEN-l mailing list.

Other comments
Just because some information is verifiable, doesn't mean that Wikipedia is the right place to publish it. See what Wikipedia is not. Another effect of this policy is that as original research will not be supported by reputable sources, it cannot be included. See No original research.