File:Visual demonstration of a file usurpation.png

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Summary

Description	English: A visual demonstration of a file "usurpation" or "usurp" For the purpose of this demonstration, assume each edit was made by a different user The bottom of the four images below contains the original upload. The second to bottom of the four images below contains some legitimate edit to the file, such as a crop or brightness adjustment. There can be any number of legitimate edits between the original and the usurp, including zero edits, it does not change how usurpation works. The third from bottom of four images is the usurpation. It could be vandalism, but more often it's someone who just didn't look at what he or she was doing, or saw and didn't care. The top image is a reversion to a previous version of the file. Note that as with the second from bottom image, there could be any number of additional edits after the usurpation, including zero. If there is any possible use for the original image, however, the usurpation should be reuploaded under another name and the original image should be restored. Finally, for people that let their cameras name their images for them, or use very short names, my experience in working with files shows that the more common the file name, the more likely it is to get usurped.
Date	17 August 2011
Source	Own work
Author	Sven Manguard

Licensing

Licensing and permission statement

This file was created by Wikipedia/Wikimedia editor Sven Manguard, and is available under the following licenses:

This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.

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attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.

You are free:

to share – to copy, distribute and transmit the work
to remix – to adapt the work

Under the following conditions:

attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

This image was first published under the Creative Commons Attribution-ShareAlike 3.0 Unported (CC-BY-SA 3.0) license, and was re-licensed on 5 April 2014. Because Creative Commons licenses are irrevocable, the old license is still valid and you may release derivatives of this work under either the CC-BY-SA 3.0 license, CC-BY-SA 4.0 license, or both. If you release derivatives only under the CC-BY-SA 3.0 license, you must change "4.0" to "3.0" in the attribution statements given below. If you chose to release derivatives under both licenses, you must change "4.0" to "3.0 and 4.0" in the attribution statements given below.

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Long form: "© Wikipedia user Sven Manguard, released under the Creative Commons Attribution-Share Alike 4.0 International (CC-BY-SA 4.0) license. The original work is located at https://commons.wikimedia.org/wiki/File:Visual_demonstration_of_a_file_usurpation.png."

The short form version is provided for cases where space is at a premium, such as single page brochures or newspaper bylines. In cases where it is feasible to do so, the licensor requests that the long form version be used. In works where all of the credits are located in one place, such as an appendix, it is perfectly acceptable to list the attribution there.

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You may use either the short form or the long form from above. If you use the short form, turn the entire statement into a hyperlink to https://commons.wikimedia.org/wiki/File:Visual_demonstration_of_a_file_usurpation.png. In works where all of the credits are located in one place, such as a credits page, it is perfectly acceptable to list the attribution there.
Hyperlinking the image itself to https://commons.wikimedia.org/wiki/File:Visual_demonstration_of_a_file_usurpation.png is an acceptable alternative to providing a written attribution statement.

General notes

You do not need to bold the attribution statement. That (along with the quotation marks) on this page solely for visual emphasis.
The licensor requests the use of "Wikipedia user Sven Manguard" instead of "Sven Manguard", as the name "Sven Manguard" is a pseudonym. The licensor has chosen not to link his real name to his Wikipedia/Wikimedia account. Even if the licensor's real name is known to you, please use "Wikipedia user Sven Manguard". The use of pseudonyms in attribution statements is allowed under Section 3(a)(1)(A)(i) of the license.

If you have any questions about this image, the reuse of this image, or the reuse of Creative Commons licensed works in general, feel free to leave me a message on my English Wikipedia talk page or send me an email.

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File history

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	Date/Time	Dimensions	User	Comment
current	08:41, 17 August 2011	400 × 250 (13 KB)	Sven Manguard	Slide 4
	08:41, 17 August 2011	400 × 250 (12 KB)	Sven Manguard	Slide 3
	08:40, 17 August 2011	400 × 250 (8 KB)	Sven Manguard	Slide 2
	08:40, 17 August 2011	400 × 250 (7 KB)	Sven Manguard

File usage

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File:Visual demonstration of a file usurpation.png

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Creative Commons Attribution-ShareAlike 4.0 International

inception

17 August 2011

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