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To quickly understand the license, you can read [https://opendatacommons.org/licenses/odbl/summary/ its official summary].
 
To quickly understand the license, you can read [https://opendatacommons.org/licenses/odbl/summary/ its official summary].
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Also note that images and contents [https://world.openfoodfacts.org/terms-of-use follow their specific license.]
    
== Why is it important? ==
 
== Why is it important? ==
 
We are working hard to promote and realize food transparency. To do so, Open Food Facts has chosen to release all of its data under ODbL license, which promotes a common pot: all derivative or mixed data has to be shared by all contributors and reusers.
 
We are working hard to promote and realize food transparency. To do so, Open Food Facts has chosen to release all of its data under ODbL license, which promotes a common pot: all derivative or mixed data has to be shared by all contributors and reusers.
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For the time being, ten thousands of contributors and dozens of organizations are collaboratively participating in this common pot. It creates a common ecosystem that benefits to all. This ecosystem is working as long as the common pot and its attribution is respected.
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For the time being, dozens of thousands contributors and dozens of organizations are collaboratively participating in this common pot. It creates a common ecosystem that benefits to all. This ecosystem is working as long as the common pot and its attribution is respected.
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Open Food Facts respects people or organizations that doesn’t want, or are not allowed, to share their data in the common pot, or respect attribution, but consequently, they are not allowed to reuse Open Food Facts data: it is not allowed by the ODbL License and it would weaken the whole ecosystem.
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Open Food Facts respects people or organizations that don’t want, or are not allowed, to share their data in the common pot, or respect attribution, but consequently, they are not allowed to reuse Open Food Facts data: it is not allowed by the ODbL License, and it would weaken the whole ecosystem.
    
== ODbL Summary ==
 
== ODbL Summary ==
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== How to? ==
 
== How to? ==
To clearly mention '''attribution''', we suggest that you put the following text on each page or screen where Open Food Facts data is used: <code>(c) Open Food Facts contributors</code>, with a link to https://world.openfoodfacts.org/terms-of-use or https://world.openfoodfacts.org.
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To clearly mention '''attribution''', we suggest that you put the following text on each page or screen where Open Food Facts data is used: <code>(c) Open Food Facts contributors</code>, with a link to https://world.openfoodfacts.org/terms-of-use or https://world.openfoodfacts.org. Mention of attribution should be seen:
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* On the app's presentation page on the Google Play store or Apple app store.
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* On the app's presentation page on your website, if any.
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* On your app or your website: on each page or screen where you are showing data provided by Open Food Facts contributors.
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* And finally in the "legal" page of your app or product (legal, terms of use, etc.).
    
To respect the '''Share-Alike''' clause, the best way is to share back all modified data or data mixed with Open Food Facts data, directly into Open Food Facts Database. There are different options depending on the volume.
 
To respect the '''Share-Alike''' clause, the best way is to share back all modified data or data mixed with Open Food Facts data, directly into Open Food Facts Database. There are different options depending on the volume.
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* If you have important amounts of data, you can use the [[API|Open Food Facts API]] to share back new data or data improvements.
 
* If you have important amounts of data, you can use the [[API|Open Food Facts API]] to share back new data or data improvements.
 
* You can also mass import your data, thanks to the "producer platform": please contact us at contact@openfoodfacts.org.
 
* You can also mass import your data, thanks to the "producer platform": please contact us at contact@openfoodfacts.org.
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=== Tip ===
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It is a good practice to put a small link to the equivalent product on Open Food Facts, that’s especially useful if some user spot an issue, and it does the ODbL compliance at the same time.
    
== See also ==
 
== See also ==
 
* https://world.openfoodfacts.org/terms-of-use
 
* https://world.openfoodfacts.org/terms-of-use
 
* [[ODBL non-compliance]]
 
* [[ODBL non-compliance]]
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* [https://wiki.osmfoundation.org/wiki/Licence/Licence_and_Legal_FAQ#How_should_I_attribute_you.3F How should I attribute you?], on the OpenStreetMap Foundation website
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[[Category:Reuse]]
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[[Category:Legal]]
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[[Category:Open Food Facts policies and guidelines]]

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