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2026

Archived version 1 of 2. This is how the model read before it was corrected. It is shown read only. The current version is here.

Creative Commons Attribution-ShareAlike 4.0 International

Also known as Attribution ShareAlike 4.0 International, Attribution-ShareAlike 4.0, Attribution-ShareAlike 4.0 International, CC BY SA 4.0, CC BY SA 4.0 International, CC BY-SA 4.0, CC BY-SA 4.0 International, CC-BY-SA 4.0, CC-BY-SA 4.0 International, Creative Commons BY-SA 4.0, Creative Commons BY-SA 4.0 International.

Commercial use
allowed
Share alike
required
Attribution
required (keep the copyright and license notices)
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Canonical URI https://dalicc.net/licenselibrary/CC-BY-SA-4.0

Permissions

  • Commercial use from the text Using the work to generate income, directly or indirectly, for example by selling it or by using it in advertising.
  • Derivative works from the text Distributing an adaptation of the work and making it available to the public.
  • Derive from the text Creating a new work from the work, such as a translation, adaptation or arrangement of it or of a part of it.

    Duties

    • Attribution from the text Giving credit to the copyright holders or authors of the work, in the form the licensor asks for.
    • Modification notice from the text Marking a changed work as changed, saying how it differs from the original and keeping earlier notices of change.
    • Notice from the text Notice: keeping the license and copyright notices with every copy.
  • Display from the text Showing the work to the public without making a copy the viewer keeps.
  • Distribute from the text Providing copies of the work to the public or to anyone else.

    Duties

    • Attribution from the text Giving credit to the copyright holders or authors of the work, in the form the licensor asks for.
    • Notice from the text Notice: keeping the license and copyright notices with every copy.
  • Modified works from the text Distributing a modified version of the work that does not amount to a new, derivative work.
  • Modify from the text Altering the work, for example by updating it, without creating a new work; an alteration that creates a new work is Derive.

    Duties

    • Attribution from the text Giving credit to the copyright holders or authors of the work, in the form the licensor asks for.
    • Modification notice from the text Marking a changed work as changed, saying how it differs from the original and keeping earlier notices of change.
    • Notice from the text Notice: keeping the license and copyright notices with every copy.
  • Present from the text Performing the work in public, including by broadcast or other communication to the public.
  • Reproduce from the text Making copies of the work in any form.

Prohibitions

  • Change license from the text Not permitted: Change license. Replacing the license of the work, or of an adaptation, with another license, or changing its terms.
  • Promote from the text Not permitted: Promote. Using the name or trademarks of the licensor or of contributors to endorse or promote a product.

License-wide duties

  • Share alike from the text Adaptations have to be licensed under the same license or one the license names as compatible.

Clauses

Warranty disclaimer

Unless otherwise separately undertaken by the Licensor, to the extent possible, the Licensor offers the Licensed Material as-is and as-available, and makes no representations or warranties of any kind concerning the Licensed Material, whether express, implied, statutory, or other. This includes, without limitation, warranties of title, merchantability, fitness for a particular purpose, non-infringement, absence of latent or other defects, accuracy, or the presence or absence of errors, whether or not known or discoverable. Where disclaimers of warranties are not allowed in full or in part, this disclaimer may not apply to You.

Limitation of liability

To the extent possible, in no event will the Licensor be liable to You on any legal theory (including, without limitation, negligence) or otherwise for any direct, special, indirect, incidental, consequential, punitive, exemplary, or other losses, costs, expenses, or damages arising out of this Public License or use of the Licensed Material, even if the Licensor has been advised of the possibility of such losses, costs, expenses, or damages. Where a limitation of liability is not allowed in full or in part, this limitation may not apply to You.

Info

Target asset types
Creative work (i.e. text, picture, sound, movie), Dataset
Region / jurisdiction
Worldwide
Validity
Perpetual
Source
https://creativecommons.org/licenses/by-sa/4.0/
Legal code
https://creativecommons.org/licenses/by-sa/4.0/legalcode
This description is published under
https://dalicc.net/licenselibrary/CC-BY-4.0
Publisher
Creative Commons
SPDX identifier
CC-BY-SA-4.0 (provisional, the record declares none)
DALICC identifier
CC-BY-SA-4.0

This record is published under CC BY 4.0. Credit it as: DALICC License Library, DALICC - Verein zur Förderung der Rechtssicherheit in der Datenbewirtschaftung, https://dalicc.net, CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). The license it describes belongs to its publisher.

History

This license model has 2 versions. Version 2 is the one served today; every earlier version keeps its own address, so a conclusion drawn from one of them can still be checked against it.

  1. Version 2 current2026-09-24 Giray Havur

    The content review of 2026-09-15 added 1 identification detail, 1 permission and 1 prohibition and recorded the review state. Later changes recorded what the text says about the database right, recorded when the license ends on a breach, named the license the record itself is published under and recorded the licenses a work under it may be released under.

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    10 changes

    • added dalicc:reviewStatus dalicc:Reviewed

      Review state Every record records how far it has come in the editorial workflow and when it was last checked against the legal text.

    • added dalicc:reviewedOn "2026-09-15"^^xsd:date

      Review state Every record records how far it has come in the editorial workflow and when it was last checked against the legal text.

    • added permission dalicc:chargeDistributionFee

      Review finding dalicc:chargeDistributionFee was missing, although the other four 4.0 records and all 287 Creative Commons ports of the library carry it, and nothing in this licence limits what the licensee may charge: Section 2(a)(1) grants the rights royalty-free and commercial use is expressly permitted. Section 4 of the legal code, the sui generis database rights section, says nothing about fees either. Added, so that the six records of the 4.0 set model the fee question identically. This was flagged before the review in the review of duplicates (see the review method, docs/LICENSE_REVIEW.md section 3).

    • added prohibition dalicc:sublicense

      Review decision Review decision 1: every Creative Commons record except the CC0 dedication, plus the Open Database License and the Open Data Commons Attribution License, forbids sublicensing in as many words.

    • added spdx:licenseId "CC-BY-SA-4.0"

      Review finding The record carried no SPDX identifier although its own DALICC identifier is the SPDX list identifier CC-BY-SA-4.0, whose SPDX seeAlso URL is the cc:legalcode of this record. Added.

    • added permission dalicc:suiGenerisDatabaseRights with duties [cc:Attribution, cc:Notice]

      Manual edit Section 4 of the 4.0 text grants the database right where it applies: "for the avoidance of doubt, Section 2(a)(1) grants You the right to extract, reuse, reproduce, and Share all or a substantial portion of the contents of the database", and Section 4(c) carries the conditions of Section 3(a) over to it. dalicc:suiGenerisDatabaseRights is now permitted, with the attribution and notice duties of the copyright grant.

    • added dalicc:curePeriod "30 days"

      Manual edit Section 6(b) reinstates the rights "automatically as of the date the violation is cured, provided it is cured within 30 days of Your discovery of the violation".

    • added dalicc:terminatesOnBreach "true"^^xsd:boolean

      Manual edit Section 6(a) reads: "However, if You fail to comply with this Public License, then Your rights under this Public License terminate automatically."

    • added dct:license <https://creativecommons.org/licenses/by/4.0/>

      Manual edit Every record is published under CC BY 4.0. cc:license names the record DALICC keeps of that licence; dct:license now names it by the address Creative Commons publishes it at, so that a consumer matching the canonical IRI finds it.

    • added dalicc:compatibleWith dalicclib:GPL-3.0-only

      Manual edit The Creative Commons list of compatible licenses (https://creativecommons.org/share-your-work/licensing-considerations/compatible-licenses) names the "GNU General Public License version 3" as compatible with BY-SA 4.0, one way: an adaptation of BY-SA 4.0 material may be released under GPL-3.0, and not the other way round.

  2. Version 1

    The version this model had before the content review of 2026-09-15.

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Every change names the reason behind it: a finding of the content review, one of its library-wide decisions, the metadata that review wrote onto every record, or a hand edit. None of it is legal advice.

Nothing on this page is legal advice. What a license means is decided by its text; ask a legal advisor before you rely on it.