Similar to CC-BY-4.0 but requires derivatives be distributed under the same or a similar, compatible license. Frequently used for media assets and educational materials. A previous version is the default license for Wikipedia and other Wikimedia projects. Not recommended for software.
Attribution-ShareAlike 4.0 International=======================================================================Creative Commons Corporation ("Creative Commons") is not a law firm anddoes not provide legal services or legal advice. Distribution ofCreative Commons public licenses does not create a lawyer-client orother relationship. Creative Commons makes its licenses and relatedinformation available on an "as-is" basis. Creative Commons gives nowarranties regarding its licenses, any material licensed under theirterms and conditions, or any related information. Creative Commonsdisclaims all liability for damages resulting from their use to thefullest extent possible.Using Creative Commons Public LicensesCreative Commons public licenses provide a standard set of terms andconditions that creators and other rights holders may use to shareoriginal works of authorship and other material subject to copyrightand certain other rights specified in the public license below. Thefollowing considerations are for informational purposes only, are notexhaustive, and do not form part of our licenses.Considerations for licensors: Our public licenses areintended for use by those authorized to give the publicpermission to use material in ways otherwise restricted bycopyright and certain other rights. Our licenses areirrevocable. Licensors should read and understand the termsand conditions of the license they choose before applying it.Licensors should also secure all rights necessary beforeapplying our licenses so that the public can reuse thematerial as expected. Licensors should clearly mark anymaterial not subject to the license. This includes other CC-licensed material, or material used under an exception orlimitation to copyright. More considerations for licensors:wiki.creativecommons.org/Considerations_for_licensorsConsiderations for the public: By using one of our publiclicenses, a licensor grants the public permission to use thelicensed material under specified terms and conditions. Ifthe licensor's permission is not necessary for any reason--forexample, because of any applicable exception or limitation tocopyright--then that use is not regulated by the license. Ourlicenses grant only permissions under copyright and certainother rights that a licensor has authority to grant. Use ofthe licensed material may still be restricted for otherreasons, including because others have copyright or otherrights in the material. A licensor may make special requests,such as asking that all changes be marked or described.Although not required by our licenses, you are encouraged torespect those requests where reasonable. More_considerationsfor the public:wiki.creativecommons.org/Considerations_for_licensees=======================================================================Creative Commons Attribution-ShareAlike 4.0 International PublicLicenseBy exercising the Licensed Rights (defined below), You accept and agreeto be bound by the terms and conditions of this Creative CommonsAttribution-ShareAlike 4.0 International Public License ("PublicLicense"). To the extent this Public License may be interpreted as acontract, You are granted the Licensed Rights in consideration of Youracceptance of these terms and conditions, and the Licensor grants Yousuch rights in consideration of benefits the Licensor receives frommaking the Licensed Material available under these terms andconditions.Section 1 -- Definitions.a. Adapted Material means material subject to Copyright and SimilarRights that is derived from or based upon the Licensed Materialand in which the Licensed Material is translated, altered,arranged, transformed, or otherwise modified in a manner requiringpermission under the Copyright and Similar Rights held by theLicensor. For purposes of this Public License, where the LicensedMaterial is a musical work, performance, or sound recording,Adapted Material is always produced where the Licensed Material issynched in timed relation with a moving image.b. Adapter's License means the license You apply to Your Copyrightand Similar Rights in Your contributions to Adapted Material inaccordance with the terms and conditions of this Public License.c. BY-SA Compatible License means a license listed atcreativecommons.org/compatiblelicenses, approved by CreativeCommons as essentially the equivalent of this Public License.d. Copyright and Similar Rights means copyright and/or similar rightsclosely related to copyright including, without limitation,performance, broadcast, sound recording, and Sui Generis DatabaseRights, without regard to how the rights are labeled orcategorized. For purposes of this Public License, the rightsspecified in Section 2(b)(1)-(2) are not Copyright and SimilarRights.e. Effective Technological Measures means those measures that, in theabsence of proper authority, may not be circumvented under lawsfulfilling obligations under Article 11 of the WIPO CopyrightTreaty adopted on December 20, 1996, and/or similar internationalagreements.f. Exceptions and Limitations means fair use, fair dealing, and/orany other exception or limitation to Copyright and Similar Rightsthat applies to Your use of the Licensed Material.g. License Elements means the license attributes listed in the nameof a Creative Commons Public License. The License Elements of thisPublic License are Attribution and ShareAlike.h. Licensed Material means the artistic or literary work, database,or other material to which the Licensor applied this PublicLicense.i. Licensed Rights means the rights granted to You subject to theterms and conditions of this Public License, which are limited toall Copyright and Similar Rights that apply to Your use of theLicensed Material and that the Licensor has authority to license.j. Licensor means the individual(s) or entity(ies) granting rightsunder this Public License.k. Share means to provide material to the public by any means orprocess that requires permission under the Licensed Rights, suchas reproduction, public display, public performance, distribution,dissemination, communication, or importation, and to make materialavailable to the public including in ways that members of thepublic may access the material from a place and at a timeindividually chosen by them.l. Sui Generis Database Rights means rights other than copyrightresulting from Directive 96/9/EC of the European Parliament and ofthe Council of 11 March 1996 on the legal protection of databases,as amended and/or succeeded, as well as other essentiallyequivalent rights anywhere in the world.m. You means the individual or entity exercising the Licensed Rightsunder this Public License. Your has a corresponding meaning.Section 2 -- Scope.a. License grant.1. Subject to the terms and conditions of this Public License,the Licensor hereby grants You a worldwide, royalty-free,non-sublicensable, non-exclusive, irrevocable license toexercise the Licensed Rights in the Licensed Material to:a. reproduce and Share the Licensed Material, in whole orin part; andb. produce, reproduce, and Share Adapted Material.2. Exceptions and Limitations. For the avoidance of doubt, whereExceptions and Limitations apply to Your use, this PublicLicense does not apply, and You do not need to comply withits terms and conditions.3. Term. The term of this Public License is specified in Section6(a).4. Media and formats; technical modifications allowed. TheLicensor authorizes You to exercise the Licensed Rights inall media and formats whether now known or hereafter created,and to make technical modifications necessary to do so. TheLicensor waives and/or agrees not to assert any right orauthority to forbid You from making technical modificationsnecessary to exercise the Licensed Rights, includingtechnical modifications necessary to circumvent EffectiveTechnological Measures. For purposes of this Public License,simply making modifications authorized by this Section 2(a)(4) never produces Adapted Material.5. Downstream recipients.a. Offer from the Licensor -- Licensed Material. Everyrecipient of the Licensed Material automaticallyreceives an offer from the Licensor to exercise theLicensed Rights under the terms and conditions of thisPublic License.b. Additional offer from the Licensor -- Adapted Material.Every recipient of Adapted Material from Youautomatically receives an offer from the Licensor toexercise the Licensed Rights in the Adapted Materialunder the conditions of the Adapter's License You apply.c. No downstream restrictions. You may not offer or imposeany additional or different terms or conditions on, orapply any Effective Technological Measures to, theLicensed Material if doing so restricts exercise of theLicensed Rights by any recipient of the LicensedMaterial.6. No endorsement. Nothing in this Public License constitutes ormay be construed as permission to assert or imply that Youare, or that Your use of the Licensed Material is, connectedwith, or sponsored, endorsed, or granted official status by,the Licensor or others designated to receive attribution asprovided in Section 3(a)(1)(A)(i).b. Other rights.1. Moral rights, such as the right of integrity, are notlicensed under this Public License, nor are publicity,privacy, and/or other similar personality rights; however, tothe extent possible, the Licensor waives and/or agrees not toassert any such rights held by the Licensor to the limitedextent necessary to allow You to exercise the LicensedRights, but not otherwise.2. Patent and trademark rights are not licensed under thisPublic License.3. To the extent possible, the Licensor waives any right tocollect royalties from You for the exercise of the LicensedRights, whether directly or through a collecting societyunder any voluntary or waivable statutory or compulsorylicensing scheme. In all other cases the Licensor expresslyreserves any right to collect such royalties.Section 3 -- License Conditions.Your exercise of the Licensed Rights is expressly made subject to thefollowing conditions.a. Attribution.1. If You Share the Licensed Material (including in modifiedform), You must:a. retain the following if it is supplied by the Licensorwith the Licensed Material:i. identification of the creator(s) of the LicensedMaterial and any others designated to receiveattribution, in any reasonable manner requested bythe Licensor (including by pseudonym ifdesignated);ii. a copyright notice;iii. a notice that refers to this Public License;iv. a notice that refers to the disclaimer ofwarranties;v. a URI or hyperlink to the Licensed Material to theextent reasonably practicable;b. indicate if You modified the Licensed Material andretain an indication of any previous modifications; andc. indicate the Licensed Material is licensed under thisPublic License, and include the text of, or the URI orhyperlink to, this Public License.2. You may satisfy the conditions in Section 3(a)(1) in anyreasonable manner based on the medium, means, and context inwhich You Share the Licensed Material. For example, it may bereasonable to satisfy the conditions by providing a URI orhyperlink to a resource that includes the requiredinformation.3. If requested by the Licensor, You must remove any of theinformation required by Section 3(a)(1)(A) to the extentreasonably practicable.b. ShareAlike.In addition to the conditions in Section 3(a), if You ShareAdapted Material You produce, the following conditions also apply.1. The Adapter's License You apply must be a Creative Commonslicense with the same License Elements, this version orlater, or a BY-SA Compatible License.2. You must include the text of, or the URI or hyperlink to, theAdapter's License You apply. You may satisfy this conditionin any reasonable manner based on the medium, means, andcontext in which You Share Adapted Material.3. You may not offer or impose any additional or different termsor conditions on, or apply any Effective TechnologicalMeasures to, Adapted Material that restrict exercise of therights granted under the Adapter's License You apply.Section 4 -- Sui Generis Database Rights.Where the Licensed Rights include Sui Generis Database Rights thatapply to Your use of the Licensed Material:a. for the avoidance of doubt, Section 2(a)(1) grants You the rightto extract, reuse, reproduce, and Share all or a substantialportion of the contents of the database;b. if You include all or a substantial portion of the databasecontents in a database in which You have Sui Generis DatabaseRights, then the database in which You have Sui Generis DatabaseRights (but not its individual contents) is Adapted Material,including for purposes of Section 3(b); andc. You must comply with the conditions in Section 3(a) if You Shareall or a substantial portion of the contents of the database.For the avoidance of doubt, this Section 4 supplements and does notreplace Your obligations under this Public License where the LicensedRights include other Copyright and Similar Rights.Section 5 -- Disclaimer of Warranties and Limitation of Liability.a. UNLESS OTHERWISE SEPARATELY UNDERTAKEN BY THE LICENSOR, TO THEEXTENT POSSIBLE, THE LICENSOR OFFERS THE LICENSED MATERIAL AS-ISAND AS-AVAILABLE, AND MAKES NO REPRESENTATIONS OR WARRANTIES OFANY KIND CONCERNING THE LICENSED MATERIAL, WHETHER EXPRESS,IMPLIED, STATUTORY, OR OTHER. THIS INCLUDES, WITHOUT LIMITATION,WARRANTIES OF TITLE, MERCHANTABILITY, FITNESS FOR A PARTICULARPURPOSE, NON-INFRINGEMENT, ABSENCE OF LATENT OR OTHER DEFECTS,ACCURACY, OR THE PRESENCE OR ABSENCE OF ERRORS, WHETHER OR NOTKNOWN OR DISCOVERABLE. WHERE DISCLAIMERS OF WARRANTIES ARE NOTALLOWED IN FULL OR IN PART, THIS DISCLAIMER MAY NOT APPLY TO YOU.b. TO THE EXTENT POSSIBLE, IN NO EVENT WILL THE LICENSOR BE LIABLETO 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 ORUSE OF THE LICENSED MATERIAL, EVEN IF THE LICENSOR HAS BEENADVISED OF THE POSSIBILITY OF SUCH LOSSES, COSTS, EXPENSES, ORDAMAGES. WHERE A LIMITATION OF LIABILITY IS NOT ALLOWED IN FULL ORIN PART, THIS LIMITATION MAY NOT APPLY TO YOU.c. The disclaimer of warranties and limitation of liability providedabove shall be interpreted in a manner that, to the extentpossible, most closely approximates an absolute disclaimer andwaiver of all liability.Section 6 -- Term and Termination.a. This Public License applies for the term of the Copyright andSimilar Rights licensed here. However, if You fail to comply withthis Public License, then Your rights under this Public Licenseterminate automatically.b. Where Your right to use the Licensed Material has terminated underSection 6(a), it reinstates:1. automatically as of the date the violation is cured, providedit is cured within 30 days of Your discovery of theviolation; or2. upon express reinstatement by the Licensor.For the avoidance of doubt, this Section 6(b) does not affect anyright the Licensor may have to seek remedies for Your violationsof this Public License.c. For the avoidance of doubt, the Licensor may also offer theLicensed Material under separate terms or conditions or stopdistributing the Licensed Material at any time; however, doing sowill not terminate this Public License.d. Sections 1, 5, 6, 7, and 8 survive termination of this PublicLicense.Section 7 -- Other Terms and Conditions.a. The Licensor shall not be bound by any additional or differentterms or conditions communicated by You unless expressly agreed.b. Any arrangements, understandings, or agreements regarding theLicensed Material not stated herein are separate from andindependent of the terms and conditions of this Public License.Section 8 -- Interpretation.a. For the avoidance of doubt, this Public License does not, andshall not be interpreted to, reduce, limit, restrict, or imposeconditions on any use of the Licensed Material that could lawfullybe made without permission under this Public License.b. To the extent possible, if any provision of this Public License isdeemed unenforceable, it shall be automatically reformed to theminimum extent necessary to make it enforceable. If the provisioncannot be reformed, it shall be severed from this Public Licensewithout affecting the enforceability of the remaining terms andconditions.c. No term or condition of this Public License will be waived and nofailure to comply consented to unless expressly agreed to by theLicensor.d. Nothing in this Public License constitutes or may be interpretedas a limitation upon, or waiver of, any privileges and immunitiesthat apply to the Licensor or You, including from the legalprocesses of any jurisdiction or authority.=======================================================================Creative Commons is not a party to its publiclicenses. Notwithstanding, Creative Commons may elect to apply one ofits public licenses to material it publishes and in those instanceswill be considered the “Licensor.” The text of the Creative Commonspublic licenses is dedicated to the public domain under the CC0 PublicDomain Dedication. Except for the limited purpose of indicating thatmaterial is shared under a Creative Commons public license or asotherwise permitted by the Creative Commons policies published atcreativecommons.org/policies, Creative Commons does not authorize theuse of the trademark "Creative Commons" or any other trademark or logoof Creative Commons without its prior written consent including,without limitation, in connection with any unauthorized modificationsto any of its public licenses or any other arrangements,understandings, or agreements concerning use of licensed material. Forthe avoidance of doubt, this paragraph does not form part of thepublic licenses.Creative Commons may be contacted at creativecommons.org.