key: cc-by-4.0
short_name: CC-BY-4.0
name: Creative Commons Attribution 4.0 International Public License
category: Permissive
owner: Creative Commons
homepage_url: http://creativecommons.org/licenses/by/4.0/
spdx_license_key: CC-BY-4.0
text_urls:
  - http://creativecommons.org/licenses/by/4.0/legalcode
other_urls:
  - https://creativecommons.org/licenses/by/4.0/legalcode
text: "Attribution 4.0 International\n\n=======================================================================\n\
  \nCreative Commons Corporation (\"Creative Commons\") is not a law firm and\ndoes not provide\
  \ legal services or legal advice. Distribution of\nCreative Commons public licenses does not\
  \ create a lawyer-client or\nother relationship. Creative Commons makes its licenses and related\n\
  information available on an \"as-is\" basis. Creative Commons gives no\nwarranties regarding\
  \ its licenses, any material licensed under their\nterms and conditions, or any related information.\
  \ Creative Commons\ndisclaims all liability for damages resulting from their use to the\n\
  fullest extent possible.\n\nUsing Creative Commons Public Licenses\n\nCreative Commons public\
  \ licenses provide a standard set of terms and\nconditions that creators and other rights\
  \ holders may use to share\noriginal works of authorship and other material subject to copyright\n\
  and certain other rights specified in the public license below. The\nfollowing considerations\
  \ are for informational purposes only, are not\nexhaustive, and do not form part of our licenses.\n\
  \n     Considerations for licensors: Our public licenses are\n     intended for use by those\
  \ authorized to give the public\n     permission to use material in ways otherwise restricted\
  \ by\n     copyright and certain other rights. Our licenses are\n     irrevocable. Licensors\
  \ should read and understand the terms\n     and conditions of the license they choose before\
  \ applying it.\n     Licensors should also secure all rights necessary before\n     applying\
  \ our licenses so that the public can reuse the\n     material as expected. Licensors should\
  \ clearly mark any\n     material not subject to the license. This includes other CC-\n  \
  \   licensed material, or material used under an exception or\n     limitation to copyright.\
  \ More considerations for licensors:\n\twiki.creativecommons.org/Considerations_for_licensors\n\
  \n     Considerations for the public: By using one of our public\n     licenses, a licensor\
  \ grants the public permission to use the\n     licensed material under specified terms and\
  \ conditions. If\n     the licensor's permission is not necessary for any reason--for\n  \
  \   example, because of any applicable exception or limitation to\n     copyright--then that\
  \ use is not regulated by the license. Our\n     licenses grant only permissions under copyright\
  \ and certain\n     other rights that a licensor has authority to grant. Use of\n     the\
  \ licensed material may still be restricted for other\n     reasons, including because others\
  \ have copyright or other\n     rights in the material. A licensor may make special requests,\n\
  \     such as asking that all changes be marked or described.\n     Although not required\
  \ by our licenses, you are encouraged to\n     respect those requests where reasonable. More\
  \ considerations\n     for the public: \n\twiki.creativecommons.org/Considerations_for_licensees\n\
  \n=======================================================================\n\nCreative Commons\
  \ Attribution 4.0 International Public License\n\nBy exercising the Licensed Rights (defined\
  \ below), You accept and agree\nto be bound by the terms and conditions of this Creative Commons\n\
  Attribution 4.0 International Public License (\"Public License\"). To the\nextent this Public\
  \ License may be interpreted as a contract, You are\ngranted the Licensed Rights in consideration\
  \ of Your acceptance of\nthese terms and conditions, and the Licensor grants You such rights\
  \ in\nconsideration of benefits the Licensor receives from making the\nLicensed Material available\
  \ under these terms and conditions.\n\n\nSection 1 -- Definitions.\n\n  a. Adapted Material\
  \ means material subject to Copyright and Similar\n     Rights that is derived from or based\
  \ upon the Licensed Material\n     and in which the Licensed Material is translated, altered,\n\
  \     arranged, transformed, or otherwise modified in a manner requiring\n     permission\
  \ under the Copyright and Similar Rights held by the\n     Licensor. For purposes of this\
  \ Public License, where the Licensed\n     Material is a musical work, performance, or sound\
  \ recording,\n     Adapted Material is always produced where the Licensed Material is\n  \
  \   synched in timed relation with a moving image.\n\n  b. Adapter's License means the license\
  \ You apply to Your Copyright\n     and Similar Rights in Your contributions to Adapted Material\
  \ in\n     accordance with the terms and conditions of this Public License.\n\n  c. Copyright\
  \ and Similar Rights means copyright and/or similar rights\n     closely related to copyright\
  \ including, without limitation,\n     performance, broadcast, sound recording, and Sui Generis\
  \ Database\n     Rights, without regard to how the rights are labeled or\n     categorized.\
  \ For purposes of this Public License, the rights\n     specified in Section 2(b)(1)-(2) are\
  \ not Copyright and Similar\n     Rights.\n\n  d. Effective Technological Measures means those\
  \ measures that, in the\n     absence of proper authority, may not be circumvented under laws\n\
  \     fulfilling obligations under Article 11 of the WIPO Copyright\n     Treaty adopted on\
  \ December 20, 1996, and/or similar international\n     agreements.\n\n  e. Exceptions and\
  \ Limitations means fair use, fair dealing, and/or\n     any other exception or limitation\
  \ to Copyright and Similar Rights\n     that applies to Your use of the Licensed Material.\n\
  \n  f. Licensed Material means the artistic or literary work, database,\n     or other material\
  \ to which the Licensor applied this Public\n     License.\n\n  g. Licensed Rights means the\
  \ rights granted to You subject to the\n     terms and conditions of this Public License,\
  \ which are limited to\n     all Copyright and Similar Rights that apply to Your use of the\n\
  \     Licensed Material and that the Licensor has authority to license.\n\n  h. Licensor means\
  \ the individual(s) or entity(ies) granting rights\n     under this Public License.\n\n  i.\
  \ Share means to provide material to the public by any means or\n     process that requires\
  \ permission under the Licensed Rights, such\n     as reproduction, public display, public\
  \ performance, distribution,\n     dissemination, communication, or importation, and to make\
  \ material\n     available to the public including in ways that members of the\n     public\
  \ may access the material from a place and at a time\n     individually chosen by them.\n\n\
  \  j. Sui Generis Database Rights means rights other than copyright\n     resulting from Directive\
  \ 96/9/EC of the European Parliament and of\n     the Council of 11 March 1996 on the legal\
  \ protection of databases,\n     as amended and/or succeeded, as well as other essentially\n\
  \     equivalent rights anywhere in the world.\n\n  k. You means the individual or entity\
  \ exercising the Licensed Rights\n     under this Public License. Your has a corresponding\
  \ meaning.\n\n\nSection 2 -- Scope.\n\n  a. License grant.\n\n       1. Subject to the terms\
  \ and conditions of this Public License,\n          the Licensor hereby grants You a worldwide,\
  \ royalty-free,\n          non-sublicensable, non-exclusive, irrevocable license to\n    \
  \      exercise the Licensed Rights in the Licensed Material to:\n\n            a. reproduce\
  \ and Share the Licensed Material, in whole or\n               in part; and\n\n          \
  \  b. produce, reproduce, and Share Adapted Material.\n\n       2. Exceptions and Limitations.\
  \ For the avoidance of doubt, where\n          Exceptions and Limitations apply to Your use,\
  \ this Public\n          License does not apply, and You do not need to comply with\n    \
  \      its terms and conditions.\n\n       3. Term. The term of this Public License is specified\
  \ in Section\n          6(a).\n\n       4. Media and formats; technical modifications allowed.\
  \ The\n          Licensor authorizes You to exercise the Licensed Rights in\n          all\
  \ media and formats whether now known or hereafter created,\n          and to make technical\
  \ modifications necessary to do so. The\n          Licensor waives and/or agrees not to assert\
  \ any right or\n          authority to forbid You from making technical modifications\n  \
  \        necessary to exercise the Licensed Rights, including\n          technical modifications\
  \ necessary to circumvent Effective\n          Technological Measures. For purposes of this\
  \ Public License,\n          simply making modifications authorized by this Section 2(a)\n\
  \          (4) never produces Adapted Material.\n\n       5. Downstream recipients.\n\n  \
  \          a. Offer from the Licensor -- Licensed Material. Every\n               recipient\
  \ of the Licensed Material automatically\n               receives an offer from the Licensor\
  \ to exercise the\n               Licensed Rights under the terms and conditions of this\n\
  \               Public License.\n\n            b. No downstream restrictions. You may not\
  \ offer or impose\n               any additional or different terms or conditions on, or\n\
  \               apply any Effective Technological Measures to, the\n               Licensed\
  \ Material if doing so restricts exercise of the\n               Licensed Rights by any recipient\
  \ of the Licensed\n               Material.\n\n       6. No endorsement. Nothing in this Public\
  \ License constitutes or\n          may be construed as permission to assert or imply that\
  \ You\n          are, or that Your use of the Licensed Material is, connected\n          with,\
  \ or sponsored, endorsed, or granted official status by,\n          the Licensor or others\
  \ designated to receive attribution as\n          provided in Section 3(a)(1)(A)(i).\n\n \
  \ b. Other rights.\n\n       1. Moral rights, such as the right of integrity, are not\n  \
  \        licensed under this Public License, nor are publicity,\n          privacy, and/or\
  \ other similar personality rights; however, to\n          the extent possible, the Licensor\
  \ waives and/or agrees not to\n          assert any such rights held by the Licensor to the\
  \ limited\n          extent necessary to allow You to exercise the Licensed\n          Rights,\
  \ but not otherwise.\n\n       2. Patent and trademark rights are not licensed under this\n\
  \          Public License.\n\n       3. To the extent possible, the Licensor waives any right\
  \ to\n          collect royalties from You for the exercise of the Licensed\n          Rights,\
  \ whether directly or through a collecting society\n          under any voluntary or waivable\
  \ statutory or compulsory\n          licensing scheme. In all other cases the Licensor expressly\n\
  \          reserves any right to collect such royalties.\n\n\nSection 3 -- License Conditions.\n\
  \nYour exercise of the Licensed Rights is expressly made subject to the\nfollowing conditions.\n\
  \n  a. Attribution.\n\n       1. If You Share the Licensed Material (including in modified\n\
  \          form), You must:\n\n            a. retain the following if it is supplied by the\
  \ Licensor\n               with the Licensed Material:\n\n                 i. identification\
  \ of the creator(s) of the Licensed\n                    Material and any others designated\
  \ to receive\n                    attribution, in any reasonable manner requested by\n   \
  \                 the Licensor (including by pseudonym if\n                    designated);\n\
  \n                ii. a copyright notice;\n\n               iii. a notice that refers to this\
  \ Public License;\n\n                iv. a notice that refers to the disclaimer of\n     \
  \               warranties;\n\n                 v. a URI or hyperlink to the Licensed Material\
  \ to the\n                    extent reasonably practicable;\n\n            b. indicate if\
  \ You modified the Licensed Material and\n               retain an indication of any previous\
  \ modifications; and\n\n            c. indicate the Licensed Material is licensed under this\n\
  \               Public License, and include the text of, or the URI or\n               hyperlink\
  \ to, this Public License.\n\n       2. You may satisfy the conditions in Section 3(a)(1)\
  \ in any\n          reasonable manner based on the medium, means, and context in\n       \
  \   which You Share the Licensed Material. For example, it may be\n          reasonable to\
  \ satisfy the conditions by providing a URI or\n          hyperlink to a resource that includes\
  \ the required\n          information.\n\n       3. If requested by the Licensor, You must\
  \ remove any of the\n          information required by Section 3(a)(1)(A) to the extent\n\
  \          reasonably practicable.\n\n       4. If You Share Adapted Material You produce,\
  \ the Adapter's\n          License You apply must not prevent recipients of the Adapted\n\
  \          Material from complying with this Public License.\n\n\nSection 4 -- Sui Generis\
  \ Database Rights.\n\nWhere the Licensed Rights include Sui Generis Database Rights that\n\
  apply to Your use of the Licensed Material:\n\n  a. for the avoidance of doubt, Section 2(a)(1)\
  \ grants You the right\n     to extract, reuse, reproduce, and Share all or a substantial\n\
  \     portion of the contents of the database;\n\n  b. if You include all or a substantial\
  \ portion of the database\n     contents in a database in which You have Sui Generis Database\n\
  \     Rights, then the database in which You have Sui Generis Database\n     Rights (but not\
  \ its individual contents) is Adapted Material; and\n\n  c. You must comply with the conditions\
  \ in Section 3(a) if You Share\n     all or a substantial portion of the contents of the database.\n\
  \nFor the avoidance of doubt, this Section 4 supplements and does not\nreplace Your obligations\
  \ under this Public License where the Licensed\nRights include other Copyright and Similar\
  \ Rights.\n\n\nSection 5 -- Disclaimer of Warranties and Limitation of Liability.\n\n  a.\
  \ UNLESS OTHERWISE SEPARATELY UNDERTAKEN BY THE LICENSOR, TO THE\n     EXTENT POSSIBLE, THE\
  \ LICENSOR OFFERS THE LICENSED MATERIAL AS-IS\n     AND AS-AVAILABLE, AND MAKES NO REPRESENTATIONS\
  \ OR WARRANTIES OF\n     ANY KIND CONCERNING THE LICENSED MATERIAL, WHETHER EXPRESS,\n   \
  \  IMPLIED, STATUTORY, OR OTHER. THIS INCLUDES, WITHOUT LIMITATION,\n     WARRANTIES OF TITLE,\
  \ MERCHANTABILITY, FITNESS FOR A PARTICULAR\n     PURPOSE, NON-INFRINGEMENT, ABSENCE OF LATENT\
  \ OR OTHER DEFECTS,\n     ACCURACY, OR THE PRESENCE OR ABSENCE OF ERRORS, WHETHER OR NOT\n\
  \     KNOWN OR DISCOVERABLE. WHERE DISCLAIMERS OF WARRANTIES ARE NOT\n     ALLOWED IN FULL\
  \ OR IN PART, THIS DISCLAIMER MAY NOT APPLY TO YOU.\n\n  b. TO THE EXTENT POSSIBLE, IN NO\
  \ EVENT WILL THE LICENSOR BE LIABLE\n     TO YOU ON ANY LEGAL THEORY (INCLUDING, WITHOUT LIMITATION,\n\
  \     NEGLIGENCE) OR OTHERWISE FOR ANY DIRECT, SPECIAL, INDIRECT,\n     INCIDENTAL, CONSEQUENTIAL,\
  \ PUNITIVE, EXEMPLARY, OR OTHER LOSSES,\n     COSTS, EXPENSES, OR DAMAGES ARISING OUT OF THIS\
  \ PUBLIC LICENSE OR\n     USE OF THE LICENSED MATERIAL, EVEN IF THE LICENSOR HAS BEEN\n  \
  \   ADVISED OF THE POSSIBILITY OF SUCH LOSSES, COSTS, EXPENSES, OR\n     DAMAGES. WHERE A\
  \ LIMITATION OF LIABILITY IS NOT ALLOWED IN FULL OR\n     IN PART, THIS LIMITATION MAY NOT\
  \ APPLY TO YOU.\n\n  c. The disclaimer of warranties and limitation of liability provided\n\
  \     above shall be interpreted in a manner that, to the extent\n     possible, most closely\
  \ approximates an absolute disclaimer and\n     waiver of all liability.\n\n\nSection 6 --\
  \ Term and Termination.\n\n  a. This Public License applies for the term of the Copyright\
  \ and\n     Similar Rights licensed here. However, if You fail to comply with\n     this Public\
  \ License, then Your rights under this Public License\n     terminate automatically.\n\n \
  \ b. Where Your right to use the Licensed Material has terminated under\n     Section 6(a),\
  \ it reinstates:\n\n       1. automatically as of the date the violation is cured, provided\n\
  \          it is cured within 30 days of Your discovery of the\n          violation; or\n\n\
  \       2. upon express reinstatement by the Licensor.\n\n     For the avoidance of doubt,\
  \ this Section 6(b) does not affect any\n     right the Licensor may have to seek remedies\
  \ for Your violations\n     of this Public License.\n\n  c. For the avoidance of doubt, the\
  \ Licensor may also offer the\n     Licensed Material under separate terms or conditions or\
  \ stop\n     distributing the Licensed Material at any time; however, doing so\n     will\
  \ not terminate this Public License.\n\n  d. Sections 1, 5, 6, 7, and 8 survive termination\
  \ of this Public\n     License.\n\n\nSection 7 -- Other Terms and Conditions.\n\n  a. The\
  \ Licensor shall not be bound by any additional or different\n     terms or conditions communicated\
  \ by You unless expressly agreed.\n\n  b. Any arrangements, understandings, or agreements\
  \ regarding the\n     Licensed Material not stated herein are separate from and\n     independent\
  \ of the terms and conditions of this Public License.\n\n\nSection 8 -- Interpretation.\n\n\
  \  a. For the avoidance of doubt, this Public License does not, and\n     shall not be interpreted\
  \ to, reduce, limit, restrict, or impose\n     conditions on any use of the Licensed Material\
  \ that could lawfully\n     be made without permission under this Public License.\n\n  b.\
  \ To the extent possible, if any provision of this Public License is\n     deemed unenforceable,\
  \ it shall be automatically reformed to the\n     minimum extent necessary to make it enforceable.\
  \ If the provision\n     cannot be reformed, it shall be severed from this Public License\n\
  \     without affecting the enforceability of the remaining terms and\n     conditions.\n\n\
  \  c. No term or condition of this Public License will be waived and no\n     failure to comply\
  \ consented to unless expressly agreed to by the\n     Licensor.\n\n  d. Nothing in this Public\
  \ License constitutes or may be interpreted\n     as a limitation upon, or waiver of, any\
  \ privileges and immunities\n     that apply to the Licensor or You, including from the legal\n\
  \     processes of any jurisdiction or authority.\n\n\n=======================================================================\n\
  \nCreative Commons is not a party to its public\nlicenses. Notwithstanding, Creative Commons\
  \ may elect to apply one of\nits public licenses to material it publishes and in those instances\n\
  will be considered the “Licensor.” The text of the Creative Commons\npublic licenses is dedicated\
  \ to the public domain under the CC0 Public\nDomain Dedication. Except for the limited purpose\
  \ of indicating that\nmaterial is shared under a Creative Commons public license or as\notherwise\
  \ permitted by the Creative Commons policies published at\ncreativecommons.org/policies, Creative\
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  \ or logo\nof Creative Commons without its prior written consent including,\nwithout limitation,\
  \ in connection with any unauthorized modifications\nto any of its public licenses or any\
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  \ For\nthe avoidance of doubt, this paragraph does not form part of the\npublic licenses.\n\
  \nCreative Commons may be contacted at creativecommons.org."
