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LICENSE.txt
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METAPLEX(TM) NFT OPEN SOURCE LICENSE
Version 1.0, Oct. 2022
PREAMBLE
As the publisher of the non-fungible token (NFT) standard for the Solana
blockchain, we believe in the set of principles that have guided open source
software development models over the years – Transparency, Collaboration,
Release Early and Often, Community, and Inclusive Meritocracy. Thus, for our
code repository, we have adopted an “Apache-style” licensing scheme. To be
true to our NFT and crypto legacy, however, we do impose some restrictions on
modifying our code that we believe promote the purpose and promise of NFTs in
order to protect the web3 ecosystem.
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
BY DOWNLOADING, INSTALLING, OR OTHERWISE ACCESSING OR USING THE FILES
ACCOMPANYING THIS LICENSE, YOU AGREE THAT YOU HAVE READ, UNDERSTOOD, AND AGREE
TO BE BOUND BY THIS LICENSE. IF YOU DO NOT AGREE, YOU MAY NOT USE ANY OF THE
ACCOMPANYING FILES.
1. Definitions.
“License” means the terms and conditions for use, reproduction, and
Distribution as defined by Sections 1 through 9 of this document.
“Licensor” means the copyright owner or entity authorized by the copyright
owner that is granting the License.
“Legal Entity” means the union of the acting entity and all other entities
that control, are controlled by, or are under common control with that entity.
For the purposes of this definition, “control” means: (i) the power, direct or
indirect, to cause the direction or management of such entity, whether by
contract or otherwise, or (ii) ownership of 50% or more of the outstanding
shares, or (iii) beneficial ownership of such entity.
“You” (or “Your”) means an individual or Legal Entity exercising permissions
granted by this License.
“Source Code” means the preferred form for making modifications, including
but not limited to software source code, documentation source, and
configuration files.
“Object Code” means any form resulting from mechanical transformation or
translation of Source Code, including but not limited to compiled object code,
generated documentation, and conversions to other media types.
“Work” means the work of authorship, whether in Source Code or Object Code,
made available under the License, as indicated by a copyright notice that is
included in or attached to the work, an example is provided below:
------
Copyright © [yyyy] [name of copyright owner]
Licensed under the Metaplex(TM) NFT Open Source License, Version 1.0 (the
“License”). Use of this file is only permitted when in compliance with the
License. You may obtain a copy of the License at:
https://github.com/metaplex-foundation/
metaplex-program-library/blob/master/LICENSE
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an “AS IS” BASIS, WITHOUT
WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
License for the specific language governing permissions and limitations under
the License.
------
“Derivative Works” means any work, whether in Source Code or Object Code,
that is based on (or derived from) the Work and for which the editorial
revisions, annotations, elaborations, or other modifications represent, as a
whole, an original work of authorship. For the purposes of this License,
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without permission, would make You directly or secondarily liable for
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function as a commercial substitute for the Work such that the Derivative Work
offers materially similar functionality to a materially similar target
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whom a Contribution has been received by Licensor and subsequently
incorporated within the Work.
2. Grant of Copyright License.
Subject to the terms and conditions of this License, each Contributor hereby
grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free,
irrevocable copyright license to reproduce, prepare Derivative Works of,
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irrevocable (except as stated in this section) patent license to make, have
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thereof in any medium, with or without modifications, and in Source Code or
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then any Derivative Works that You Distribute must include a readable copy
of the attribution notices contained within such NOTICE file, excluding
those notices that do not pertain to any part of the Derivative Works, in
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Derivative Works; or
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such third-party notices normally appear.
The contents of the NOTICE file are for informational purposes only and do
not modify the License. You may add Your own attribution notices within
Derivative Works that You Distribute, alongside or as an addendum to the
NOTICE text from the Work, provided that such additional attribution
notices cannot be construed as modifying the License.
(b) You may add Your own copyright statement to Your modifications and may
provide additional or different license terms and conditions for use,
reproduction, or Distribution of Your modifications, or for any such
Derivative Works as a whole, provided Your use, reproduction, and
Distribution of the Work otherwise complies with the conditions stated in
this License.
(c) Notwithstanding any other section of this License, You may not under any
circumstances make modifications to the Work to use, produce and Distribute
a Derivative Work, in Source Code or Object Code form, that is a Competitive
Product.
5. Submission of Contributions.
Unless You explicitly state otherwise, any Contribution intentionally
submitted for inclusion in the Work by You to the Licensor shall be under the
terms and conditions of this License, without any additional terms or
conditions. Notwithstanding the above, nothing herein shall supersede or
modify the terms of any separate license agreement you may have executed with
Licensor regarding such Contributions.
6. Trademarks.
This License does not grant permission to use the trade names, trademarks,
service marks, or product names of the Licensor, except as required for
reasonable and customary use in describing the origin of the Work and
reproducing the content of the NOTICE file.
7. Disclaimer of Warranty.
Unless required by applicable law or agreed to in writing, Licensor provides
the Work (and each Contributor provides its Contributions) on an “AS IS”
BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions of TITLE,
NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You
are solely responsible for determining the appropriateness of using or
Distributing the Work and assume any risks associated with Your exercise of
permissions under this License.
8. Limitation of Liability.
In no event and under no legal theory, whether in tort (including
negligence), contract, or otherwise, unless required by applicable law (such
as deliberate and grossly negligent acts) or agreed to in writing, shall any
Contributor be liable to You for damages, including any direct, indirect,
special, incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the Work
(including but not limited to damages for loss of goodwill, work stoppage,
computer failure or malfunction, or any and all other commercial damages or
losses), even if such Contributor has been advised of the possibility of such
damages.
9. Accepting Warranty or Additional Liability.
While Distributing the Work or Derivative Works thereof, You may choose to
offer, and charge a fee for, acceptance of support, warranty, indemnity, or
other liability obligations and/or rights consistent with this License.
However, in accepting such obligations, You may act only on Your own behalf
and on Your sole responsibility, not on behalf of any other Contributor, and
only if You agree to indemnify, defend, and hold each Contributor harmless for
any liability incurred by, or claims asserted against, such Contributor by
reason of your accepting any such warranty or additional liability.
10. Revised Versions of this License.
The Metaplex Foundation may publish revised, newer versions of this License
from time to time. Such new versions will be similar in spirit to the present
version but may differ in detail to address new problems or concerns. Each
version will be given a distinguishing version number. If the Work specifies a
certain version of the Metaplex(TM) NFT Open Source License, then that version
shall apply. If the Work does not specify a version number of the Metaplex(TM)
NFT Open Source License, then the latest version published by the Metaplex
Foundation shall apply.