PiCo-1B Open RAIL-M License
Version 1.0, dated June 25, 2026


Section I: PREAMBLE

This Open RAIL-M License Agreement was created for PiCo-1B, a machine-learning
model developed by ArcOffical. This license is generally applicable to any
machine-learning Model.

This License Agreement strives for both the open and responsible Use of the
accompanying Model. Openness here is understood as enabling users of the Model
on a royalty-free basis to Use it, modify it, and even share commercial versions
of it. Use restrictions are included to prevent misuse of the Model.

This License Agreement governs the Use of the Model and Modifications of the
Model. Even though downstream derivative versions of the model could be released
under different licensing terms, the latter will always have to include — at
minimum — the same use-based restrictions as the ones in the original license.

The development and use of artificial intelligence ("AI") does not come without
concerns. The world has witnessed how AI techniques may, in some instances,
become risky for the public in general. These risks come in many forms, from
racial discrimination to the misuse of sensitive information. ArcOffical
believes in the intersection between open and responsible AI development; thus,
this License aims to strike a balance between both in order to enable
responsible open-science in the field of AI.

This License governs the use of the Model (and its Derivatives) and is informed
by the model card associated with the Model.

NOW THEREFORE, You and Licensor agree as follows:


Section II: DEFINITIONS

1.1 "Complementary Material" means the accompanying source code and scripts used
to define, run, load, benchmark or evaluate the Model, and used to prepare data
for training or evaluation, if any. This includes any accompanying
documentation, tutorials, examples, etc., if any.

1.2 "Contribution" means any work of authorship, including the original version
of the Model and any Modifications or additions to that Model or Derivatives of
the Model thereof, that is intentionally submitted to Licensor for inclusion in
the Model by the copyright owner or by an individual or legal entity authorized
to submit on behalf of the copyright owner. For the purposes of this definition,
"submitted" means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems, and
issue tracking systems that are managed by, or on behalf of, the Licensor for
the purpose of discussing and improving the Model, but excluding communication
that is conspicuously marked or otherwise designated in writing by the copyright
owner as "Not a Contribution".

1.3 "Contributor" means Licensor and any individual or legal entity on behalf of
whom a Contribution has been received by Licensor and subsequently incorporated
within the Model.

1.4 "Data" means a collection of information and/or content extracted from the
dataset used with the Model, including to train, pretrain, or otherwise evaluate
the Model. The Data is not licensed under this License.

1.5 "Derivatives of the Model" means all modifications to the Model, works based
on the Model, or any other model which is created or initialized by transfer of
patterns of the weights, parameters, activations or output of the Model, to the
other model, in order to cause the other model to perform similarly to the
Model, including — but not limited to — distillation methods entailing the use
of intermediate data representations or methods based on the generation of
synthetic data by the Model for training the other model.

1.6 "Distribution" means any transmission, reproduction, publication or other
sharing of the Model or Derivatives of the Model to a third party, including
providing the Model as a hosted or cloud service made available by electronic or
other remote means — e.g., API-based or web-access.

1.7 "Harm" includes but is not limited to physical, mental, psychological,
financial and reputational damage, pain, or loss.

1.8 "License" means the terms and conditions for use, reproduction, and
Distribution as defined in this document.

1.9 "Licensor" means ArcOffical, the rights owner granting the terms and
conditions of this License Agreement.

1.10 "Model" means the PiCo-1B machine-learning based assemblies (including
checkpoints), consisting of learnt weights, parameters (including optimizer
states), corresponding to the model architecture as embodied in the
Complementary Material, that have been trained or tuned, in whole or in part on
the Data, using the Complementary Material.

1.11 "Output" means the results of operating a Model as embodied in
informational content resulting therefrom.

1.12 "You" (or "Your") means an individual or legal entity exercising
permissions granted by this License and/or making use of the Model for whichever
purpose and in any field of use, including commercial usage of the Model in an
end-use application.


Section III: GRANT OF RIGHTS

3.1 Grant of License. Subject to Your compliance with all terms and conditions
of this License, Licensor hereby grants You a worldwide, royalty-free,
non-exclusive, perpetual (for the duration of the applicable copyright) license
to:

(a) Use, reproduce, distribute, and publicly perform the Model;

(b) Create, use, reproduce, distribute, and publicly perform Derivatives of the
Model;

(c) Sublicense the Model and Derivatives of the Model to third parties, provided
that any such sublicense includes all terms and conditions of this License and
the same use-based restrictions;

(d) Use the Model and Derivatives of the Model for commercial purposes,
including but not limited to:
   - Offering the Model as a hosted or API service;
   - Integrating the Model into commercial products or services;
   - Selling or licensing Derivatives of the Model.

3.2 Reservation of Rights. All rights not expressly granted to You under this
License are reserved by Licensor. Nothing in this License constitutes a transfer
of ownership of the Model or any intellectual property rights therein.


Section IV: USE-BASED RESTRICTIONS

You may not Use, reproduce, distribute, or create Derivatives of the Model for
any purpose that:

4.1 Violates Law or Human Rights.
   - Violates any applicable national or international law, regulation, or
     treaty;
   - Violates internationally recognized human rights, including but not limited
     to the Universal Declaration of Human Rights.

4.2 Generates or Promotes Harmful Content.
   - Generate, promote, or facilitate the generation of content that is
     defamatory, libelous, obscene, pornographic, or otherwise objectionable;
   - Generate, promote, or facilitate the generation of content that incites,
     promotes, or glorifies violence, terrorism, or criminal activities;
   - Generate child sexual abuse material (CSAM) or content that sexualizes
     minors;
   - Generate content that promotes suicide, self-harm, or eating disorders;
   - Generate content that promotes illegal drugs, gambling addiction, or other
     addictive or harmful behaviors.

4.3 Discriminates or Harms.
   - Generate, promote, or facilitate the generation of content that
     discriminates against, harasses, or disparages individuals or groups on the
     basis of race, color, religion, gender, gender identity, sexual
     orientation, national origin, age, disability, or any other protected
     characteristic;
   - Generate content that promotes hate speech or incites hatred against any
     individual or group.

4.4 Violates Privacy or Enables Surveillance.
   - Generate deepfakes, impersonations, or other synthetic media without the
     explicit informed consent of the individuals depicted;
   - Identify, track, or surveil individuals without their explicit informed
     consent, including but not limited to facial recognition, biometric
     identification, or location tracking;
   - Generate content for the purpose of identity theft, fraud, or deception;
   - Generate content for the purpose of spreading disinformation,
     misinformation, or propaganda.

4.5 Provides Professional Advice.
   - Provide or replace professional medical diagnosis, treatment, or advice;
   - Provide or replace professional legal advice;
   - Provide or replace professional financial, investment, or tax advice.

4.6 Automates Harmful Decision-Making.
   - Develop automated decision-making systems that have a significant impact on
     individuals' legal status, employment, housing, credit, education, or other
     major life opportunities, without meaningful human oversight and the
     ability for individuals to appeal automated decisions;
   - Develop systems for use in law enforcement, criminal justice, or national
     security contexts without appropriate safeguards and oversight.

4.7 Evades or Circumvents Restrictions.
   - Evade, circumvent, or attempt to evade or circumvent any of the use-based
     restrictions set forth in this Section IV, whether through the creation of
     Derivatives, the use of Output, or any other means.


Section V: YOUR OBLIGATIONS

5.1 Retention of License and Notices.
   - You must retain, in all copies of the Model and Derivatives of the Model,
     this License Agreement in its entirety, including all copyright and other
     proprietary notices.
   - You must include a copy of this License Agreement with any Distribution of
     the Model or Derivatives of the Model.

5.2 Application of Use-Based Restrictions to Derivatives.
   - Any Derivatives of the Model that You create, distribute, or sublicense
     must be subject to — at a minimum — the same use-based restrictions as set
     forth in Section IV of this License.
   - You may add additional restrictions to Your Derivatives, provided that such
     additional restrictions do not diminish, remove, or conflict with the
     use-based restrictions in Section IV.

5.3 Attribution.
   - Any public use, publication, or distribution of Output generated by the
     Model or Derivatives of the Model must include clear attribution to
     "PiCo-1B by ArcOffical".
   - Such attribution must state that the Output is AI-generated and may contain
     errors or inaccuracies.
   - You may not use the name "ArcOffical", "PiCo", or "PiCo-1B" to endorse or
     promote any product, service, or derivative work without prior written
     permission from Licensor.

5.4 Model Card and Documentation.
   - If You Distribute the Model or Derivatives of the Model, You are strongly
     encouraged to provide or maintain a model card or similar documentation
     that describes the capabilities, limitations, and appropriate use cases of
     Your Model or Derivatives.

5.5 Reporting Violations.
   - If You become aware of any Use of the Model or Derivatives of the Model
     that violates this License, You should promptly notify Licensor at
     [INSERT CONTACT EMAIL].


Section VI: INTELLECTUAL PROPERTY

6.1 Ownership. Licensor retains all right, title, and interest in and to the
Model and any intellectual property rights therein. Contributors retain all
right, title, and interest in and to their Contributions.

6.2 Trademark. This License does not grant You any rights to use the trademarks,
service marks, or logos of Licensor or any Contributor, except as required for
reasonable and customary use in describing the origin of the Model and
reproducing the content of the copyright notice.


Section VII: DISCLAIMER OF WARRANTY

THE MODEL AND COMPLEMENTARY MATERIAL ARE PROVIDED "AS IS", WITHOUT WARRANTY OF
ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NONINFRINGEMENT. LICENSOR
AND CONTRIBUTORS DO NOT WARRANT THAT THE MODEL WILL MEET YOUR REQUIREMENTS OR
THAT THE OPERATION OF THE MODEL WILL BE UNINTERRUPTED OR ERROR-FREE.


Section VIII: LIMITATION OF LIABILITY

IN NO EVENT SHALL LICENSOR OR CONTRIBUTORS BE LIABLE FOR ANY CLAIM, DAMAGES, OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT, OR OTHERWISE, ARISING
FROM, OUT OF, OR IN CONNECTION WITH THE MODEL, COMPLEMENTARY MATERIAL, OR THE
USE OR OTHER DEALINGS IN THE MODEL.


Section IX: TERMINATION

9.1 Automatic Termination. This License and the rights granted hereunder will
terminate automatically upon any breach by You of the terms of this License.

9.2 Survival. Sections I (Preamble), II (Definitions), VI (Intellectual
Property), VII (Disclaimer of Warranty), VIII (Limitation of Liability), IX
(Termination), and X (General Provisions) shall survive any termination of this
License.

9.3 Termination of Derivative Licenses. If You terminate this License, any
sublicenses granted by You to third parties prior to termination shall survive
termination, provided that such third parties remain in full compliance with all
terms of this License.


Section X: GENERAL PROVISIONS

10.1 Entire Agreement. This License constitutes the entire agreement between You
and Licensor regarding the subject matter hereof and supersedes all prior or
contemporaneous communications, whether written or oral.

10.2 Severability. If any provision of this License is held to be invalid,
illegal, or unenforceable, the remaining provisions shall remain in full force
and effect, and the invalid provision shall be reformed to the minimum extent
necessary to make it valid and enforceable.

10.3 No Waiver. The failure of Licensor to enforce any provision of this License
shall not constitute a waiver of such provision or of the right to enforce such
provision.

10.4 Governing Law. This License shall be governed by and construed in
accordance with the laws of [INSERT JURISDICTION], without regard to its
conflict of laws principles.

10.5 Dispute Resolution. Any dispute arising out of or relating to this License
shall be resolved through [INSERT DISPUTE RESOLUTION MECHANISM, e.g., binding
arbitration in accordance with the rules of the ICC / exclusive jurisdiction of
the courts of JURISDICTION].


Section XI: CONTACT INFORMATION

For inquiries regarding this License, please contact:

ArcOffical
[yuetwuism6home@gmail.com]
[https://huggingface.co/ArcOffical/PiCo-1B/tree/main]