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Terms of Service

Last Updated: January 21, 2026

Introduction​

Welcome to the OpenTDF Documentation website (https://docs.opentdf.io, the "Site"). These Terms of Service ("Terms") govern your access to and use of this documentation site.

OpenTDF is an open-source project sponsored by Virtru Corporation. By accessing or using this Site, you agree to be bound by these Terms.

Note: These Terms apply to this documentation website only. For terms governing OpenTDF software, platforms, or services, please refer to the respective license agreements and terms associated with those products.

About OpenTDF Documentation​

This Site provides documentation, tutorials, guides, and reference materials for the OpenTDF open-source project. The documentation is provided free of charge to help users understand and implement OpenTDF technologies.

Acceptable Use​

You May:​

  • Access and read the documentation for personal or commercial purposes
  • Use the information to implement OpenTDF in your projects
  • Share links to specific documentation pages
  • Print or download documentation for offline reference
  • Provide feedback or contribute improvements via GitHub

You May Not:​

  • Use the Site for any unlawful purpose or in violation of these Terms
  • Attempt to gain unauthorized access to the Site or related systems
  • Interfere with or disrupt the Site's operation or infrastructure
  • Use automated tools to excessively scrape or download content (reasonable use for personal backups is acceptable)
  • Reproduce, modify, or create derivative works of the Site itself (distinct from implementing OpenTDF based on the documentation)
  • Remove or obscure copyright, trademark, or other proprietary notices
  • Transmit malicious code, viruses, or harmful materials
  • Impersonate others or misrepresent your affiliation with any person or entity

Intellectual Property​

Documentation Content​

The documentation content on this Site is licensed under open-source licenses as specified in the OpenTDF project repositories. Unless otherwise noted, documentation is generally available under permissive open-source licenses.

For specific licensing information, see:

OpenTDF Trademarks​

"OpenTDF" and related logos are trademarks of the OpenTDF project. Use of these trademarks must comply with applicable trademark usage guidelines.

Virtru Trademarks​

"Virtru" and related logos are trademarks of Virtru Corporation. Unauthorized use of Virtru trademarks is prohibited.

Third-Party Content​

The Site may contain links to third-party websites, resources, or documentation. We are not responsible for the content, accuracy, or availability of third-party resources.

Disclaimer of Warranties​

THE SITE AND ALL DOCUMENTATION ARE PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED.

We make no warranties or representations about:

  • The accuracy, completeness, or currentness of the documentation
  • The Site's availability, reliability, or functionality
  • The fitness of any information for a particular purpose
  • The absence of errors, bugs, or interruptions

You use the information and guidance in this documentation at your own risk.

Limitation of Liability​

TO THE MAXIMUM EXTENT PERMITTED BY LAW, OPENTDF, VIRTRU CORPORATION, AND THEIR AFFILIATES, OFFICERS, EMPLOYEES, AND CONTRIBUTORS SHALL NOT BE LIABLE FOR:

  • Any indirect, incidental, special, consequential, or punitive damages
  • Loss of profits, data, use, or goodwill
  • Service interruptions or data loss
  • Damages arising from your use of or inability to use the Site
  • Any errors or omissions in the documentation

This limitation applies even if we have been advised of the possibility of such damages.

For jurisdictions that do not allow the exclusion of certain warranties or limitation of liability, our liability is limited to the maximum extent permitted by law.

OpenTDF Software and Services​

Software License​

The OpenTDF software and code are subject to their own open-source licenses as specified in each repository. Common licenses include Apache 2.0, MIT, and BSD licenses. Please review the LICENSE file in each repository for specific terms.

Virtru Services​

If you use Virtru's commercial services (separate from this documentation site), those services are governed by Virtru's Terms of Service.

Privacy​

Your use of this Site is also governed by our Privacy Policy and Cookie Policy. Please review these policies to understand how we collect and use information.

User Contributions and Feedback​

GitHub Contributions​

Contributions to OpenTDF documentation via GitHub are welcomed and governed by:

  • The project's Contribution Guidelines
  • The Developer Certificate of Origin (DCO)
  • The applicable open-source license

By contributing, you agree that your contributions may be used, modified, and distributed under the project's license.

Feedback​

If you provide feedback, suggestions, or ideas about the documentation or OpenTDF project, you grant us a non-exclusive, worldwide, perpetual, irrevocable license to use, modify, and incorporate such feedback without compensation or attribution.

This Site contains links to:

  • GitHub repositories
  • Sponsor websites (e.g., Virtru)
  • Tutorial resources
  • Third-party tools and services

We are not responsible for the content, availability, or practices of external websites. Your use of external sites is at your own risk and subject to their respective terms and policies.

Modifications to Terms​

We reserve the right to modify these Terms at any time. Changes will be effective when posted, with the "Last Updated" date revised accordingly.

For material changes, we will provide notice through:

  • A prominent announcement on the Site
  • Updates to the "Last Updated" date

Your continued use of the Site after changes constitutes acceptance of the modified Terms.

Modifications to the Site​

We reserve the right to:

  • Modify, suspend, or discontinue the Site or any part of it
  • Update, revise, or remove documentation content
  • Change the Site's structure, design, or functionality

We will make reasonable efforts to minimize disruption but are not liable for any changes or interruptions.

Governing Law and Jurisdiction​

These Terms are governed by the laws of the State of Delaware, United States, without regard to conflict of law principles.

Any disputes arising from these Terms or your use of the Site shall be resolved exclusively in the state or federal courts located in Delaware.

Severability​

If any provision of these Terms is found to be invalid or unenforceable, the remaining provisions will remain in full force and effect.

Entire Agreement​

These Terms, together with our Privacy Policy and Cookie Policy, constitute the entire agreement between you and us regarding your use of this Site.

No Waiver​

Our failure to enforce any provision of these Terms does not constitute a waiver of that provision or our right to enforce it in the future.

Contact Information​

For questions about these Terms:

Summary​

Access: Free for personal and commercial use

Usage: Read, implement, and share - but respect intellectual property

Contributions: Welcome via GitHub under project licenses

Warranties: None - documentation provided "as is"

Liability: Limited to maximum extent permitted by law

Governing Law: Delaware, United States

Contact: privacy@virtru.com for questions

Thank you for using OpenTDF documentation. We appreciate your compliance with these Terms and your contributions to the open-source community.