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Privacy Policy

Last Updated: December 10, 2025

Introduction

EightBlock (“we,” “our,” or “us”) is committed to protecting your privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you visit our platform, a decentralized blockchain education and publishing platform.

By using EightBlock, you agree to the collection and use of information in accordance with this policy. If you do not agree with our policies and practices, please do not use our platform.

Information We Collect

Wallet Information

When you connect your Cardano wallet to authenticate on our platform, we collect:

  • Your wallet address (public key)
  • Digital signatures for authentication purposes
  • Transaction data related to your interactions on the platform

We do NOT have access to your private keys, seed phrases, or the ability to execute transactions on your behalf. All wallet interactions are performed directly through your wallet application.

User-Generated Content

  • Articles and blog posts you create
  • Comments and interactions on articles
  • Profile information (username, bio, avatar)
  • Bookmarks and content preferences

Usage Data

We automatically collect certain information when you visit, use, or navigate the platform:

  • Log and usage data (IP address, browser type, device information)
  • Article views and engagement metrics
  • Search queries and content interactions
  • Performance data and error logs

How We Use Your Information

We use the collected information for the following purposes:

  • Authentication: Verify your identity through wallet-based authentication
  • Content Delivery: Provide personalized content recommendations and bookmarks
  • Platform Operations: Maintain and improve platform functionality and performance
  • Analytics: Analyze usage patterns to enhance user experience
  • Security: Detect and prevent fraudulent activities and security threats
  • Communication: Send important updates about the platform (if subscribed to newsletter)

Data Storage and Security

We implement industry-standard security measures to protect your personal information:

  • Encrypted data transmission using HTTPS/TLS protocols
  • Secure database storage with access controls
  • Regular security audits and vulnerability assessments
  • Redis caching with automatic expiration for temporary data
  • No storage of private keys or sensitive wallet credentials

However, no method of transmission over the Internet or electronic storage is 100% secure. While we strive to use commercially acceptable means to protect your information, we cannot guarantee its absolute security.

Data Sharing and Disclosure

We do not sell, trade, or rent your personal information to third parties. We may share your information in the following circumstances:

  • Public Content: Articles, comments, and profile information you choose to make public
  • Legal Compliance: When required by law or to protect our rights
  • Service Providers: With trusted third-party services that help us operate the platform (hosting, analytics, email services)
  • Business Transfers: In the event of a merger, acquisition, or asset sale

Blockchain Transparency

As a blockchain-based platform, please be aware that certain activities may be recorded on the Cardano blockchain and are publicly visible and immutable. This includes:

  • Wallet addresses associated with your account
  • On-chain transactions (if applicable to future features)
  • Timestamped content signatures (if implemented)

Your Privacy Rights

Depending on your location, you may have the following rights:

  • Access: Request a copy of your personal data
  • Correction: Update or correct inaccurate information
  • Deletion: Request deletion of your account and associated data
  • Portability: Receive your data in a structured, machine-readable format
  • Objection: Object to processing of your personal data
  • Withdrawal: Withdraw consent for data processing at any time

To exercise these rights, please contact us using the information provided at the end of this policy.

Cookies and Tracking

We use essential cookies and local storage to maintain your authentication session and preferences. These include:

  • Authentication tokens (stored in localStorage)
  • User preferences and settings
  • Session management

You can control cookies through your browser settings, but disabling them may affect platform functionality.

Third-Party Services

Our platform integrates with third-party services:

  • Cardano Wallets: For authentication (Nami, Eternl, Flint, etc.)
  • GitHub: For contributor information and repository links
  • Analytics Services: For platform usage analysis (if implemented)

These services have their own privacy policies. We encourage you to review them.

Children's Privacy

Our platform is not intended for individuals under the age of 13. We do not knowingly collect personal information from children. If you believe we have collected information from a child, please contact us immediately.

International Data Transfers

Your information may be transferred to and maintained on servers located outside of your country of residence. We ensure appropriate safeguards are in place to protect your information in accordance with this Privacy Policy.

Changes to This Privacy Policy

We may update this Privacy Policy from time to time. The updated version will be indicated by an updated “Last Updated” date. We encourage you to review this Privacy Policy periodically for any changes. Changes are effective when posted on this page.

Open Source Transparency

EightBlock is an open-source project. Our codebase is publicly available on GitHub, allowing you to verify our data handling practices. You can review our code, submit issues, or contribute to the project at our GitHub repository.

Contact Us

If you have questions or concerns about this Privacy Policy or our data practices, please contact us:

Acknowledgment

By using EightBlock, you acknowledge that you have read and understood this Privacy Policy and agree to its terms.