Effective Date: May 20, 2025

This Blockchain and Cryptocurrency Privacy Addendum supplements our main Privacy Policy, generated by Shopify, to address specific data practices related to our blockchain consulting, services, merchandise, and cryptocurrency payments at Block9 LLC. It provides additional details about how we collect, use, and share personal information in the context of blockchain technologies, including Bitcoin and Stacks, and clarifies the unique privacy considerations of decentralized systems. For general e-commerce data practices (e.g., Shopify checkout, payment processing), please refer to our main Privacy Policy at www.block9.app.

Information We Collect

In addition to the data outlined in our main Privacy Policy, we may collect the following personal information specific to our blockchain-related services and cryptocurrency payments:

Cryptocurrency Payment Data: When you pay for services or merchandise with cryptocurrency (e.g., Bitcoin, STX) via platforms like BOOM or BTCPay Server, we may collect wallet addresses, transaction IDs, or related payment details to process your order. This data is considered personal information under laws like the California Consumer Privacy Act (CCPA).

Service-Related Data: When you engage with our consulting or educational services, we may collect information such as your name, email, phone number, or service preferences (e.g., via Salesforce for CRM or Google Meet for virtual sessions) to schedule and deliver sessions.

Third-Party App Interactions: If you use third-party blockchain applications we recommend (e.g., Coinbase, Xverse, Leather, ALEX, as listed on our resources page at https://www.block9.app/pages/resources), you may provide personal information directly to those platforms (e.g., wallet addresses, account details). We may receive limited data (e.g., via referral links or Shopify analytics) when you access these apps through our Site or services.

How We Use Your Information

We use the personal information described above to:

Process cryptocurrency payments for services or merchandise, ensuring accurate order fulfillment.

Schedule and deliver consulting, educational, or service sessions, including virtual (e.g., via Google Meet) or onsite engagements (e.g., Block9 Orange Case).

Manage client relationships and communications through our CRM system (Salesforce).

Improve our services and Site functionality, including analyzing usage data via Shopify or third-party analytics (e.g., Google, Facebook).

Comply with legal obligations, such as responding to CCPA requests from California residents.

We do not use your information for financial advice or investment recommendations, as our offerings are for informational and educational purposes only.

How We Share Your Information

We may share your personal information with third parties in the following ways:

Payment Processors: For cryptocurrency payments, we share wallet addresses or transaction IDs with platforms like BOOM or BTCPay Server to process transactions. For fiat payments, we use Shopify, Stripe, Apple Pay, or PayPal, as outlined in our main Privacy Policy.

Service Providers: We share data with tools like Salesforce (CRM), Google (e.g., Meet, Drive, Gmail), and Printify (merchandise fulfillment) to deliver services, communicate, or ship orders. These providers are bound by their own privacy policies.

Advertising Platforms: Data may be shared with Facebook, Instagram, X, or Google for marketing purposes, such as targeted ads, via Shopify’s integrations. We do not control their data practices.

Third-Party Blockchain Applications: When you engage with recommended apps (e.g., Coinbase, Gamma.io, Ledger) via our Site or services, you share data directly with those platforms. We may receive limited analytics (e.g., referral data) but do not control their data handling.

Affiliate Partners: For affiliate products (e.g., Amazon, SoloSatoshi LLC, Ryder, Bitcoin Trading Cards), your data is shared with their platforms during checkout, governed by their privacy policies.

Legal Compliance: We may disclose data to comply with legal obligations, such as responding to CCPA or other regulatory requests.

Public Blockchain Data

Many of our recommended applications (e.g., Xverse, Leather, ALEX, StackingDAO) interact with decentralized blockchains like Bitcoin and Stacks. Transactions on these blockchains, including wallet addresses and amounts, are recorded on public, immutable ledgers and are not private. Once data is submitted to a blockchain (e.g., via a cryptocurrency payment or app interaction), neither Block9 nor the app provider can control, modify, or delete it. You are responsible for understanding this public nature before engaging with blockchain technologies. Block9 is not liable for any privacy concerns arising from public blockchain data.

Your Privacy Rights (Including CCPA)

If you are a California resident, the CCPA grants you specific rights regarding your personal information, including:

Right to Know: Request details about the categories of personal information we collect, use, share, or sell (if applicable).

Right to Delete: Request deletion of your personal information, subject to exceptions (e.g., blockchain data cannot be deleted due to immutability).

Right to Opt-Out: Opt out of any sale of your personal information (note: Block9 does not currently sell personal information, but third-party platforms like Shopify or Google may share data for advertising).

Right to Non-Discrimination: We will not discriminate against you for exercising these rights.

To exercise your CCPA rights, contact us at support@block9.app or write to PO Box 202, Barnhart, MO 63012. We will respond within 45 days, as required by law, and may verify your identity to process requests. For non-California residents, we extend similar rights where feasible, subject to applicable laws.

Notice at Collection: We collect personal information (e.g., names, emails, payment details, wallet addresses) for the purposes outlined above. We do not sell personal information, but data may be shared with third parties as described. Blockchain data (e.g., transaction IDs) is public and not subject to deletion.

Data Security

We use reasonable measures to protect your personal information, such as secure payment processing through Shopify, BOOM, or BTCPay Server. However, blockchain transactions are inherently public, and third-party platforms (e.g., Coinbase, Salesforce) have their own security practices. We are not responsible for their data breaches or the security of public blockchain data. You should follow best practices, such as securing your wallet private keys, to protect your information.

Third-Party Privacy Policies

Our recommended blockchain applications (e.g., as listed on https://www.block9.app/pages/resources) and other third-party services (e.g., Shopify, Salesforce, Printify, Google, Facebook) operate under their own privacy policies. We encourage you to review these policies before engaging with them, as Block9 does not control their data practices or security measures.

Changes to This Addendum

We may update this addendum periodically to reflect changes in our practices or legal requirements. The revised version will be posted at www.block9.app with an updated effective date. Your continued use of our Site, services, or merchandise after such changes constitutes acceptance of the updated addendum.

Contact Us

For questions about this addendum, our main Privacy Policy, or your privacy rights, please contact:

• Email: support@block9.app
• Mailing Address: PO Box 202, Barnhart, MO 63012
• Website: www.block9.app
  
  Thank you for trusting Block9 LLC with your blockchain journey!