Privacy Policy — ChainIndex.one

Last Updated: 17.11.2025

ChainIndex.one (“we”, “us”, “our”) is committed to protecting your privacy.

This Privacy Policy explains how we handle data when you use our website and services, including:

• ico.chainindex.one

• box.chainindex.one

• All tools operating on X1 EcoChain

By using the Platform, you agree to the practices described in this Policy.

1. Important Summary

ChainIndex.one:

• Does not require registration

• Does not collect personal data like name, email, address

• Does not store private keys or wallet information

• Does not track user identity

• Uses your wallet address only for blockchain operations

We follow the principle of data minimization (GDPR Art. 5).

2. Data We Do NOT Collect

ChainIndex.one does not collect, store, or process:

• Personal identification data

• Email or phone number

• Passport or KYC documents

• Location data

• Payment information

• Private keys or seed phrases

We operate entirely without user accounts or centralized identity.

3. Data We Collect Automatically

For platform functionality and security, we may collect limited technical information:

3.1 Wallet Address

Your public wallet address is used for blockchain interactions, such as:

• Creating tokens

• Sending or receiving certificates

• Verifying ownership

• Executing smart contract transactions

This address is never linked to your identity by us.

3.2 Technical & Usage Data

We may process:

• Browser type and version

• Device information

• IP address (anonymized or hashed)

• Interaction logs (e.g., pages accessed, errors)

This data is used for:

• Platform optimization

• Fraud prevention

• Security monitoring

3.3 Uploaded Files (box.chainindex.one)

When you upload a file to create a blockchain certificate:

• The file is processed temporarily

• The certificate or hash is stored on the blockchain

• The original file is not stored permanently unless you choose to save it

You maintain full ownership of your files.

4. Cookies and Tracking Technologies

ChainIndex.one may use minimal cookies for:

• Basic website functionality

• Security and session integrity

• Language settings

We do not use:

• Advertising cookies

• User profiling

• Behavioral tracking

Any analytics used are privacy-preserving (e.g., server-side logs or GDPR-compliant tools).

5. How We Use Data

We use collected data only for:

• Operating and improving the Platform

• Executing smart contract interactions

• Security and fraud prevention

• Providing customer support (if you contact us directly)

We never sell or share user data with advertisers, brokers, or third parties for marketing.

6. Blockchain Transparency Notice

Blockchain transactions are:

• Public

• Permanent

• Immutable

Wallet addresses and certificate hashes recorded on the X1 EcoChain are publicly visible to anyone interacting with the blockchain.

We do not control or modify blockchain data.

7. Legal Basis (GDPR Compliance)

We process data under GDPR using the following bases:

• Art. 6(1)(b) — Performance of a contract (operating the platform)

• Art. 6(1)(f) — Legitimate interests (security, functionality)

• Art. 6(1)(a) — Consent (cookies, if used)

We practice strict data minimization.

8. Data Storage and Retention

We store only minimal data, and only as long as necessary for:

• Platform operation

• Security and fraud detection

• Legal compliance

Uploaded files are not permanently stored unless the user places them into the certificate system voluntarily.

9. Data Security

We implement technical and organizational safeguards, including:

• SSL/TLS encryption

• Secure smart contracts

• Firewall and server protection

• Limited internal access

• No storage of sensitive personal information

However, blockchain transactions remain inherently public.

10. Third-Party Services

We may connect to:

• Wallet providers (MetaMask, WalletConnect, etc.)

• Blockchain explorers

• CDN or hosting services

These third parties have their own privacy policies, and we are not responsible for their practices.

11. Children’s Privacy

The Platform is not intended for individuals under 18.

We do not knowingly collect personal data from minors.

12. Your Rights (GDPR)

Depending on your jurisdiction, you may have rights to:

• Access your data

• Request correction or deletion

• Object to processing

• Request data portability

• Withdraw consent (if applicable)

Since we do not store personal identity data, many of these rights may not apply or may be technically impossible due to blockchain immutability.

You may contact us for assistance.

13. International Data Transfers

If technical logs are processed outside the EU, we ensure compliance via:

• Standard Contractual Clauses (SCC)

• GDPR-aligned safeguards

We never transfer sensitive personal data.

14. Changes to This Privacy Policy

We may update this Policy at any time.

Continued use of the Platform means you accept the updated version.

15. Contact Us

If you have questions about this Privacy Policy, you may contact us at:

Email: mail@chainindex.one

Website: https://chainindex.one/