1. WHAT WE STORE:
• Cryptographic SHA-256 hashes of identifiers registered for suppression or active monitoring.
• Blockchain invoice IDs, crypto addresses, and transaction hashes for on-chain settlement proof.
• Hashed authentication passphrases for vault holders.

2. WHAT WE NEVER STORE:
• Plaintext search queries.
• IP access logs tied to user search targets.
• Legal names, credit cards, or physical billing coordinates.
• Tracking cookies or analytics trackers.

3. GDPR / CCPA OPT-OUT:
Subscribers can submit any identifier to our suppression engine at any time. This generates a permanent exclusion hash and purges all instances from monitored indexes immediately.