Private blockspace

Private blockspace lets you post encrypted data to Celestia while proving it’s valid and available. You get confidentiality and verifiability, which is ideal for institutional applications that need both privacy and compliance.

How it works

A lightweight proxy sits between your app and Celestia:

1. Submit: The proxy encrypts your data, generates a zkVM proof, and posts to Celestia
2. Retrieve: The proxy fetches and decrypts blobs using your encryption key
3. Verify: Anyone can verify availability and correctness without seeing plaintext

Use cases

• Confidential exchanges: Private order books with provable solvency (Hibachi )
• Confidential payments: Encrypted transactions with regulatory compliance
• RWA tokenization: Private holder data with verifiable state
• Private backups: Encrypted recovery without exposing plaintext
• Cross-chain messaging: Verifiable encrypted data transport

Get started

• About private blockspace: Architecture and technical details
• Quickstart guide: Run on your own
• PDA proxy repo : Source code and examples