Summary
Cashmere Privacy extends the bridge infrastructure with zero-knowledge proofs and policy tooling so organisations can settle stablecoin flows without exposing counterparties, amounts, or routing metadata.Status: Research and prototyping. Targeting public testnet in 2026.
Design Objectives
Confidential Settlement
Hide key transaction details on-chain while maintaining verifiable correctness.
Omnichain Coverage
Deliver the same privacy guarantees across all Cashmere-supported networks.
Compliance Optionality
Provide selective disclosure and audit trails for regulated participants.
CCTP / USDT0 Compatibility
Integrate natively with issuer messaging standards for zero-slippage mobility.
Technical Approach
1
Proof Construction
Users generate zk proofs attesting to valid balances and transfer intent without revealing sensitive data.
2
Source Validation
Proofs are verified prior to burning assets on the origin chain, ensuring compliance with Cashmere policies.
3
Private Minting
Destination mints occur without exposing origin addresses or amounts. Optional audit hooks capture encrypted metadata.
Privacy Modes
- Standard – hides amount and recipient while retaining origin metadata for operational purposes.
- Advanced – shields origin, amount, and recipient; intended for treasury or enterprise flows.
- Compliance – allows designated auditors to decrypt transaction metadata via selective disclosure.
Roadmap Highlights
Phase 1
Cryptographic design, threat modelling, and issuer alignment (current).
Phase 2
Closed testnet with limited privacy features and compliance APIs.
Phase 3
Mainnet deployment with full privacy/compliance tooling.
Phase 4
Ongoing enhancements, partner integrations, and open-source release cadence.
Integration Guidance
- Privacy flows reuse the Gas API for fee/signature generation.
- Builders can choose between public and private transfer flows within the same contract suite.
- Selective disclosure keys and audit workflows will be exposed via enterprise APIs.