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
Proof Construction
Users generate zk proofs attesting to valid balances and transfer intent without revealing sensitive data.
Source Validation
Proofs are verified prior to burning assets on the origin chain, ensuring compliance with Cashmere policies.
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.