---
type: entity
entity_type: company
name: Privacy.cash
domain: internet-finance
status: active
platform: solana
tracked_by: rio
created: 2026-03-11
---

# Privacy.cash

Privacy.cash is a ZK-proof privacy pool protocol on Solana that enables cryptographic anonymity for on-chain transactions. The protocol allows users to deposit funds as cryptographic commitments where ownership is provably hidden, breaking the on-chain link between depositor wallets and subsequent transactions.

## Timeline
- **2026-03-03** — Integrated by [[cloak]] for private DCA infrastructure, demonstrating production use of ZK privacy pools on Solana

## Relationship to KB
- [[cloak]] — first known integration for private DCA
- Provides infrastructure for [[futarchy-governed-permissionless-launches-require-brand-separation-to-manage-reputational-liability-because-failed-projects-on-a-curated-platform-damage-the-platforms-credibility]] privacy use cases
- Solana implementation of ZK-proof privacy pools