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

# Privacy.cash

Privacy.cash provides ZK-proof privacy pool infrastructure on Solana, enabling protocols to offer cryptographically unlinkable deposits and withdrawals. The protocol uses commitment-based deposits where ownership is provably hidden, allowing downstream applications to build privacy-preserving financial products.

## Timeline
- **2026-03-03** — Integrated by [[cloak]] for privacy DCA infrastructure, providing the ZK-proof layer for unlinkable session wallet architecture

## Relationship to KB
- [[cloak]] — first known integration for privacy DCA
- Provides infrastructure relevant to [[futarchy-based fundraising creates regulatory separation]] through privacy-preserving capital flows
- ZK-proof privacy pools address surveillance concerns from Arkham Intelligence and Nansen tracking