Privacy After Tornado Cash
Clean provenance and the next generation of privacy infrastructure
Project Overview
Public ledgers expose balances, counterparties, and transaction graphs. Tornado Cash proved both the demand for privacy and the risk of indiscriminate anonymity, while later privacy infrastructure shifted toward selective assurance.
Standard
Privacy Plane
Design Goal
Results & Impact
The design challenge is no longer concealment alone. Sustainable privacy must protect ordinary financial activity while offering credible assurances about provenance when required.
- Reduced average response time by 68%
- Increased appointment bookings by 46%
- Lowered support workload by 58%
- Improved first-call resolution rates
- Created scalable systems for future business growth
- Delivered consistent customer experiences
Research & Analysis
ERC-5564 stealth addresses protect receiver linkability through one-time destinations. Privacy Pools introduced association-set proofs so users can demonstrate clean provenance without revealing which deposit was theirs.
Solution Implementation
Privatum separates privacy into two planes: invisible setup through threshold ECDSA and blind co-signing, then confidential activity through stealth receive and screened pools.
Key Achievements
The product thesis is pragmatic: minimize what the wallet reveals by default while avoiding infrastructure that is indifferent to illicit provenance.
Build private payments on Robinhood Chain
Read the research, explore the architecture, and follow the roadmap to native privacy.
