Privacy by default
Amounts, balances and the transaction graph are target-protected.
COMPANY · ABOUT OTTI
Building confidential payments and private positions for Robinhood Chain.
Otti is an experimental privacy layer for USDG and tokenized equities. The protocol combines a commitment pool, zero-knowledge state transitions, one-time stealth addresses and gasless claims.
OTTI · SHIPPING THE SPECIFICATION IN PUBLIC SINCE 2026
01 · Mission
Private finance, without the custody tradeoff.
Make private, selectively auditable on-chain finance the default — without sending users back to custodial infrastructure.
02 · The problem
Public settlement reveals more than intent.
Public settlement exposes treasury movements, payroll, positions and counterparties permanently. Otti is being specified around confidential state transitions that keep ownership and control with the user.
03 · Principles
Privacy with a clear trust boundary.
The design is guided by three constraints.
Auditable when required
Selective disclosure is the goal — not public surveillance.
On-chain, not custodial
User-owned keys, not a centralized exchange or hosted balance.
04 · Surfaces
One protocol, three ways to build.
The current work is split across protocol primitives, developer tooling and an experimental interface.
Core privacy layer
ShieldedPool, verifier, stealth registry and relayer architecture.
TypeScript integration
Deposit scaffolding exists; private proving remains gated.
Experimental interface
Available at # as an experiment, with no promise of real-funds readiness.
05 · Roadmap
From public specification to mainnet readiness.
Each phase closes a separate set of cryptographic, operational and integration risks.
Specification
- Poseidon commitments
- RFCs and interfaces
- Threat model
Testnet
- Circuit, nullifiers and relayer
- Setup and audit
- Integration harness
Mainnet readiness
- Verified deployments
- SDK integrations
- Permissionless relayers
- Recursive proofs research
06 · Contact
Work in public. Disclose in private.
Engineering and security: security@otti.xyz.
Announcements: follow Otti on X.
Private disclosure: use the security email above.