Send value on Robinhood Chain
without leaving a trail.
Cloak is a non-custodial privacy pool for ETH, USDG and tokenized stocks. Deposit into a fixed-size pool, prove ownership later with a zero-knowledge proof, and withdraw to any fresh address.
- Non-custodial smart contracts
- Groth16 zkSNARK proofs
- Proofs generated in your browser
Crypto assets
Native ETH and the USDG stablecoin, each in several fixed denominations.
Tokenized stocks
Robinhood Stock Tokens are on-chain representations of real equities issued by Robinhood on its own chain. Several unofficial look-alikes exist — always check that the contract address matches the one shown here before you approve anything.
How Cloak works
The same battle-tested design as classic zk mixers, rebuilt for Robinhood Chain assets.
- 01
Deposit & receive a note
Pick an asset and a fixed denomination. Your browser generates a random secret and sends only its hash (the commitment) on-chain with the funds.
- 02
Wait
Your deposit is indistinguishable from every other deposit of the same size. The longer you wait and the more deposits join, the stronger your privacy.
- 03
Prove, don't reveal
Paste the note on any device. A Groth16 zkSNARK proves you own one of the deposits — without saying which one. The proof is built entirely in your browser.
- 04
Withdraw anywhere
Send the full amount to a fresh address. The contract verifies the proof, checks the nullifier hasn't been used, and pays out. No relayer or account required.
Recent activity
Live from Robinhood ChainYour keys, your note, your privacy.
Cloak never sees your funds or your note. Contracts are immutable and permissionless; the interface is just a convenient way to talk to them.