01/ 03Start with what’s yoursSame assets.
Same assets.
A new beginning.
Choose an asset and a fixed amount. Your deposit joins a pool of equal deposits, ready for its next chapter.
ETH · Stablecoins · Tokenized stocks Built on Robinhood Chain Your money.
Your money.
Your business.
A little less public. A lot more yours.
Give your assets a private next chapter.
Non-custodialZero-knowledge
A little space between you and the worldLeave the link.
Leave the link.
Keep the freedom.
Your next move doesn’t need your entire history.
Step insideYOUR ASSETS. YOUR PRIVACY.Scroll to step inside
Built for your everyday assets
Ethereum Stablecoins Tokenized stocks
One private next move. Privacy, in three movesNothing to overshare.
Nothing to overshare.
Everything to keep.
Familiar assets. A simpler way to move privately.
02/ 03The part only you keepA little secret.
A little secret.
A lot of control.
Save your private note. It’s the key to your funds — created in your browser, and yours to keep safe.
Save it before confirming your deposit03/ 03Choose where it goes nextA fresh address.
A fresh address.
A private next move.
Use your note to withdraw to a recipient address. A zero-knowledge proof verifies the deposit without revealing which one is yours.
Your proof. Your recipient. Your choice. The power of a shared poolA little harder
Explore the pools
A little harder
to single out.
Your deposit joins others of the same amount. When you withdraw, a proof confirms you belong to the pool without identifying your deposit.
01Different senders
02Equal-sized deposits
03A private proof
Privacy depends on pool activity, timing and how you use your wallets.
Same assets. New possibilities.A little privacy.
A little privacy.
Across your portfolio.
From your first ETH to your next investment.
Three tracks. One familiar experience.
The original
Ethereum
For your next on-chain move.Keep your next ETH transfer separate from your history.
The everyday
Stablecoins
Stable value. Personal space.Bring privacy to the assets you use every day.
The bigger picture
Tokenized stocks
Your portfolio. Your perspective.A private next chapter for your tokenized investments.
Explore available pools and deposit amounts in the app. View the protocol
EXCHANGE WITH HUSHERMore assets.
More assets.
One place to start.
Exchange into ETH on Robinhood before a deposit, or find your next asset after a withdrawal.
Exchange on Husher.
Privacy pools on Null Cash.
A DIFFERENT PERSPECTIVE ON PRIVACY
A little distance from the public eyeSome things
Some things
are just yours.
Your next move. Your own space.
A more private way to hold the same assets.
ETH · STABLECOINS · TOKENIZED STOCKSKeep exploring
Made for your next move
Follow your own path Privacy gets personal.
Your walletsA fresh address.
A fresh address.
A little separation.
Choose a recipient address for your withdrawal. Your proof keeps the specific deposit out of the withdrawal transaction.
Your noteSmall enough to save.
Small enough to save.
Important to keep.
Your private note unlocks your deposit. Save it before sending funds. Anyone with the note can withdraw; a lost note cannot be recovered.
Your arrivalLet the relayer
Let the relayer
pick up the gas.
An available relayer submits your withdrawal and pays network gas. Its fee is included in the protocol withdrawal fee.
A stake in something more privateGood for privacy.
Good for privacy.
Working for you.
Lock NULL. Receive veNULL weight. Share in protocol rewards — in the assets that move through it.
Explore staking Rewards vary with protocol activity and your lock. Under the surfaceBeautifully simple.
Beautifully simple.
Deliberately built.
Understand what protects your deposit, what you control, and where the protocol stands today.
View contracts & statsProve you belong.
A zero-knowledge proof verifies your right to withdraw. It binds the recipient and fee to your request, without revealing which pool deposit is yours.
Verified by the withdrawal contract
Keep the key.
The browser creates your private note. You choose where to store it and where to withdraw. The note is essential: save it before making your deposit.
Your note is the key to your funds
Know what’s live.
The current deployment uses test assets and a placeholder NULL token. An external audit and a production proof-setup ceremony are still outstanding.
Test configuration · Contracts unaudited
A little clarityGood questions.
Good questions.
Clear answers.
Privacy should feel simple.
Understanding it should, too.
How does Null Cash work?
Choose an asset and a fixed deposit amount. Save your private note, then use it to withdraw to a recipient address. A zero-knowledge proof verifies your deposit without revealing which deposit is yours.
Which assets can I use?
The protocol supports ETH, stablecoin and tokenized-stock pools. Only assets and amounts listed in the active pool registry are available. The current deployment uses test assets and a placeholder NULL token.
Why do I need to save a note?
Your private note is the key to your deposit. Keep it somewhere safe before confirming the transaction. Anyone with the note can withdraw the funds, and a lost note cannot be recovered.
What do I earn by staking NULL?
Locking NULL gives you veNULL weight. Eligible rewards are distributed proportionally to that weight in the relevant reward assets. Your weight decreases toward the unlock date; returns depend on protocol activity.
Is the protocol ready for real funds?
The current deployment is a test configuration. The contracts have not received an external audit, and the proof system still requires a production setup ceremony. Review the deployment and pool details before using the app.
Can I exchange assets before depositing or after withdrawing?
Yes. The Exchange screen guides you to Husher for the exchange, then back to your Null Cash deposit. After an ETH withdrawal, it checks the confirmed payout before continuing. Husher provides the rates, fees and order tracking on its own website. Exchange execution is separate from the privacy pool.
nullcashPrivacy looks good on you.