privum
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Private money.
Every chain.

Swap, bridge, stake and send from a shared private pool on Ethereum, Arbitrum and Robinhood Chain, and pay for AI without it being tied to you. Proofs are made in your browser. Nobody sees who did what.

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Coming soon on Ethereum Arbitrum Robinhood Chain
The swap card: 1.5 ETH for 4,009.71 USDC on Arbitrum
Same payment

Two very different receipts.

On a public chain every payment is a record anyone can read, forever. Through Privum the chain sees that something moved, and nothing about who or how much.

Transaction0x7c1e…4a9f
From
0x8f3a…c21d youa relayer
To
0x11b2…9e0f your landlordthe pool
Amount
2,400 USDC
Your balance
18,930 USDC
Your history
214 payments since 2021
Anyone can read this.Nothing here points to you.

Swap into dollars or staked ETH, or straight out to another chain

  • ETH
  • wstETH
  • USDC
  • USDT
  • BTC
  • SOL
  • ZEC
  • and 100+ more
Deposit

Join the crowd.

Your deposit becomes one note among thousands. Money moves in batches of fixed sizes with everyone else's, so amounts and timing don't point back to you.

0notes in the pool
  • 0.01
  • 0.1
  • 1
  • 10 ETH
One is yours. Nobody can say which.
  • Batch bridgingAny amount crosses as pieces of standard sizes, settled with everyone else's.
  • Crowd sizeSee how many notes you blend in with before you leave.
  • No new seed phraseSign once with your wallet and your private account comes from it.
Swap

Trade without a trail.

Swap ETH for dollars or staked ETH inside the pool, where the output lands back as a note only you can spend. Or swap straight out to ZEC, paid to your shielded Zcash address.

  • Dollars, staked ETH or ZECUniswap for USDC and wstETH, MAYAChain for ZEC.
  • Stake privatelywstETH notes earn Lido's staking yield, for a flat 0.05%.
  • 0.50% down to 0.20%The swap rate drops as the swap gets bigger. On Ethereum, swaps skip the public mempool.
Your note1.5 ETH
Swapper takes the fee Uniswap v3 best tier, live quoteMAYAChain swaps it to ZEC
Your noteYour shielded address4,009.71 USDC3.00 ZEC

No address in between.Paid to a shielded Zcash address.

Apps

Use apps without your address.

Every app gets its own private account from your phrase, paid for by the pool. What's left comes back as a note.

Private AI · zkAPI

Pay for any model.

Credit as a private note, and a short-lived key that never says who paid.

sk-or-v1…7f3a
IMD

Hire an agent swarm.

Sourced reports, oracle answers and launches, paid from a private account.

0.5 IMD a job
Any app

An account per app.

An ordinary address for anything that wants a wallet, tied to nothing of yours.

0x7c3e…0e12
Open Apps
In and out

Money in. Money out.

Get paid by anyone, withdraw to anywhere, and hear about it before you link yourself.

  1. A friendpays 0x04ab…6202
  2. An exchangepays 0x91fe…0c3d
  3. A clientpays 0x5d07…a1e8
Your notes1.55 ETHNobody can see them
  1. 0x3f1a…9b20a fresh address
  2. vitalik.ethlooked up privately
  3. bc1q…7d2kas BTC, on Bitcoin
  • One address to shareEvery payer gets a fresh one-time address only you can find.
  • Any address outA fresh one, or a name.eth looked up through the relayer.
  • Any chain outPaid out in BTC, SOL, ZEC and 100+ more.BTCSOLZECUSDTUSDC+100
  • It tells you firstBefore a withdrawal that would link you to your deposit.
Under the hood

Nobody sees who did what.

Your request is encrypted in your browser and passed through a relay to a relayer, which sends the transaction. Each side holds half of the story.

  1. YouYour device makes the proof and seals the request.
  2. RelayPasses it on. It can't open it.
  3. RelayerOpens it and sends it. It never learns your IP.
  4. ChainSees the relayer, not you.
3chains at launch
100+assets out
0owner keys
1tab to run a relayer

Run a relayer. Earn 60% of every swap fee you relay, on the spot, from a browser tab or one command.

Run one →
Analytics

Everything public that should be.

Pool size, volume, fees and operators, live. Nothing on it can be traced to a person.

See the numbers →
Open

No owner keys. No upgrades.

Nobody can pause the pool, change its rules or take what's in it. The contracts and the client are open source.

How it works →
Reports

Show what's yours, and only that.

Download your history for taxes or an exchange. Every line can be checked against the chain without your keys, and it shows nothing about anyone else.

Your wallet →
Kohaku

In your wallet, next to Railgun.

Privum ships as a plugin for Kohaku, the Ethereum Foundation's privacy kit for wallets: shield, send and withdraw from any wallet that loads it.

For wallets →

Private by default.

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