Oarkel.Public chain.Private balance.
Oarkel is a privacy protocol for Robinhood Chain. Shroud ETH or $OARKEL, keep a balance nobody else can read, and collect a share of the fees.
01 / How it works
Shroud, hold, spend: three moves to a private balance.
On Robinhood Chain, as on every public chain, anyone can paste your address into an explorer and read your balance and every payment you have made. Oarkel adds a second place to keep value, where the chain can check the math but cannot read the numbers.
Step 01: Shroud.
Deposit ETH or $OARKEL into the shared pool. What you get back is a note only your keys can open.
Step 02: Hold.
Shrouded $OARKEL owns a slice of the fee vault, and every fee raises its worth. Public wallets get none of it.
Step 03: Spend or unshroud.
Pay someone inside the pool, or withdraw to an address you pick. A zero-knowledge proof shows the funds are yours without naming the note.
What changes when you shroud
A public diary, then a sealed envelope.
The difference is not what you own but who can read it. Once one of your addresses is tied to your name, through an exchange withdrawal or one tagged payment, a public token tells the whole story. A shrouded balance does not.
An ordinary ERC-20. Every holding and every transfer sits in a permanent public row, and one tagged address is enough to unravel the rest.
Honest limit: entering and leaving the pool stay visible. What disappears is the path in between.
02 / Holder yield
Fees go to private holders. Public holders get nothing.
This is the part most privacy tools leave out: a reason to stay private. Every fee the protocol takes is designed to flow into one vault, and the vault belongs to shrouded $OARKEL. More activity means each private share is worth more. It is passive yield with no staking step and no claim button.
Public wallet
Balance visible to all
Shroud
ETH or $OARKEL goes in. Small fee.
Oarkel pool
Shared by everyone. Balances unreadable.
Unshroud
Leave to an address you choose. Flat fee.
Fresh address
Where the exit lands
Fee harvester
Collects each trade's creator fee; the larger part goes to holders
plannedTeam share
Fee vault
Every fee lands here as $OARKEL backing.
Shrouded $OARKEL
Each share is backed by more over time.
Public $OARKEL
Earns nothing.
- Creator fee on $OARKEL trades
- A cut of the launchpad creator fee on every buy and sell is harvested to buy back for the vault.
- Shroud fee
- A small fee taken when value enters the pool.
- Unshroud fee
- A flat fee per exit, so the fee says nothing about the note's size or age.
- Private transfer fee
- A small fee on payments made inside the pool.
Contract design. Default rates: 0.25% to shroud, 0.10% per private transfer, a flat 0.0005 ETH or 20 $OARKEL to unshroud, fixed at deploy. Yield can be zero: it is paid from real fees, never printed. Only shrouded $OARKEL earns; ETH fees are swept and swapped into it.
What shrouded $OARKEL is for
The pool comes first. These pieces are planned on top of it, in order. None of them is live yet.
Private settlement
Desks and treasuries settle with each other inside the pool on Robinhood Chain, then exit only what has to be shown.
Gasless exits
A relayer sends the shroud or unshroud for you and covers gas, taking its fee from the note. The receiving wallet never needs ETH.
Private swaps
Swap shrouded value for other Robinhood Chain assets with no visible link between what went in and what came out.
Launch privacy coins
New coins launch straight into the shared pool, so every launch grows the crowd that protects everyone already in it.
Who shrouds
- Traders
- Hold $OARKEL in a note instead of a watched wallet, so a position cannot be copied or front-run, and collect fee yield meanwhile.
- Privacy-minded holders
- Keep savings on-chain without publishing them. Paying a friend no longer hands them your net worth and history.
- Institutions
- Settle on Robinhood Chain without broadcasting treasury size, counterparties or timing, and leave the pool to a new address when needed.
- Communities
- Bring a privacy coin into the same pool instead of a new one. A bigger crowd makes each note harder to single out.
ERC-20 · Robinhood Chain
Get $OARKEL.
contract:published at launch
The token is how the protocol pays its private holders. The address is not published yet. When it is, it appears here, on the token page and on @oarkelxyz, and nowhere else.
01
Buy it like any token.
A plain ERC-20 on Robinhood Chain: the Pons bonding curve first, then a Uniswap v4 pool after it graduates, with routers on top.
02
Shroud what you bought.
A purchase lands publicly in your wallet. Shrouding it in the app turns it into a note that collects fee yield.
03
Buy straight into a note.later
Pay ETH inside the app and receive $OARKEL directly as a private note, never sitting in a public wallet.
Contract design
Built so that nobody, including us, can touch a note.
These are the rules the Oarkel contracts are written to. The contracts are written and tested but not deployed yet; each rule will be checkable on the explorer the day they are.
No key can freeze a note.
in the codeThe pool contract has no owner and no admin function. No one is able to lock a note, halt the pool or redirect a payment; shrouds, private payments and exits always work.
freeze(note): reverted, no admin role
No admin keysExits keep workingNo upgrade pathYour browser proves it.
in the codeYour browser builds the zero-knowledge proof in about four seconds. Your notes and keys never leave it; only the proof and nullifiers go on-chain.
building proof in this browser
- note key
- stays on device
- witness
- stays on device
- sent out
- proof + nullifier
A relayer can pay the gas.
in the codeA private payment or an unshroud can be sent by a relayer that covers gas and takes its fee from the note, so a fresh address never needs funding first. The fee is bound into the proof.
fresh address · 0 ETHrelayer pays the gasfee comes out of the noteOne signature, all keys.
in the codeNote keys are derived from a signature by your wallet. Sign again on any device and they come back: there is no seed file to back up.
wallet signature
0x8c41f0…a93e27d51b
derived, same on every device
viewing keyspending keynothing written down, nothing to lose
Immutable, by design.
in the codeNo proxy and no upgrade path; every parameter is fixed when the pool is deployed. A bug cannot be patched, so the code is open source and anyone can check the deployed bytecode against it.
pool.upgradeTo() → function not found what you can check instead 1. open source 2. verify-deployment 3. no admin function
Private holders get paid.
Shrouded $OARKEL collects a share of every protocol fee. The same tokens held in public collect nothing, and that gap is the reason to shroud.
+1,000 $OARKEL
Example only: 50,000 $OARKEL held, fees equal to 2% of the vault arrive. The shrouded part earns; the public part earns nothing.
03 / FAQ
Oarkel, in plain words.
What is Oarkel?
Oarkel is a privacy protocol built for Robinhood Chain. ETH or $OARKEL deposited into a shared pool becomes a note readable only with your keys, and holders of shrouded $OARKEL are designed to collect a cut of every fee the protocol earns.
How does Oarkel work?
Three moves. Shroud: deposit ETH or $OARKEL and get an encrypted note back. Hold: the note sits in the pool and, for $OARKEL, its share of the fee vault grows as fees arrive. Spend or unshroud: pass the value on privately, or exit to an address you choose, backed by a zero-knowledge proof revealing nothing about which note paid.
How do I buy $OARKEL?
$OARKEL is planned as a standard ERC-20 token for Robinhood Chain, listed through the Pons launchpad. Once the contract address is published on the token page, you purchase it from the Pons bonding curve with ETH, and after graduation in its Uniswap v4 pool. The address is not published yet, so there is nothing to buy today.
Which network is Oarkel on?
Robinhood Chain mainnet, chain id 4663. ETH pays for gas there. Any EVM wallet that can add a custom network works, and this site adds the network for you when you connect.
Do public holders earn anything?
No. Fees are designed to flow only to the vault behind shrouded $OARKEL. A wallet that simply holds $OARKEL in public gets no share of them. That gap is the reason to shroud.
Who controls the contracts?
Nobody. The pool contract has no owner, no admin function, no pause and no proxy, and every parameter is fixed in its constructor, so no team member can move, freeze or redirect a note. The contracts are written and tested but not deployed yet; their addresses will be published in the docs once they are live.
Does Oarkel make me anonymous?
It conceals your balance and your counterparties inside the pool. Entering and leaving the pool remain public transactions, and your IP address, plus anything you tell other services, is outside its reach. The protection scales with the crowd: the more notes in the pool, the harder any one of them is to single out.
Which fees does Oarkel charge?
A creator fee on $OARKEL trades, a 0.25% shroud fee, a 0.10% private transfer fee and a flat unshroud fee of 0.0005 ETH or 20 $OARKEL. Those are the values the pool will be deployed with, and they are fixed forever at deploy; the contract refuses any fee above 5%. A relayer that pays your gas sets its own fee on top. The practice app uses the same rates.
Do I need ETH to shroud or unshroud?
To shroud, yes: you send that transaction from your own wallet. To unshroud or pay privately, no. A relayer can submit the transaction and pay the gas, taking its fee out of the note itself, so the wallet that receives a withdrawal never has to be funded first.
What are the risks?
Contract risk first: an immutable contract cannot be patched if a bug is found, which is the price of having no admin. Then legal risk, since rules on privacy tools differ by country and can change. Then market risk: the price of $OARKEL can fall. Put in only money you are prepared to lose entirely.
Drop off the record.
Connect a wallet and walk the whole flow with practice balances. Every step is a free signature; nothing is sent on chain.