Questions, answered
Short answers for traders and creators. The full details, with every fee, are in the docs.
Basics
What is Hidden?
A launchpad for pump.fun coins with a private balance built in. Launch or buy a coin, then move it into your private balance so it stops showing under your wallet on trackers.
Are these real pump.fun coins?
Yes. Every coin is created on pump.fun, trades on the pump.fun bonding curve, shows on pump.fun and graduates to PumpSwap like any other coin.
Can I shield a coin that was not launched here?
Yes. Any pump.fun coin (and SOL) can go into your private balance. Paste the coin's mint address on the Private page.
Who runs the privacy part?
Helius Privacy Rings, a privacy layer on Solana. We build the transactions in your browser and use Helius to make the proofs. We do not hold your private balance.
Privacy
What exactly is hidden?
Which coins are in your private balance and how much. The coin and amount of a private send. Your share of the pool.
What stays visible: deposits (your wallet, coin, amount), withdrawals (coin, amount, recipient), the private accounts on both sides of a send, and every trade on the curve.
Is this full anonymity?
No. It keeps your bag off wallet trackers and copy-traders. A determined analyst who follows the transactions can still link your wallet, your private account and your trades.
Will Axiom or GMGN still see my coins?
While the coins sit in your wallet, yes. Once shielded, they leave your wallet and trackers stop showing them under your address. The shield transaction itself is visible.
Why is the privacy pool a top holder of a coin?
Shielded coins from every private holder sit in one shared pool account. It is not one whale and not the dev. Each coin page shows the % of supply held privately.
Private balance
How do I open my private balance?
Connect your wallet on the Private page and sign one message. It is free and sends nothing. Then activate once: one transaction sends 0.02 SOL to your private account as gas and registers it.
What is the 0.02 SOL for? Do I get it back?
It is still your SOL. It sits on your private account and pays the network fees of your private actions (unshield, send, private trades). Top it up when it runs low.
Do you see my keys?
No. The keys are computed in your browser from your signature and stay in the tab's memory. They are never sent to our server.
Can I open my private balance on another device?
Yes. Sign the same message with the same wallet and you get the same private account. Some hardware or embedded wallets sign differently on each device; then you would see a different, empty account.
What is the difference between shield, unshield and private send?
Shield: wallet to private balance (fee 0.001 SOL). Unshield: private balance to any address (fee 0.001 SOL). Private send: private balance to someone else's private address, coin and amount hidden (fee 0.0005 SOL).
Trading
How does a private sell work?
Your coins go from your private balance to a fresh one-time address, it sells on the curve (or PumpSwap), and the SOL goes back into your private balance. Usually one atomic transaction. Fee: 1% of what you receive.
How does a private buy work?coming soon
Not live yet. This feature is built and tested on devnet, and will be switched on soon.
SOL from your private balance goes to a one-time address, it buys the coin, and the coins land in your private balance. Unused SOL comes back. Fee: 1% of the cost.
Do I pay a fee on normal buys and sells?
No. Public buys and sells on a coin page only pay pump.fun's normal trading fees. We add nothing.
Does it work after the coin graduates?
Yes. After graduation, private trades go through PumpSwap instead of the curve. This path is less tested than the curve, so start small.
My private trade failed or timed out. What now?
Most failures move nothing: just retry. If a multi-step trade was cut halfway, the Private page shows "Finish it". If a transaction is still pending, the retry waits until it settles, so you never pay twice.
Launching and creator fees
What does a launch cost?
No platform fee. You only pay pump.fun's creation costs, network fees and your optional dev buy.
Do you take a share of my creator fees?
No. Creators keep 100% of pump.fun creator fees. The platform takes 0%, on normal and private launches.
What is a private launch?coming soon
Not live yet. This feature is built and tested on devnet, and will be switched on soon.
The coin is created from a fresh launch address funded by your private balance. Your main wallet signs nothing and is not shown as the dev. The dev buy goes into your private balance by default.
It is not anonymity: the funding withdrawal names your private account.
How do I claim creator fees from a private launch?coming soon
Not live yet. This feature is built and tested on devnet, and will be switched on soon.
Open My launches on the Private page. It shows unclaimed fees, previews the exact amount and claims them into your private balance.
Can pump.fun change my coin's creator?
Yes. pump.fun admins can do a community takeover (CTO) or turn a coin into a holder-rewards coin. Future fees then go elsewhere; fees earned before stay claimable. We cannot block this.
OTC
How does an OTC deal work?coming soon
Not live yet. This feature is built and tested on devnet, and will be switched on soon.
The seller posts an offer and locks the coins in an escrow. A buyer takes it and has 15 minutes to pay privately. Then the escrow pays both sides at once, minus 0.5% per side (1% total).
Is OTC trustless?coming soon
Not live yet. This feature is built and tested on devnet, and will be switched on soon.
No. It is a custodial escrow: our server holds the escrow key of each open deal. You trust us to release the funds.
Can I cancel an offer? What about refunds?coming soon
Not live yet. This feature is built and tested on devnet, and will be switched on soon.
The seller can cancel any time before settlement and gets the coins back. Expired offers are refunded too. Late or partial payments are refunded to the payer (watched for 3 days).
Safety and recovery
What is "Scan for stuck funds"?
It checks the one-time addresses used by your private trades, on-chain, even from a new device. Anything left there goes back into your private balance. Nothing is sold.
What if I lose my wallet?
Then you lose the private account too, like any self-custody wallet. It is opened only by your wallet's signature. We cannot recover it for you.
Is it safe to sign the message?
On hiddenpad.fun, yes: it is free and sends nothing. But anyone who has that signature can move your private balance. Never sign it on any other site.
What are the main risks?
Helius Privacy Rings is in beta and its proofs can time out (retry). Privacy is not anonymity. OTC is custodial. And pump.fun coins are very risky. Not financial advice.