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The vault with a delay · Solana and Ethereum

Your savings, out of reach of anyone in a hurry.

Nothing leaves without a delay you choose. A drainer, a phishing signature, a stolen key or a bad night all hit the same wall: time. You see it coming, and you cancel.

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Someone just asked to withdrawTry it
24.00SOL
to 9cRt…X2pa · a drainer you signed by mistake
can leave in71:59:48
0 attacks stoppedReal vaults work exactly like this.
Testnet beta · not audited · test coins only

Protection from every threat

See it happen
Threats

A drainer gets your signature. It still has to wait.

Withdrawal requested24.00 SOLleaves in 71:59:48Cancel and keep it

Phishing tricks you once. You have days to notice.

Verify your wallet to claim 500 USDCQueued · can leave in 3 daysCancelled. It never left.

A stolen key can only make the rules stricter.

Shorter delay waits 7 daysThief's address as trusted waits 7 daysThief as guardian waits 7 daysStricter rule applies now

Someone forcing you gets the same answer you would.

72:00:00No one can make it faster. Not even you.

Your own 3 a.m. Sleep on it.

Cancelled at 9:14 am

See it for yourself.

Request a withdrawal with test coins, watch the clock, then cancel it.

Open the app

Not just thieves. Also urges.

Gambling urges, revenge trades, panic sells, FOMO. They all want the money now, and they fade in hours. Ecrin makes your money wait days, so the urge is gone before the money can leave.

Urges

The urge to gamble passes. The delay doesn't.

Just one more bet. I'll win it back.Queued · can leave in 3 daysCancelled the next morning.

Revenge trading needs money now. It gets it in 3 days.

72:00:00Long enough for the anger to pass.

Chasing a pump? It's over before your money can move.

Withdrawal requested5.00 SOLleaves in 71:59:12Changed my mind

Locked mode: nothing leaves before your date. Not even for you.

Withdraw now locked until March 1Shorten the lock not possibleShorter delay waits 7 daysLock it longer applies now

Decide when you're calm. Ecrin holds you to it.

Set your delay or a lock date on a good day. Ecrin is a tool, not treatment: if gambling is hurting you, talk to someone you trust or a local helpline.

Set it up

Delay, cancel, & keep

Questions
Three ways out

Pay your own addresses instantly.

Your exchange, your bank off-ramp, your cold wallet. Adding a new one waits days, or needs your guardian.

BBank off-rampInstantCCold walletInstant?New addressWaits 7 days

Anything else waits. Cancel any time.

From an hour to a year: you choose. Every withdrawal shows a countdown, and cancelling is free.

71:5948suntil it can leave

Loosening a rule waits days. Tightening is instant.

A shorter delay, a higher limit, a new trusted address, any guardian change: all of these wait.

Withdrawal delay72 hDaily limit5 SOLRaise limit · applies in 7 days
  1. Create a vault. An account on the chain that only your wallet controls. Ecrin never touches your keys.
  2. Pick your protection. Gentle, Strong or Locked; add trusted addresses and, if you like, a guardian.
  3. Live normally. Pay your own accounts instantly. Everything else waits, and you can always change your mind.

Every coin. Every chain.

One vault per network, the same rules everywhere. USDC sits next to your SOL, ETH or POL, with its own daily limit.

SolanaEthereumBaseArbitrumOptimismPolygon
A bad day, with Ecrin

The attack works. The money stays.

Before

All quiet.

Your savings sit in the vault. Your own trusted addresses can be paid instantly; everything else has to wait.

0:00

Your key leaks.

A thief signs a withdrawal of everything to their own address. On a normal wallet, this is the end of the story. Here, Solana itself queues it for your delay, and it shows up with a countdown.

0:20

You press Cancel.

Free and instant. Then you get out on your terms: pay your own trusted address, or request a withdrawal to a fresh wallet and have your guardian release it on the spot.

72:00

Nothing was taken.

The thief can't shorten the delay, add their address as trusted, or name their own guardian without waiting days. A key can make the rules stricter, never looser: at worst it freezes the vault, it never empties it.

Controlled by you, guarded by time.

The rules live on the chain, not in an app. Close the website, import your key somewhere else: every delay still holds.

Your security

Non-custodial. Ecrin never holds your keys or your money.

Only your wallet can ask for a withdrawal.

Alerts within a minute, on Telegram or by email.

⏳ Withdrawal requested · 25 USDCNot you? Cancel it. It's free.

A guardian can help in an emergency, never take your money.

Release a withdrawal you asked for yesStart a withdrawal neverChoose where money goes never

Open source, tested on every change.

✓ Solana program tests✓ Ethereum contract tests✓ browser app, end to end

Not audited yet.

Test networks and test coins only. Mainnet comes after an independent security audit, with deposit caps at first.

Every shortcut we know of, and why it fails · full security page

Way around itWhy it fails
Import your key into another walletThe key can only request a withdrawal. The program still enforces the wait.
Turn the rules offLoosening any rule waits days, and never before a lock ends.
Add the attacker's address as trustedNew trusted addresses wait days, or need your guardian's approval.
Name a second wallet as guardianAny guardian change waits days, so no one can approve their own withdrawal.
Sell a receipt token for instant SOLUnlike liquid staking, there is no token to sell.
The developer changes the codeThe program will be made immutable after its audit.

A hardware wallet protects your key. Ecrin protects your money.

They work best together: sign for your vault with a hardware wallet, and both have to fail before you lose anything.

Hot walletHardware walletEcrin vault
You sign a drainer by mistakeLostLostCancel it
Your seed phrase leaksLostLostTime to react
Someone forces a transferInstantInstantDays away
A 3 a.m. impulseInstantInstantSleep on it
Paying your own accountsInstantInstantInstant to trusted
Undo a mistakeNeverNeverAny time before it runs

Choose how strong. Change it slowly.

Gentle

Everyday savings with a safety net.

  • Withdrawals wait 24 hours
  • Looser rules wait 3 days
  • Guardian optional
Recommended

Strong

For the money you really can't lose.

  • Withdrawals wait 72 hours
  • Looser rules wait 7 days
  • Guardian for emergencies

Locked

For savings that must not move.

  • Nothing leaves before your date
  • Emergency exit with your guardian
  • Looser rules wait until the date

Security first. Then yield.

Roadmap
Now

Testnet beta

  • SOL, ETH, POL and USDC vaults on six test networks
  • Delays, trusted addresses, guardian, lock and daily limits
  • Telegram and email alerts, WalletConnect, home-screen app
  • Ecrin Wallet for Chrome, in beta: a Wallet and a Safe in one
Next

Audit

  • Independent security audit of the program and the contract
  • Fixes, then a public report
  • More stablecoins
  • Ecrin Wallet on the Chrome Web Store, then iPhone and Android
Later

Mainnet and yield

  • Mainnet with deposit caps at first
  • Staking inside the vault: earn yield, keep every delay
  • Opt-in lending, only after its own audit
Who it's for

Anyone whose savings shouldn't be one tap away.

  • Long-term holders
  • People stepping back from gambling, where Ecrin started
  • Families and small teams

If gambling is hurting you right now, you're not alone. Search for your country's gambling helpline; most are free, confidential and open all night.

Testnet beta · Chrome

Ecrin Wallet.

Two accounts from one recovery phrase. Your Wallet spends instantly, like any wallet. Your Safe is an Ecrin vault: anything leaving it waits, and you can cancel it the whole time. Solana, Ethereum, Base, Arbitrum, Optimism and Polygon, with 25%, 50% or Max, a clear review of what leaves, and a warning before a new address.

Download for Chrome (beta) Try the live demo

Not on the Chrome Web Store yet. To install: unzip the file, open chrome://extensions, turn on Developer mode, click Load unpacked and choose the folder. Test coins only.

One email when it's on the Chrome Web Store. Nothing else.

FAQ

Questions, answered.

Is my money safe? Who holds it?

Your funds sit in a program account on Solana tied to your wallet. Ecrin never has your keys and can't move your funds. Only your wallet can request a withdrawal, and only the program's rules decide when it can run.

What if someone steals my key?

They can only ask to withdraw, and that waits your full delay, so cancel each request before it runs (Telegram and email alerts tell you within a minute). To move out, pay one of your trusted addresses, or request a withdrawal to a fresh wallet and have your guardian release it at once. A stolen key can make your rules stricter but never looser: it can't add its own trusted address, shorten a delay or name a guardian without waiting days, so at worst your funds are frozen, not taken. That's why we recommend a guardian on Strong.

What if I have a real emergency?

Your guardian can co-sign a withdrawal you already requested so it runs immediately. They can't start one, change the amount or pick where it goes. You can also always pay your trusted addresses instantly.

Can my guardian take my money?

No. A guardian can only approve something you asked for: an emergency release of your own withdrawal, or a trusted address you proposed.

Will I be able to earn yield?

That's the plan: native SOL staking where the stake stays inside the vault, so you earn rewards without creating a fast way out. It comes after the audit.

What can I store?

During the beta: SOL and USDC on Solana devnet, and ETH (POL on Polygon) and USDC on Ethereum Sepolia, Base, Arbitrum, Optimism and Polygon test networks. Each coin has its own balance and daily limit under the same rules.

Does it cost anything?

The devnet beta is free, using test coins. You only pay normal network fees, a fraction of a cent.

Is it live on mainnet?

Not yet. Ecrin runs on test networks while it's being tested. Mainnet comes after an independent security audit, with deposit caps at first.

Why "Ecrin"?

An écrin is the case that keeps something precious safe. That's the whole idea.

Free on test networks · takes a minute

Get started. Open Ecrin.

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