Locks no one can open early.

Lock tokenized stocks or meme-token supply on Robinhood Chain. No admin keys: only you can withdraw, after your date.

Lock tokens Read the contract

No owner keyOwnable isn't inherited; no admin role existsEvery function and its caller
Immutable, no proxyNo pause switch, no upgrade pathVerified source (opens in a new tab)
Extend-only datesUnlocks move later, never earlierRead extendLock
Flat fee 0.0025 ETHRead from the contract. Never a % of your tokensVerified source (opens in a new tab)

AMZN

Logos are trademarks of their owners and are shown for identification only.

One contract, two kinds of lock.

Tokens

Lock your supply. Prove it on-chain.

Liquidity and team tokens, locked by a contract with no owner.

Optional burn-on-exit, up to 100%
A public proof page and receipt for every lock
Unlock dates can only move later

Lock a token

Active locks: 0
Tokens locked: 0
Next unlock: None scheduled

See token locks

How a lock works

01 / Deposit
Deposit
Pick a token, an amount and an unlock date. The tokens move into the contract in one transaction.
02 / Wait
Wait
The countdown runs on chain time. Nobody, including us, can release the tokens early.
03 / Extend
Extend
The depositor can push the unlock date later to show commitment. It can never move earlier.
04 / Exit
Withdraw or burn
After the date, only the depositor can withdraw. Any burn-on-exit share goes to the dead address in the same transaction.

Live on-chain

Every lock and burn is public.

Latest activity

See all on Explore

No locks on this network yet.

Be the first lock

Next unlocks

No upcoming unlocks.

Active locks

Ring: lock length. Position: time to unlock.

Burn

Burn with a public receipt.

Send tokens to the dead address, or cut total supply where the token supports it, through one router with no admin. Every burn gets an id anyone can check.

One flat fee per burn, never a share of your tokens.
A lock can also burn a share at withdrawal: set it once, it runs when the depositor withdraws.
Stock tokens are never burned. Burning a tokenized share would destroy the claim behind it.

Coming soon on this network.

Virtuallock burn receiptExample

Burned: 25,000,000 ROCKET
Method: Sent to the dead address
Memo: season-2

Example receipt. A real one links its transaction.

Airdrops

Airdrops that prove they're funded.

Deposit the whole drop before you announce it. Holders see funded, claimed and remaining on the claim page, straight from a contract with no admin.

Fully funded at creation. The list can't change and nobody can pull the tokens mid-drop.
Tokens arrive liquid, or locked or vesting on a schedule the project sets.
After the deadline, the project can reclaim whatever is left unclaimed.

Create an airdrop

$DEMO community dropExample

Funded: 2,500,000
Claimed: 974,520
In escrow: 1,525,480

503 of 1,284 walletsDeadline 15 Jan 2027

Funded: 100% before announcement
Admin keys: None

Example drop. A real one links its escrow and funding transaction.

Developers

Build on the same contracts.

@vaultline-app/sdk

const { lockId } = await vl.lock({
  token: "0xToken",
  amount: 25_000_000n * 10n ** 18n,
  unlockAt: new Date("2027-10-03"),
});
await vl.extendLock({ lockId, unlockAt: new Date("2028-01-01") });

Typed TypeScript on viem. Fees are read on-chain before each call; none is hardcoded.

Public API

Any token's locked and burned figures as JSON. Free, no key.

GET /api/v1/tokens

Embeddable badge

Show what is locked on your own site. It updates itself.

Get the snippet on a token page

Partner fee

Apps that route burns receive part of each burn fee, paid on-chain by the router. Pass your address as partner in the SDK.

Read the docs

Read it yourself in five minutes.

Ownership: None. No admin role exists
Upgradeability: None. Immutable, no proxy
Unlock direction: Extend-only
Reentrancy guard: Enabled
Static analysis: Slither on every change, 0 high-severity findings
Source: Verified, open source

Verified source on the explorer Security model and audit status

TokenLock.solline 131

function extendLock(uint256 lockId, uint64 newUnlockTime) external {
    LockInfo storage lock = _locks[lockId];
    if (lock.owner == address(0)) revert LockNotFound();
    if (msg.sender != lock.owner) revert NotLockOwner();
    if (lock.withdrawn) revert AlreadyWithdrawn();
    if (newUnlockTime <= lock.unlockTime) revert UnlockTimeCannotDecrease();

    lock.unlockTime = newUnlockTime;
    emit LockExtended(lockId, newUnlockTime);
}

The only function that changes an unlock date. A new date at or before the current one reverts.

Every lock comes with a receipt.

Each lock gets a public page with every term and a link to the transaction behind it. It's an on-chain record anyone can check.

Create a lock See how locks are verified

Lock passExample

Lock #842 · Robinhood ChainLocked

250,000,000ROCKET

Rocket (example meme token) · 0x0000…00e1

182days left

Unlocks: 11 Apr 2027
Burn at exit: 10%

0x9e3779b9…1d0c18e95found

block

21,904,118 8 Oct 2026 · 18:27 UTCfinal

contract

TokenLock no owner · no upgradeverified

event

LockCreated decoded7 / 7

lockId: 842uint256
token: ROCKET 0x0000…00e1address
amount: 250,000,000uint256
depositor: 0x0000…00a1address
unlockTime: 11 Apr 2027 · 18:27 UTCuint64
burnBps: 1000 (10%)uint16
lockedAt: 8 Oct 2026 · 18:27 UTCuint64