Security
Don't trust us. Verify it.
Every safeguard is in the code and readable on-chain.
- Non-custodialOnly the owner or beneficiary can withdraw.
- No admin accessNo function can move, unlock or cancel a deposit.
- Not upgradeableNo proxy, no pause. The code cannot change.
- Fee-protectedYou pay exactly the fee you saw, or nothing.
Check it yourself
Live from the chain, block 21555209, 2026-09-18 20:31:36 UTC
Locker
Source verified (Sourcify)- Contract
- 0x1a74…5936(opens in a new tab)
- Fee
- 10 USDC + 0%
Burner
Source verified (Sourcify)- Contract
- 0x65b0…7a55(opens in a new tab)
- Fee
- 10 USDC + 0%
Vesting
Source verified (Sourcify)- Contract
- 0xc710…27d5(opens in a new tab)
- Fee
- 10 USDC + 0%
The admin
Can
- Set fees for new actions
- Change the fee collector
- Hand over the admin role
Cannot
- Touch deposits
- Unlock or cancel early
- Change vesting
- Pause or upgrade
Tested
- 117
- contract tests on Arc rules
- 7
- fuzzed invariants
- 35/35
- removed guards caught by tests
- 0
- open Slither findings
Risks to know
- No third-party audit yet.
- Circle can freeze USDC held in a contract.
- Rebasing or sender-taxed tokens can leave the last withdrawal short.
- The flat fee has no cap, but you always see it before signing.