Make Your Arc Token Safe: The Full Pre-Launch Safety Pass

Most of the ways a token can hurt its holders are visible onchain before anyone buys. Supply that can be inflated, taxes that can be raised, a pool whose liquidity can be withdrawn, a wallet holding most of the float — these are contract state, not secrets, and anyone can read them.

That is the premise of the Arc Token Checker, which is free, needs no wallet, and reports those facts with links to the evidence. This guide is the pass you run after launch: check, fix, renounce, lock, burn, verify — in that order, it turns a deployed contract into one whose remaining risks are stated rather than hidden.

Before you start

• The token address. Nothing else is needed for the first step: the check is read-only, so you can review a token you did not deploy and do not hold.
• The owner wallet, for the steps that change state. The renounce, the lock and the burn each need a signature and cost a flat 50 USDC on Arc Mainnet, plus cents of gas.
• A block explorer tab open. https://explorer.arc.io is where you verify the changes landed. Chain id is 5042 and the RPC endpoint is https://rpc.mainnet.arc.io if you need to add the network, per Arc's connect guide.
• A realistic attitude to what this fixes. A clean pass removes specific capabilities; it cannot remove concentration or prove intent.

One scope note, stated plainly rather than buried: Arctools is not affiliated with Circle or the Arc Foundation, and the checker is a read of public contract state — not an audit, not an endorsement and not a guarantee.

1. Run the checker and read every finding

Paste the token address into Arc Token Checker. It reports six things:

1. Ownership. Whether an owner role still exists and what it can still call.
2. Mint authority. Whether supply can be created, and up to what cap.
3. Tax surface. Buy and sell taxes, and how far they can still be moved.
4. Restrictions. Maximum transaction and wallet limits, trading switches and any blacklist mechanism.
5. Concentration. The largest holders, the deployer's share and how much supply is genuinely distributed.
6. Liquidity. Whether the pair exists, how deep it is, and whether the LP tokens are locked, burned or sitting in a wallet that can withdraw them.

Every finding links to the contract read behind it, so you can check the conclusion instead of trusting it. That matters more than a score would: a score compresses six independent risks into one number, and each calls for a different response.

Expect your own token to be flagged: a fresh launch has an owner, adjustable taxes, possibly a mint function and probably unlocked liquidity. Each finding is true, and each is a capability that exists until you remove it.

2. Fix the settings the checker flags

This is the only step that must happen before the renounce, which deletes your ability to do it. Work through the findings with the Arc Token Manager in one session:

• Set taxes where they will stay. Rates you intend to hold for years, not as low as possible for appearances, and published whatever they are.
• Zero the transfer tax. Wallet-to-wallet taxation is a negative signal with almost no upside.
• Raise limits that block buyers. A max transaction smaller than a typical purchase produces reverted buys that look like a broken token.
• Add every exemption your infrastructure needs — the pair, the router, any locker, treasury or multisender contract. Exemptions cannot be added after the renounce.
• Point tax revenue at addresses you are willing to name. Recipient wallets are readable, so choose ones whose purpose is obvious.
• Decide the mint question. If the token stays mintable, cap it as tightly as your plan allows and say so; if not, the switch to a fixed supply is your last chance to change it.

The mechanics of each change are in manage your Arc token after launch.

3. Renounce ownership

Renouncing sets the owner to the zero address. After that, no address on any chain can change taxes, mint supply, alter limits, add exemptions or blacklist a wallet. Trading, transfers and pool interactions carry on as before — only the administrative functions stop existing.

The Revoke Ownership tool detects the owner, prints a plain-language summary of every capability you are giving up, and renounces only after you confirm. Read that summary as a checklist against step 2: anything still on it that you wanted to change is a change you will never be able to make.

Renouncing is irreversible by design: a renounce that could be undone would prove nothing, so the capability is removed at contract level rather than promised socially. If you are not ready, move ownership to a multisig instead — a real improvement over a hot wallet, and it keeps the option to fix something urgent.

One caution: the capability is what buyers check. A renounce that never leaves the spreadsheet is reported as an active owner, correctly.

4. Lock or burn the liquidity

Liquidity is the risk that matters most. A renounced token with an unlocked pool still lets the deployer withdraw the USDC that buyers spent — and buyers know it, because the checker says so.

• Lock. Send the LP tokens to the Arc Liquidity Locker with an unlock timestamp anyone can read. Twelve months is the common choice for a first launch, and the liquidity lock guide covers duration and verification.
• Burn. Stronger still: the liquidity can never be withdrawn by anyone, and it is permanent, ruling out pool migration and reclaiming the capital.
• Do neither, honestly. Rarely right — but if you keep the LP liquid, say so and do not call the liquidity locked. Contradicting the explorer loses the audience you built.

If you created the pool through the Liquidity Pool Creator, this is the same choice you were offered then; locking a fresh position later is normal.

5. Burn supply you do not intend to use

Supply held in a treasury wallet is not the same as supply removed. Burning calls the burn function so total supply genuinely decreases: the explorer's supply figure falls and the tokens cannot return.

Two mechanical points on Arc:

• Burn properly. Sending tokens to a dead address leaves total supply unchanged, so supply metrics still count them. Use the token burn tool, which calls burn() and previews the new total supply.
• Do not try to burn native USDC by sending it to the zero address. Value transfers to address(0) revert on Arc, and burning a native balance is not a mechanism that exists; ERC-20 burn() is unaffected. See EVM differences.

Burn what you have decided against: unsold allocation, unclaimable airdrop residue, treasury supply you will never deploy. Keep what you may need for liquidity, grants or a buyback.

Concentration is worth revisiting here, because burning is one of the few tools that addresses it. If one wallet holds 70% of supply, no renounce and no lock makes that token safe for buyers — the holder can still sell into the pool. Burning, airdropping to real users or vesting in public are the remedies, and none are instant.

6. Re-run the check and publish the evidence

Run the checker again and compare: ownership should read as renounced, taxes at final values, liquidity locked or burned. Whatever still appears — concentration, a thin pool, a tax that exists at all — is your honest residual risk.

Then publish it in a form others can verify:

• The token address and the pair address.
• The renounce transaction hash.
• The locker or burn transaction, and the unlock timestamp in plain language.
• The burn transactions and the new total supply.
• The risks you have not removed, described accurately.

Buyers who do not have to dig through your history to find the discouraging facts are more likely to buy.

7. Keep the habits that keep a token safe

The pass is a snapshot, not a permanent state. Three habits keep it honest:

• Watch concentration. Run the free snapshot tool periodically and compare top-10 holdings against launch day. Vesting cliffs, large exits and new liquidity move that number — the risk a renounce cannot touch.
• Disclose before you act. No admin function is left to change, but you can still communicate: a re-lock, a new pool, added liquidity or a burn all belong in public before they happen.
• Never let anyone call this an audit. A read of public contract state is evidence, not assurance. If a reviewer or listing site calls a checker result an audit, correct them.

Re-run the checker after every material change.

What it costs

Step	Tool	Fee
Check the token	Token Checker	Free
Fix taxes, limits, exemptions	Token Manager	50 USDC per session
Renounce ownership	Revoke Ownership	50 USDC
Lock the liquidity	Liquidity Locker	50 USDC
Burn unallocated supply	Token Burn	50 USDC

A complete pass is therefore 150 USDC, or 200 USDC if you need a settings session, plus gas. Gas is charged in USDC at Arc's 20 Gwei floor: 100,000 gas costs 0.002 USDC, so the whole pass costs under 0.10 USDC in gas.

Common mistakes

• Renouncing first. Exemptions and tax rates become permanent as-is. Fix settings, then renounce.
• Locking liquidity while supply can still be minted. The mint is the remaining hole, so cap or renounce it.
• Claiming an audit. A state read is not an audit, and repeating the word after someone else applies it is still a false claim.
• Assuming a clean check means safe. Intent is not in contract state: an insider holding most of the supply can still sell into every buyer.
• Burning LP you will want back. Burning the pool is permanent; locking is usually the better first move.
• Keeping the evidence private. Verification is the product. Publish the hashes.

Where to go next

Safety is a state you maintain, not a box you tick. Use the free snapshot tool to watch concentration over time: the export shows top-10 holdings and the deployer's share, the number that quietly drifts after a launch. If you are still at the beginning and want to build the safety pass into day one rather than retrofitting it, launch with the bundle launch guide so liquidity, buys and the LP destination are decided before the first outside buyer arrives.