On-chain security analysis — is it a scam or legit?
The OptimismMintableERC20 contract is a standard bridge-compatible token implementation.
Read the full analysisEach factor is an on-chain fact recorded at the time of this analysis. The score is computed from them by a deterministic function, so the same contract returns the same score for anyone who runs the audit. How scores are computed
Share held by contracts — treasury, vesting, bridge or staking — is discounted against share held by wallets when the score is computed: a contract cannot decide to sell the way an anonymous holder can, though it can still be drained or voted to sell. Effective concentration is the figure the risk score is actually calculated from.
Holder balances as recorded by the audit of Oct 25, 2026
The risk score reads depth across every pair.
The LP tokens of the analysed pool are not locked or burned, so whoever holds them can withdraw that liquidity.
0xfcbc…139e0xdb77…59700x4ead…48fe0xc0c5…5e720x5c14…24dfNo privileged address appears among these holders: the unlocked liquidity sits with independent providers, not with the deployer.
The mint function allows a privileged bridge address to create new tokens at will. This increases the total supply and dilutes the value of existing holdings.
Ensure the bridge address is secured by a multi-signature wallet and that minting events are monitored by an automated alerting system.
Unresolved
0.0% of the pool's LP is burned or time-locked. 100.0% is held, unlocked, by 3 address(es) other than the owner/deployer. One of them — a wallet, 0xfcbc…139e — holds 92.5% and can remove that share at once; who controls it is not visible on-chain, so it is not treated as an independent provider. Some pools are concentrated-liquidity (V3/V4) positions; shares above are by position as GoPlus reports them.
Check the lock's end date and beneficiary on the locker's own page before relying on it.
Acknowledged
The ten largest holders own 67.8% of supply. Of that, 7.1% in DEX pools — not holders that can sell, so excluded from the concentration score. What remains: 19.3% in wallets, 41.4% in other contracts. 74,822 holders in total.
Watch the largest wallets that are not exchanges, pools or locks — those are the ones that can move the price.
Acknowledged
Listed on CoinGecko as Onyxcoin (XCN), market cap $155M, rank #205. 74,822 holders. Verified by: CoinGecko.
Match the contract address against the project's official channels before trading.
Acknowledged
Liquidity $178K (DexScreener, all pools). 24h trading volume $5.5M (CoinGecko, all markets, daily snapshot). 24h trading volume $60K (DexScreener, all pools). CoinGecko's record for this coin: all-time high $0.184 on 2022-05-27; the price is now 97.8771% below it.
Size any position to the liquidity and daily volume shown — they set how much you can sell and at what price.
Acknowledged
A token issued by a project for use, governance or fundraising. Scored on its contract and market facts. The class itself adds no points; the contract and market facts decide the score. Basis: no class-specific evidence. Tokenomics — Supply: mintable with no on-chain cap found. Control: bridge — a contract. Code: not upgradeable (no proxy). Fees: no buy or sell tax. Market: $178K of DEX liquidity across 5 pools. Launch: 833 days of market history.
Check the project's own documentation for what the token is used for; this report covers what the contract allows.
Acknowledged
The OptimismMintableERC20 contract is a standard bridge-compatible token implementation. It follows established patterns for cross-chain asset transfers. The architecture is robust, though it inherently relies on the security of the bridge controller to manage token supply.
The contract utilizes standard OpenZeppelin-style ERC20 logic, ensuring high compatibility and reliability. 7.1 Architecture follows the standard bridge-mintable pattern. 7.2 Code Security is maintained through simple, well-audited logic. 7.3 Access Control is strictly enforced via the onlyBridge modifier.
7.4 Economic risk is tied to the bridge's ability to mint tokens. 7.5 Governance is centralized within the bridge contract, which is expected for this architecture. The primary economic risk is the potential for supply dilution if the bridge controller is compromised.
7.7 Upgrades are not applicable as this is a non-proxy contract. The implementation is immutable, which provides high security against logic changes. 7.8 Operations are standard for bridge-minted assets.
The contract is well-implemented for its intended purpose as a bridgeable asset.
Ensure that the bridge contract address is managed by a secure multi-signature wallet or a robust governance mechanism to mitigate the risk of unauthorized minting. Regularly monitor the bridge contract for any anomalous minting activity. No further code changes are required for the current implementation.
Free for any token on the record. It links to this page and always shows the current score and the date it was checked.
Score changes are recorded as dated snapshots — history is append-only and cannot be edited.
The Onyxcoin (XCN) contract on Base is 0x9c632e6aaa3ea73f91554f8a3cb2ed2f29605e0c. Compare it with the address the project itself publishes before trading: other contracts can carry the same name and ticker.
Quantum Audit's risk score for Onyxcoin is 40/100 (Medium risk) as of Oct 25, 2026, computed by a deterministic function from on-chain facts — Contract verified: Verified; Ownership: Retained; Mint: Mintable; Liquidity lock: Not locked; Upgradeability: Fixed code; Honeypot: None found; Buy / sell tax: 0% / 0%. A score is a dated snapshot of those facts, not a guarantee; each one is listed on this page.
Liquidity lock: Not locked (as of Oct 25, 2026). Total DEX liquidity: $178.0K.
As of Oct 25, 2026, the 10 largest holders own 67.8% of the supply across 74,822 holders. The Holders section on this page shows who they are by holder type.
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