Most people who miss an airdrop don't miss it because they were unlucky. They miss it because a project's filter rejected them on a rule they never read. Eligibility is a checklist, and your wallet either matches every line or it doesn't. There's no customer service line to call afterward.
What makes this harder than it sounds: every project writes its own checklist, and a few keep parts of it private until after the snapshot block has already passed. You find out you were ineligible at the same moment you find out everyone else got paid.
What "eligibility" means in practice
An airdrop is a distribution with a gate in front of it. Projects use that gate to reward genuine users, keep out sybil farmers, satisfy regulators, or push liquidity into a new network. The criteria range from one line (hold at least X tokens on a given date) to a stack of five (bridge funds, make three swaps, hold a specific NFT, link a social account, and fill out a form).
Two terms decide most outcomes. The snapshot is the exact block or timestamp a project reads your balance from. The criteria window is the stretch of time during which your activity counts. Both are usually announced ahead of time. Usually is not always.
On-chain versus off-chain criteria
On-chain criteria can be checked by anyone with a block explorer: wallet age, transaction count, gas spent, tokens held, protocols touched. Off-chain criteria sit in a project's own database: an email signup, a Discord role, testnet activity logged on a private server, or a form you filled out months ago and forgot about.
The off-chain side is where careful users get eliminated. A project may require you to have linked a wallet to its dashboard before a deadline. Nothing on-chain records that link. Skip it and your address reads as ineligible even though your trading history was flawless.
Why sybil filters catch honest users
Projects run clustering analysis to find one person running many wallets. The usual triggers: identical funding sources, wallets funded minutes apart, matching gas patterns, circular transfers between addresses. If you withdrew to five wallets from the same exchange address in one batch, a filter may treat all five as one entity and flag the set. Honest users get swept up this way, and most projects offer no appeal.
The snapshot is the moment that counts
Consider a trader holding 12,000 governance tokens across two wallets. Three days before the snapshot date, one wallet was emptied to cover a margin call. The other still held its full balance. The airdrop required a minimum holding on both addresses to reach the top reward tier. Outcome: nothing from the emptied wallet, and the surviving wallet dropped a tier. A meaningful chunk of expected value vanished on timing alone.
Snapshot rules differ by project. Some read balances at a single block. Others average your holdings across a period. A few sample at random points inside the window. You can't game a rule you can't see, so the safe habit is to keep qualifying balances in place for the entire announced window, not just on the day you think matters.
How to check whether you qualify
Most projects publish a checker page: paste an address, get a yes or no, sometimes with a breakdown. Run it before you celebrate. Checkers go live at different stages, and early versions ship with bugs.
- Paste every address you've used, not just your main one.
- Read the criteria list line by line and match each item against your actual history.
- Confirm the snapshot block or date, then verify your balance at that exact point on a block explorer.
- Look for off-chain requirements you may have missed, such as a form or a linked account.
- Note the claim deadline. Unclaimed allocations often go back to the treasury.
If the checker says no and you believe you qualify, look for a dispute form. Some projects open one for a short window. Most don't.
Mistakes that cost people their allocation
Spinning up fresh wallets for everything
A wallet created last week has no history to reward. Age and activity are the two most common criteria, and both take time to accumulate. If you're positioning for future drops, run a small number of wallets consistently instead of creating a new one for each interaction.
Treating eligibility and claimability as the same thing
They're separate. You can pass every criterion and still receive nothing if you don't claim before the deadline closes. Set a reminder for the day claims open, and don't depend on a notification from a project you barely follow.
Clicking phishing "checkers"
Fake eligibility sites cluster around major drops. A real checker never asks for your seed phrase or a signature that grants token approval. Bookmark official links from the project's verified channels, and treat any DM offering to "check your allocation" as hostile.
| Criteria type | Where it's recorded | How to verify |
|---|---|---|
| Token balance at snapshot | Blockchain | Block explorer at the snapshot block |
| Transaction history | Blockchain | Explorer, filtered by date range |
| Social or form tasks | Project database | Project dashboard or support |
| Testnet participation | Project servers | Official checker or announcement |
Where MGBX fits into your airdrop routine
If you trade or hold assets on an exchange, that account lives in a separate environment from your self-custody wallets. Activity on a platform like MGBX won't count toward on-chain criteria unless the project explicitly includes exchange balances or the platform runs its own distribution. Read the rules for each drop and confirm which addresses and accounts the snapshot covers. Assuming your exchange balance counts when it doesn't is a quiet way to miss out.
Frequently asked questions
Can I become eligible after the snapshot?
No. The snapshot fixes the set of qualifying addresses. Activity after that block doesn't retroactively count for that distribution, though it may count toward future ones. If a project announces a second phase, new criteria usually apply.
Do I need to pay taxes on airdropped tokens?
Tax treatment depends on your jurisdiction and varies widely. Many countries treat an airdrop as income at fair market value on receipt, with later gains taxed separately. Rules change, so check with a local tax professional rather than relying on forum advice.
Why did my wallet get flagged as a sybil?
Sybil filters look for patterns suggesting one person controls many wallets: shared funding sources, synchronized transactions, identical behavior. Honest users get caught when their wallets share an exchange withdrawal address or were funded in the same batch. Some projects offer an appeal process, but most don't.
Pick one wallet you actually use, verify its balance at the last announced snapshot block, and write down the claim deadline before you do anything else.