What is an airdrop, and how does a snapshot work?
An airdrop distributes tokens to eligible addresses. Uniswap's historical UNI distribution illustrates snapshots, claims and why using a protocol is not a promise of rewards.
In brief
An airdrop distributes a project's tokens to selected addresses. Common aims include rewarding past users and broadening participation in governance.
How a snapshot works
A snapshot records the chain's state at a particular point. Eligibility is assessed against that record, rather than later activity.
Uniswap's own UNI announcement provides a historical example:
- The snapshot was taken as of 1 September 2020 at 00:00 UTC.
- Each address that had called Uniswap v1 or v2 was entitled to 400 UNI, covering 251,534 historical user addresses.
- Fifteen percent of the supply, 150 million UNI, became immediately claimable by historical liquidity providers, users and SOCKS holders.
- Liquidity-provider allocations accounted for contribution over time, with additional weighting when overall liquidity was lower.
This illustrates how distribution rules can consider when and how much an address participated, not simply whether it used the protocol.
The claim step
Tokens do not always arrive automatically. Eligible users may need to interact with a claim contract.
A legitimate claim transfers an allocation. A look-alike page may instead request authority to spend assets already in the wallet. Similar screen designs do not imply equivalent transactions.
Expectations are not announcements
Using one project does not guarantee that it will distribute a token. A distribution by another protocol is not evidence of entitlement. Until the project explicitly announces terms, an anticipated airdrop remains unconfirmed.
Risks
Biggest uncertainty Using a protocol does not establish a right to an unannounced future distribution.
Fake claim pages can imitate official ones. Read the actual call and verify its destination through official channels.
Projects determine eligibility rules and snapshot dates. Airdrop farming has no assured return, and this guide does not measure its profitability.
How CryptoAlpha uses this
Only officially announced distributions belong in an event listing. An unsupported airdrop claim remains a research lead rather than a published promise.
Sources
This article rests on the sources below. Whether each has a permanent copy is stated next to it.
- #1
Primary source cited by the Turkish original. Recheck before publication.
blog.uniswap.org· no permanent copy· no screenshot
Evidence chain: 1 sources
Tweets get deleted, sites go down. Below is whether a durable copy exists for each source.
Sources (1)
- #1
Primary source cited by the Turkish original. Recheck before publication.
blog.uniswap.org/uni- no durable copy: if the source disappears, this claim loses its basis
- no screenshot captured