How It Works

How Airdrops Work

Dropsy's airdrop mechanism combines Merkle proofs with on-chain verificationfor secure, scalable token distribution.

Trustless

Verifiable recipient eligibility

Efficient

Low-cost bitmap tracking

Time-bound

Enforced distribution windows

Step-by-Step Process
1
Initialize Airdrop

Creator specifies the token mint, merkle_root, and optional start/end times for the claim period.

2
Prepare ClaimMap

Offline generation of the Merkle tree containing all eligible recipients and amounts.

3
Initialize ClaimMap

Creator sets up bitmap tracking for up to 50,000 wallets before claims can begin.

4
Deposit Tokens

Tokens are locked in the airdrop's vault PDA, ensuring safety until claimed.

5
User Claims

Eligible wallets provide Merkle proofs to verify and claim their tokens.

6
Close Airdrop

After the end time, remaining tokens can be reclaimed by the creator.

Optimized Distribution

low gas costs

merkle root stored on-chain

Immutable schedule enforcement