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Detailed Explanation of Historical Airdrops and Witch Rules

Recently, the enthusiasm for the ARB airdrop seems to still be lingering, and many people are still rushing to participate in this unreleased project. So when everyone is busy with many wallets, how can we prevent witching? Here we need to know the witching rules of various projects before.

Image generated by Midjourney

Information integration from Twitter

UNI#

Airdrop Date: September 17, 2020
Total Airdrop: 15%
Airdrop Rules: 10.06% for the first 250,000 users, 4.92% for 49,192 early LPs, 0.02% for 220 SOCKS holders who have called v1 or v2 contracts, and 400 UNI for anyone who has interacted with the contracts.
Anti-witching rules: None
Eligible addresses: 312,726+
Airdrop per wallet: 400 UNI
Airdrop value: Sellable for around $3, worth about $1,500 per wallet

IMX#

Track: L2 public chain
Airdrop Date: July 22, 2021
Total Airdrop: 50 million
Airdrop Rules: Interaction, games, etc.
Anti-witching rules: None
Eligible addresses: No data
Airdrop per wallet: 1,262 IMX
Airdrop value: Sellable for around $3, worth about $4,000 per wallet

DYDX#

Track: DEX
Airdrop Date: August 11, 2021
Total Airdrop: 7.5%
Airdrop Rules: Interaction, etc.
Anti-witching rules: None
Eligible addresses: 64,306
Airdrop per wallet: 310-9,529 DYDX
Airdrop value: Sellable for around $10, worth about $3,000-$90,000 per wallet

ENS#

Track: Domain names
Airdrop Date: November 3, 2021
Total Airdrop: 25%
Airdrop Rules: 0.27 * (number of days the account has at least one ENS domain) + 0.062 * (number of days until the account's surname expires). If the account also has a main ENS name set, the total will be multiplied by 2.
Anti-witching rules: None
Eligible addresses: 137,000
Airdrop value: Sellable for around $30-$80, worth an average of $7,000 per wallet

PSP#

Track: DEX
Airdrop Date: November 15, 2021
Total Airdrop: 7.5%
Airdrop Rules: Very complex

Anti-witching rules:

Frequent interactions between multiple addresses.
Multiple sub-addresses interacting with the same parent address.
Total interactions on various chains less than 50 times or only interacting with ParaSwap.
Low asset balance within an address.
Only conducting transactions between native tokens and bundled tokens (e.g., ETH/WETH) or trading small tokens on ParaSwap.
A user may have 3-5 addresses they use for trading, and this situation is not eliminated.

Eligible addresses: 19,000
Airdrop value: Sellable for around $1.6, worth an average of $8,000-$17,000 per wallet

op#

Track: L2 public chain
Airdrop Date: April 27, 2022
Total Airdrop: 5.4%
Airdrop Rules: Including donations/interactions, etc.
Anti-witching rules: Not disclosed, only 17,000 witch addresses were announced, and many projects will determine witching based on these addresses.
Eligible addresses: 265,000
Airdrop value: 254-30,000, sellable at an average price of $2, around $4,000 per person

ARB#

Track: L2 public chain
Airdrop Date: March 16, 2023
Total Airdrop: 12.75%
Airdrop Rules: Officially announced formula

Anti-witching rules:

If all wallet transactions of the airdrop recipient occur within 48 hours, subtract 1 point.
If the wallet balance of the airdrop recipient is less than 0.005 ETH and the wallet has not interacted with more than one smart contract, subtract 1 point.
If the wallet address of the airdrop recipient is identified as a Sybil address during the Hop protocol bounty program, the recipient will be disqualified.

Eligible addresses: 625,143
Airdrop value: 625-10,200, sellable at an average price of $1.3, around $800-$13,260 per wallet.

These are some well-known airdrops and the rules for witching. When participating in future airdrops, please take appropriate precautions.

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