zkSync Defends Airdrop Criteria as Binance Offers ZK Listing and Distribution

Ethereum zero-knowledge layer-2 scaling platform zkSync has continued to defend criticism over the criteria for its zkSync (ZK) token airdrop.

Ethereum Layer-2 scaling solution zkSync has continued to face criticism over the criteria for its upcoming zkSync (ZK) token airdrop, which is slated to launch on June 17.

In a frequently asked questions (FAQ) document updated on June 15, ZK Nation answered 15 questions that were mostly aimed at explaining why some groups were eligible for the token airdrop while others were not.

One of the longer answers focused on its detection and prevention measures for Sybil attacks, which occur when one entity creates and uses a large number of wallets to farm an airdrop — an issue that was brought up by several airdrop claimants last week.

ZkSync reiterated that it had used “explicit” Sybil detection in addition to a “unique airdrop design” to ensure that the highest number of organic users were rewarded, but it also noted that this measure may have allowed some Sybil wallets to slip through the cracks. According to Cointelegraph, ZkSync explained that some Sybils can employ sophisticated algorithmic strategies that are indistinguishable from real people.

“They fund accounts from many distinct exchange addresses, never interact with each other, use randomized amounts, and use software to randomize daily patterns of human behavior, and even perform activities unique to the project (for example, using zkSync paymasters),” it explained.

ZkSync claimed that being too aggressive with filtering could eliminate some Sybils but also might falsely flag many organic users — so it chose to reward organic users with “high likelihood” by using a combination of value scaling and multipliers.

Essentially, this assigned fewer eligibility points to wallets with low funding (a sign of Sybil behavior) but would give them a multiplying boost if there was onchain behavior that signaled human behavior.

ZkSync explained that Sybils typically create many accounts but use small amounts of crypto to fund each account to be capital efficient.

“Real people, on the other hand, tend to concentrate most of their wealth in just a few accounts, making their balances much larger compared to bots,” it explained. 

“There will be Sybils in every airdrop,” it concluded. “However, for every example of Sybil that can be identified, there are hundreds that were excluded.”

Binance offers ZK listing and distribution amid “ongoing concerns”

Separately, crypto exchange Binance has offered its own ZK airdrop — targeted at those who were not eligible for the official airdrop on June 17.

The exchange announced that it will offer 10.5 million ZK tokens to over 52,000 Binance users in “light of the ongoing concerns from the community around ZK token distribution.”

News source：https://www.kdj.com/cryptocurrencies-news/articles/zksync-defends-airdrop-criteria-binance-offers-zk-listing-distribution.html

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