BaseBuild launches VerifyOnchain to use on-chain authentication to solve airdrop witch attacks

According to official sources, BaseBuild announced the launch of BaseVerifyOnchain to solve the problem of witch attacks in the blockchain ecosystem. This feature has been launched on the BaseSepolia testing website, allowing developers to implement the "one real user, one collection" rule in smart contracts. BaseBuild said that the traditional airdrop mechanism is easily controlled by batch wallets, and a large number of rewards are often obtained by professional airdrop farmers, while users who actually participate in product construction can only receive limited benefits. BaseVerifyOnchain helps the project party identify multiple wallets controlled by the same user by generating a stable identity hash for each real user without obtaining private data such as user names and account information. Users can complete verification through existing accounts such as Coinbase, Instagram, X, and TikTok. The system then returns the verified identity certificate to the smart contract, and the contract automatically implements rules such as collection restrictions, voting restrictions, or quota control. Currently, BaseVerify has been used more than 300,000 times and serves collaborative projects such as BaseApp, Cody, Scratch and Bracket. BaseBuild said that VerifyOnchain will provide fairer airdrops, token issuance, governance voting and user incentives for decentralized applications. Developers can use this technology to limit the number of times a single real user can receive, allocate rewards based on his real identity, or convert real-world signals into on-chain reputation, thereby reducing the impact of robot and multi-wallet manipulation on the fairness of Web3 applications.