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Base Build launches Verify Onchain, using on-chain identity verification to solve the airdrop witch attack problem

According to official news, Base Build announced the launch of Base Verify Onchain to address the issue of witch attacks in the blockchain ecosystem. This feature has been launched on the Base Sepolia test network, allowing developers to implement the "one real user, one claim" rule in smart contracts. Base Build stated that traditional airdrop mechanisms are easily manipulated by bulk wallets, and a large number of rewards are often obtained by professional airdrop farmers, while users who genuinely participate in product development can only receive limited benefits.Base Verify Onchain helps project teams identify multiple wallets controlled by the same user by generating a stable identity hash for each real user, without needing to obtain users' names, account information, or other private data. Users can complete verification through existing accounts such as Coinbase, Instagram, X, and TikTok. The system then returns a verified identity credential to the smart contract, which automatically enforces rules such as claim limits, voting restrictions, or quota controls. Currently, Base Verify has been used over 300,000 times and serves collaborative projects such as Base App, Cody, Scratch, and Bracket. Base Build stated that Verify Onchain will provide fairer airdrops, token distributions, governance voting, and user incentive mechanisms for decentralized applications. Developers can use this technology to limit the number of claims per real user, allocate rewards based on real identities, or convert real-world signals into on-chain credibility, thereby reducing the impact of bots and multi-wallet manipulation on the fairness of Web3 applications.

The United Nations Development Programme promotes blockchain infrastructure, with 42 cases covering payments, climate, and digital identity

Cointelegraph Research's latest report shows that the United Nations Development Programme is applying blockchain technology to the construction of public digital infrastructure, focusing on addressing issues of transparency, collaborative efficiency, and trustworthy data sharing in government systems.The report "New Tech, New Partners" outlines 42 practical cases covering areas such as digital payments, financial inclusion, climate funding, data governance, and community investment, among which 7 focus on digital identity and data systems, primarily distributed in developing economies in Africa, Latin America, Asia, and Eastern Europe. The research points out that UNDP adopts a "pilot---validate---scale" approach, collaborating with governments, developers, and local businesses to first implement small-scale projects and then gradually promote them based on actual results. It also emphasizes a "platform-agnostic" architecture to maintain system openness and interoperability. Furthermore, the report highlights the importance of governance and risk control, stating that the application of blockchain in public systems requires accompanying privacy protection, regulatory frameworks, and audit mechanisms to prevent data misuse and smart contract risks. Overall, blockchain is extending from financial scenarios to public governance infrastructure, becoming one of the important technological options for digital transformation in various countries.
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