
Top 5 Interesting Projects from ETHTokyo Hackathon
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Top 5 Interesting Projects from ETHTokyo Hackathon
ETHTokyo Hackathon is a major event in the Ethereum ecosystem, attracting developers and innovators from around the world.
Written by: Surf
Translated by: TechFlow
ETHTokyo Hackathon is a major event within the Ethereum ecosystem, attracting developers and innovators from around the world. Hackathons are excellent venues for spotting emerging trends. Below are brief introductions to five interesting projects discovered at the ETHTokyo Hackathon.

Buidl - Wallet SDK
Buidl is a wallet creation toolkit that enables users to design and customize their own wallets according to the ERC-4337 standard. It provides an intuitive plug-and-play interface for wallet customization.

ERC-4337 allows social account recovery of crypto wallets, biometric transaction authentication, and the ability to store private keys on smartphones.
Users can configure their wallets using various libraries such as Push and AAVE to enable features like notifications. Buidl’s backend generates a smart account. Users can then deploy their customized wallets, which are compatible with any account abstraction wallet such as Argent.

Axel
Axel is an on-chain marketplace that allows developers to list and monetize their SaaS products, providing a fair and transparent platform for both developers and users. Their smart contracts are deployed on Scroll, leveraging zk proofs technology.

XA^2
XA^2 is a chain and account abstraction solution designed to make any dApp cross-chain capable. It uses modular contracts to extend dApp functionality, offering greater flexibility and superior user experience.

Key integrations of XA^2 include:
- Connext;
- 1inch;
- Polygon and Polygon zkEVM;
- Gnosis;
- SAFE.
ZK Governance
Using ZK verification allows governance participants to vote anonymously. It leverages Worldcoin ID's "proof-of-personhood" to verify users' real identities and eliminate bots and bad actors.

Blockhead
Blockhead is a portfolio tracker similar to DeBank, but they add new features and integrations at every hackathon.
At ETHTokyo, they added a Lens profile lookup feature and support for additional chains such as Polygon zkEVM and Scroll.

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