Overview of the 10 projects shortlisted for the ETHGlobal Singapore Hackathon finals

Author: ETHGlobal

Compiled by: Felix, PANews

On September 22, ETHGlobal announced the finalists for the ETHGlobal Singapore Hackathon. As one of the events surrounding TOKEN 2049, this competition featured 310 projects, with 10 projects ultimately standing out, including Clarity, Memora, Fill Me Up, and others, covering areas such as DeFi, wallets, and NFTs. These projects will share a prize pool of $325,000 provided by 31 projects including Worldcoin, Uniswap, and Metamask.

This article provides a detailed overview of these 10 projects.

Clarity

Clarity is a payment gateway designed to address the issue of fake reviews by enabling seamless, verifiable on-chain payments and comments, ensuring transparency and building trust between merchants and users.

Clarity aims to ensure that all purchases and comments are made by verified real users rather than bots by using payment and comment proofs through the Sign Protocol and leveraging WorldID's stealth operations for private identification.

Clarity allows any user to seamlessly create a smart wallet using Google through Dynamic login, without needing to know anything about wallets, transactions, or gas. Clarity also provides incentives through tokens.

Memora

Memora allows users to manage their digital footprint through blockchain-protected NFTs. Users can link various digital accounts (social media, wallet addresses, emails, cloud storage) and set specific conditions for transferring, preserving, or terminating access based on life events such as death, marriage, or job changes.

With AI monitoring agents, the platform can continuously track account activity and trigger automated actions when predefined events occur. Memora allows users to store digital content and assets that can be unlocked by individuals designated by the owner.

Fill Me Up

Fill Me Up allows users to approve funds on a single chain, automatically using these pre-approved funds to top up their balance when they are low on gas on any chain. This ensures that users spend the minimum amount to maintain sufficient gas across all chains, eliminating the hassle of manual topping up.

The project uses an intermediary contract, where users approve funds to this contract. A service monitoring center has set the gas levels for users' funds. When a user's gas is low, the service calls the intermediary contract, which uses the approved limit to transfer some funds to itself. It then swaps and bridges the funds to the chain that is low on funds. Since the contract can only transfer funds to the same user address on another chain, users maintain complete control and security without the risk of losing assets.

Angpao Money

The utility Angpao.money creates "magic" links that allow anyone to effortlessly receive cryptocurrency.

As a beginner-friendly solution, Angpao.money stands out for its ease of use: no additional features, no installation, just a click on the link.

Angpao.money is powered by the technologies of ENS, The Graph, Worldcoin, Reown, and Nouns Dao.

Geist

Geist is a decentralized website builder for DAOs that supports trustless zero-knowledge proof deployments, private previews, and anti-collusion voting, allowing DAOs to collaborate at scale and making the internet more trustless.

It features an ENS-based whitelisted gateway for private previews. Geist hosts website previews encrypted on IPFS behind the gateway site. Users need to access the gateway and sign with their wallet to gain access. With the CCIP protocol, Geist deploys a hybrid resolver capable of resolving on-chain and off-chain data. The resolver decrypts the encrypted hash in the TXT record of the target domain and attaches tokens to the custom gateway for authentication. If the user is whitelisted, the UI gateway redirects the user based on the decrypted IPFS hash response.

Geist votes on website proposals through MINA and also enables trustless deployments through MINA-based ZK proofs, creating proofs for each website build.

Hanseek

Hanseek is a blockchain-based video review platform designed to ensure the authenticity of reviews, restore trust in restaurant recommendations, and reward genuine, trustworthy recommendations. Reviewers are verified using World ID, ensuring that only real people can post reviews. Reviews are stored on the Flow blockchain, ensuring transparency and preventing tampering, while Dynamic supports seamless login, allowing users to easily engage in the real world.

Users can browse short video reviews, book restaurants directly, and trust the recommendations they see. When users visit a restaurant based on their reviews, the creators receive rewards, while restaurants attract more customers through verified, trustworthy feedback.

fheProxies

fheVPN (proxy) leverages the capabilities of Fully Homomorphic Encryption (FHE) to provide secure, anonymous web browsing through a decentralized proxy-as-a-service (PaaS) model. Node operators can set up proxy nodes in different regions and set prices for access. The details of these nodes are encrypted using FHE, ensuring that only authorized customers who pay through the Fhenix network can access them. Even in the case of IP leaks, unauthorized users are blocked by a whitelisting mechanism. This eliminates the need for passwords, as the client's IP is encrypted and shared with the node provider to whitelist it after payment. This creates a secure, anonymous browsing experience powered by blockchain.

fheVPN (proxy) integrates Fully Homomorphic Encryption (FHE) with smart contracts through the Fhenix network to provide secure access control. The backend allows node operators to deploy proxy nodes and use FHE to encrypt their details, ensuring that sensitive data such as IP addresses remains confidential. Clients use the ethers.js library to make on-chain payments, with their IP addresses encrypted through the Fhenix network. This information is only visible to the node providers who whitelist the client for access.

SQUIDL

Squidl is a privacy-focused platform that simplifies and secures payment management. With a private static payment link that can also serve as an ENS address, it allows for easy acceptance of cryptocurrency or credit card payments while ensuring everything is untraceable.

The platform offers seamless integration with various blockchain networks, including Ethereum, BSC, Morph, Linea, and Flow EVM, allowing users to accept a variety of payment methods.

Additionally, credit card payments can be converted to USDC and bridged to BSC, ensuring convenience and privacy. Squidl also has the capability to bridge funds to the Oasis Sapphire network, where transactions are completely untraceable. The flexibility of Squidl extends to asset transfers, including NFTs, soulbound tokens, and liquidity tokens.

Nifi

Nifi is the first Web3-based secure WiFi access portal that uses token and NFT authentication on the blockchain to seamlessly authorize users by verifying the fair use of digital assets.

Nifi integrates blockchain, OpenNDS, and Raspberry Pi to create a decentralized dedicated portal that authenticates users using ERC20, ERC721, and ERC1155 tokens.

Marina Royale

Marina Royale utilizes Uniswap V4 hooks to implement gasless lottery functionality and is optimized for mobile devices via Telegram. Users can create lottery pools with built-in referrals and liquidity incentives.

Key features include:

• Risk-based lottery LP pool allocation
• Multiple winning schemes based on pool size
• Uniswap V4 integrated with curve-based liquidity and built-in referral systems
• Pyth Network for secure, decentralized entropy generation

Unlike lossless lotteries, the project's system offers different expected values for players and liquidity providers. Players have the chance to win substantial jackpots but may lose their principal. Liquidity providers profit from losing lottery tickets and benefit from the built-in referral system, potentially earning more than traditional yield-generating protocols.