Inventory of 13 ETHGlobal Paris Hackathon Final Projects

On July 23, the ETHGlobal Paris theme hackathon held in Paris, France officially ended.

This hackathon finally selected 13 finalist projects, involving zero-knowledge proof, social, cross-chain, DeFi, DAO and other fields. These projects will jointly share the $475,000 bonus provided by ETHGlobal and 39 projects including Metamask, Polygon, Worldcoin, Filecoin, MakerDAO, and 1inch.

Next, let's take everyone to learn about the 13 shortlisted projects.

ZK Microphone

Winning homepage:

Keywords: zero-knowledge proof

ZK Microphone aims to use ZK-SNARKs to create a reliable audio verification service in the era of deepfakes.

Generative AI and deepfake audio have posed a huge threat to the security of our society. To curb the spread of this problem, ZK Microphone has built a full-stack solution - a verification service for audio utilizing ZK-SNARKs.

The basic operating principle of ZK Microphone is to store the secret key for digital signature in a secure enclave, so as to ensure the authenticity of the recording, that is, to confirm that the audio is indeed recorded from the designated hardware microphone; at the same time, ZK Microphone will also use the audio editing software driven by ZK-SNARKs to perform certain transformations on the original audio, so as to ensure the privacy of the original audio content while ensuring the verifiability of the digital signature.

GLSwaps

Winning homepage:

Keywords: DeFi, leverage

GLSwaps aims to empower Uniswap's front-end leveraged trading capabilities.

Specifically, GLSwaps will allow users to conduct various leveraged transactions on GMX through the front end of Uniswap through a browser extension plug-in. Various transaction orders can be submitted on the front end of Uniswap, but the actual transaction execution is completed on GMX. For tokens supported by both Uniswap and dYdX, GLSwaps allows users to go long and short with a leverage of up to 50 times, thereby improving capital utilization efficiency.

TwitterCampaign

Winning homepage:

Keywords: DAO, AI

Twitter Campaigns is an AI-enabled on-chain DAO tool for creating smart contract-based Twitter campaigns, improving the service level of current DAO tools and social proof.

Twitter Campaigns aims to achieve two goals, one is to enable DAO organizations or anyone to promote social media posts through tokenized incentives, and the other is to use FOMO psychology and social proof to get more non-cryptocurrency professionals to participate in these incentives.

TyphoonCashX

Winning homepage:

Keywords: zero-knowledge proof, cross-chain

TyphoonCashX is a privacy cross-chain protocol that will allow anyone to anonymously bridge any ERC-20 native token on any EVM compatible chain.

TyphoonCashX utilizes zero-knowledge proofs to create a privacy layer for cross-chain coin mixers, which expands the vision of the well-known coin mixing app Tornado Cash. From the process point of view, in the deposit stage, TyphoonCashX uses the Sismo protocol to generate off-chain identity certificates for users, that is, their qualifications to receive funds on another chain; in the bridging stage, TyphoonCashX uses the Hyperlane protocol to broadcast messages from the arrival chain to all other chains to prevent various attacks; in the withdrawal stage, the protocol will verify the identity certificate of the relevant address.

Kinetex Light Clients

Winning homepage:

Keywords: cross-chain

Kinetex plans to launch a decentralized cross-chain solution that is different from existing bridging protocols.

Kinetex said the team's proposed approach involves reimagining the way liquidity flows, and it proposes to transfer control to a decentralized marketplace rather than relying on a vulnerable liquidity pool. In this market, users can create transaction (cross-chain) orders, and professional resolvers assume the risk of managing the transaction while charging a certain commission. Kinetex believes that this scheme can lead to a truly decentralized marketplace where resolvers need to compete for the opportunity to serve users.

Kinetex also mentioned that Kinetex Light Clients will solve the problem of high cross-chain gas consumption by enabling batch processing transactions. This solution allows users and resolvers to conduct point-to-point transactions directly without waiting or relying on verifiers, which can significantly optimize gas consumption.

Kinetex's solution is built on Hashi adapters that the team developed especially for various cross-chain messaging protocols such as Chainlink CCIP, Axelar, Hyperlane and Zetachain. This enables Kinetex to support light clients for many networks, including Ethereum, Gnosis, Polygon, Linea, Celo, and many more.

Harps

Winning homepage:

Keywords: zero-knowledge proof, social

Harpos builds a social network that users can choose to join anonymously by utilizing the zero-knowledge proof of the Sismo protocol and the XMTP message protocol.

On this network, users log in via Sismo's SSO and create a ZK proof (attesting to the magnitude of their asset). In addition, users can also generate another ZK proof to prove their social media influence (such as the number of Twitter followers). After joining the network, users can search for other users according to their desired criteria (personal profile, asset class, social media influence), and then only chat privately (powered by XMTP) with those who meet their requirements.

In simple terms, Harpos wants users to be able to connect directly with like-minded people based on criteria of their choice and ensure the authenticity of their contacts.

Bubbles

Winning homepage:

Keywords: zero-knowledge proof, social

Bubbles is a custom voice chat platform for on-chain communities.

Bubbles integrates four important components to create a seamless and secure experience: one is Ethereum, users can log in directly with their Ethereum wallet; the other is Daily.co, which provides a smooth and immersive voice communication environment for Bubbles; the third is the blockchain data indexer Airstack, which enables Bubbles to implement token access control, allowing only users who hold the relevant tokens to enter the chat channel; Membership of a specific data group.

Stake Garden

Winning homepage:

Keywords: DeFi, liquidity staking

Stake Garden is a self-manageable liquid pledged token investment portfolio. Users can decide the ratio of various liquid pledged tokens in the portfolio (for example, choose 50% stETH, 20% rETH, plus some others...), so as to adjust the return and risk status to ensure the safety and controllability of their pledge exposure.

If the user does not want to create a portfolio by himself, Stake Garden will also provide some recommended matching strategies, and the user can directly choose a more preferred strategy.

Cypher Deposit

Winning homepage:

Keywords: zero-knowledge proof, privacy

Cypher Deposit offers a new privacy solution that allows individuals, businesses and high net worth individuals to transfer funds anonymously in a simple and secure manner, protecting their financial and transaction details.

A core feature of the Cypher Deposit solution is the use of ZKBOB technology to keep transaction details private and off-chain. This keeps users' financial activities private and prevents tracking and monitoring from third parties.

Cypher Deposit also hosts a private HOPR container on Filecoin Bacalhau, providing secure access to the Optimism blockchain. This extra layer of security ensures users' transactions are protected, enhancing their financial privacy throughout the withdrawal process.

The front end of Cypher Deposit is also hosted on the IPFS protocol. This is done to provide users with a transparent and trustworthy platform, retaining users' full control over their financial assets.

Bob the Solver

Winning homepage:

Keywords: account abstraction

Bob the Solver is intended to be integrated into wallets and decentralized applications as an "intent"-based transaction infrastructure. The project arose out of an emerging paradigm shift in the field of account abstraction, with a core focus not on the precise transaction flow, but on the ultimate "intent" of the user.

"Intent" represents the desired outcome, while "Transaction" outlines the precise steps required to execute the transaction. For example, if a user intends to purchase an NFT on the Polygon network, the "intent" is very simple, but precise transactions may involve a series of complex and time-consuming tasks such as currency exchange, cross-chain, and purchase, which require in-depth knowledge of various blockchains.

Bob the Solver means that users usually only have "intentions" and no precise "transaction" details. The project aims to simplify the transaction process by accepting user 'intents', automatically formulating appropriate transactions, and executing them on behalf of the user.

VoiceSense

Winning homepage:

Keywords: AI

VoiceSence aims to make Web3 more inclusive by reducing barriers to blockchain transactions.

Specifically, VoiceSence wants to facilitate anyone who finds voice input more convenient than manual text input, such as enabling visually impaired or dyslexic users to use voice as an input mechanism for Web3 activities, or enabling users to record input in their own native language instead of writing in other unfamiliar languages.

VoiceSence works by using an AI model running in the execution layer to convert voice input to text and map it to the fields required to create a transaction, before creating a wallet connection to create and sign the transaction on-chain.

Community-bound

Winning homepage:

Keywords: DAO, governance

Community Bound Tokens (CBT) literally translates to "community bound tokens", which is a potential new token standard.

CBT can only be transferred within the community, and the community can decide their assessment of the value of certain actions, thereby distributing CBT as reputation points. Actions that can affect value assessment are best done on-chain so that CBT will be automatically transferred to distribution targets via smart contracts, but the community can also decide to distribute CBT credits to some real-world activity contributions through certain criteria.

CBT will have many potential use cases within the community, such as as an evaluation standard for community governance weight, and as a credit score for unsecured loans. In a word, it can be used as an innovative method that any community can think of.

On-chain messaging aggregator（S 3 ND）

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Keywords: one-stop entrance

S 3 ND is positioned as an on-chain message aggregator in the Web3 world.

S 3 ND integrates XMTP, Push Protocol and native on-chain messages on its application. This aggregation aims to realize various operations for various protocols, such as sending or receiving various messages.

S 3 ND also integrates Worldcoin and Sismo to add a "trust layer" to the application to avoid the proliferation of spam bots, and users can filter to only view messages from verified users.