OPRR Flash Depth Data

Search Extension

Inventory of the 10 ETHGlobal Lisbon Hackathon Finalist Projects.

2023-05-15 11:59

Read this article in 16 Minutes

On May 14th, the ETHGlobal Lisbon themed hackathon officially came to a close in Portugal.

Original Title: "Inventory of 10 ETHGlobal Lisbon Hackathon Finalist Projects"

Source: ODAILY Star Daily

On May 14th, the ETHGlobal Lisbon themed hackathon officially ended in Portugal.

The final screening of this hackathon selected 10 finalists covering multiple fields including AI, social media, NFT, DeFi, zero-knowledge proof, etc. It is worth mentioning that three of the projects are GPT-like. These projects will share a total of $275,000 in prize money provided by 25 projects including ETHGlobal, Polygon, Worldcoin, Optimism, 1inch, and Uniswap. Next, Odaily Star Daily will introduce these 10 finalists.

Credential Corgi

Homepage for the award: https://ethglobal.com/showcase/credential-corgi-a 7 a 0 r

Credential Corgi is a credential issuance and verification tool based on GPT-4 and zero-knowledge proofs. Its applicable scenarios include: supporting platforms to create credential standards, supporting the issuance of credentials compatible with ZKP, and enabling third parties to interact with credential holders for verification. Specifically,

- Institutions can use the structure standard of Credential Corgi to issue credentials on the platform, combined with the automatic generation ability of GPT-4, without the need to write specific technical specifications.- The issuer can issue credentials compatible with zero-knowledge proofs (ZKP) on institutional platforms, and record them on the chain without revealing any private information.

- Third-party entities can use GPT-4 to verify credentials without the need to write technical specifications.- The credential holder can use ZKP to complete these verification requests without revealing any other information.

Credential Corgi's biggest feature is the ability to use GPT-4 to convert the language description of credentials into structured JSON data, simplifying the work of platforms, issuers, and third-party verifiers.

Dookies

Award homepage: https://ethglobal.com/showcase/dookies-0 g 13 u

Dookies is a personalized and privacy-focused advertising delivery system based on cookies.

Cookie is a simple text file that is stored on the client machine and associated with a specific web document, saving the information of the client's access to this web document. It can help us achieve the function of recording user personal information, and the website can therefore better understand user preferences to push more accurate advertising information.

Dookies uses Sismo Connect to help users generate a cookie based on their group affiliation (such as Aave borrowers, Uniswap contributors, etc.) while protecting their identity privacy.

Dookies is mainly composed of Cookie Dashboard, Dookies Wallet and Advertiser Dashboard. By obtaining cookies from users, more accurate advertisements can be delivered. On the one hand, revenue can be obtained from advertisers, and on the other hand, sponsorship can be provided for users who use Dookies Wallet to chain transactions.

buddy

Award homepage: https://ethglobal.com/showcase/buddy-t 7 gbs

buddy is a social Dapp created based on the Lens protocol. Its feature is a UI design that is almost identical to Tinder. Developers can find like-minded partners here.

Buddy's operation relies on the underlying social protocol Lens, which will obtain the necessary social data through Lens, including using this method to find other Lens users nearby who are also using Buddy.

LocalPro

Award homepage: https://ethglobal.com/showcase/localpro-xckra

LocalPro is mainly used to solve the management difficulties between global organizations and scattered workers around the world. Its provided infrastructure can use blockchain to provide on-chain verification and incentives for offline work in various locations.

With the increasingly close connections between countries, the demand for remote gig workers continues to rise. However, verifying and managing these scattered cross-regional jobs has become a challenge for organizations. LocalPro connects global organizations with independent local workers using identity and performance verification that does not require trust. It solves the potential complexity of on-chain coordination through account abstraction, providing a better user experience. LocalPro also ensures data privacy and compliance using ZK-privacy and PolygonID.

At ETH Lisbon, LocalPro showcased the potential user process from onboarding to settlement. For more details, please click on the video on the homepage.

CryptoBureau

Award homepage: https://ethglobal.com/showcase/cryptobureau-u 1389

CryptoBureau aims to use zero-knowledge proofs to establish a credit scoring system, enabling under-collateralized lending in the DeFi world.

CryptoBureau operates by providing a corresponding credit score based on the proof submitted by the client, which in turn affects the amount of collateral required. If a user maliciously defaults on a loan, other protocol participants will be able to detect and reject additional loans.

Currently, the CryptoBureau suite is deployed on Polygon Mumbai because most ZK technologies are not yet available on other testnets.

Pinky Protocol

Award homepage: https://ethglobal.com/showcase/pinky-protocol-vsos 2

Pinky Protocol is a peer-to-peer, uncollateralized NFT lending protocol. The protocol will use a plugin integrated into the borrower's wallet to restrict the transfer of NFTs, thereby eliminating liquidation risk.

Specifically, the provider of NFTs can list the NFTs they want to lease on Pinky Protocol, set the rental period and fees; the renter can then choose the NFTs they want to rent, pay interest in advance, and borrow them. Pinky Protocol will add a plugin to the renter's wallet to prevent the transfer of the NFT, ensuring the security and ownership of the NFT during the lending period.

Web3-gpt4

Award homepage: https://ethglobal.com/showcase/web3-gpt 4-jkaja

Web3-gpt4 is an intelligent contract management tool built on Chat GPT4, aimed at simplifying the interaction between developers and smart contracts. Users input Solidity code in the chat interface and select a blockchain compatible with EVM, and the tool will handle the rest of the work.

Web3-gpt4 plugin does not require user authentication and can easily access and securely process user data through locally hosted open API. Its capabilities include:

Add contract: Allow users to add new contracts and help track various contracts of interest;

Delete contract: Allows users to remove irrelevant or unnecessary contracts from their list;

Query Contract: Provides a comprehensive overview of the specified smart contract for easy management.

Donation Station

Award homepage: https://ethglobal.com/showcase/donation-station-g 09 ok

Donation Station allows users to donate to Gitcoin on Layer 2 through the donation contract it provides, greatly reducing the required gas costs (the latest round of Gitcoin donations only supports the mainnet, and many donors choose to give up due to high gas fees).

For this hackathon, Donation Station has deployed simplified donation contracts on Linea, Optimism, Polygon zkEVM, Scroll, and Mantle. Users can interact with these contracts by opening the backend script through a browser extension.

ChainGPT

Award homepage: https://ethglobal.com/showcase/chaingpt-and-accountability-for-ai-agents-doquk

ChainGPT is a decentralized and verifiable chat AI based on blockchain technology.

ChainGPT uses Stanford's Alpaca large language model. Unlike ChatGPT, which cannot determine whether the reply content is correct, ChainGPT introduces the concept of "validator nodes" to verify the authenticity of the reply information.

ChainGPT's security comes from running on multiple "validator nodes", which can be home computers that work together to ensure the correctness of each response. If there is a query between two validator nodes, ChainGPT will mediate on the chain, and if there is no difference, it will provide corresponding comparison on the chain.

op-kompressor

Award homepage: https://ethglobal.com/showcase/op-kompressor-1 uboo

op-kompressor is a set of smart contracts that allow relayers to compress calldata.

The function of op-kompressor is to modify the encoding scheme for the running length in order to save gas consumption when processing transactions on Layer 2 solutions such as Optimism by decompressing calldata in Ethereum.