Counting the 13 projects that made it to the finals of ETHGlobal San Francisco
Involving carbon credits, NFTs, DAO tools, etc.Author: Shiwen, Odaily Planet Daily
ETHGlobal is one of the largest Ethereum communities in the world, hosting hackathons globally, enabling innovative and disruptive projects to be rapidly created with the support of the Ethereum Foundation and other sponsors. At the hackathons, developers can learn new skills, strengthen community building, enrich the Ethereum ecosystem, and push the limits of new technologies.
The ETHGlobal San Francisco event runs from November 4 to November 6, and after three days of intense competition, 13 projects made it to the finals. Below, Odaily Planet Daily provides a brief overview of these 13 projects.
Mundo------Cross-chain Carbon Credit Assets
Mundo allows users on Polygon to purchase carbon credits from any other EVM chain, enabling cross-chain carbon credit assets.
The project uses Hyperlane's bridging technology to transfer digital carbon credit assets across underlying networks like Polygon, Optimism, and Celo. Mundo has a "payment terminal" feature on each chain, with each terminal connected to Chainlink oracles to ensure price stability, and then uses the settlement layer Hyperlane to achieve true cross-chain carbon credit assets. Currently, Mundo has deployed 4 payment terminals on Polygon, Celo, and Optimism.
Additionally, Mundo features a location function, allowing users to see the carbon footprint of a project globally, showcasing the areas their funding supports. For new users, Mundo can also connect wallet addresses or ENS and assess your current on-chain carbon credits.
FuelScape------Combining Classic RuneScape Gameplay with Blockchain
FuelScape leverages the scalability of the Fuel VM execution layer to combine classic RuneScape gameplay with decentralized blockchain game states. Players can link their wallets to their in-game names. Each project represents a different token (using a standard similar to ERC1151 on EVM). The token's chain state is synchronized with the game state.
When players log in, their inventory is retrieved from the chain state, and the wallet is locked for asset transfers in the game. During gameplay, the player's on-chain inventory updates in real-time. When players log out, their wallet is unlocked, and their inventory remains available outside the game.
BB3 - BEEP3R------Text to Mint NFT Project via SMS
BB3 - BEEP3R is an NFT project that allows users to mint by sending a text message. Players can mint their own BEEP3R NFT by sending a text to 205-883-8339 within seconds. BEEP3R NFTs are dynamic NFTs, deployed as upgradable ERC721 smart contracts on the ETH mainnet. They can display all the latest broadcast messages in real-time on Opensea and other NFT marketplaces. Thus, you can see messages from your friends and other BEEP3R owners directly within the NFT.
DAOCensus------Decentralized Hosting for DAO Projects
Currently, most dApps are hosted in a centralized manner, managed by a few administrators. These issues contradict the principles of DAOs and limit their development. DAOCensus has designed an architecture that allows DAOs to decentralize the hosting of dApps. Specifically, anyone can propose updates to a dApp after verifying their identity on Worldcoin, and the proposal will be deployed on IPFS and accessed via an ENS address. DAO members need to vote on the proposal to decide whether to accept the update. If the vote passes, the new version of the project will be marked as "whitelisted" and then deployed by the DAO. Finally, DAO members can use the DAOCensus browser extension to verify whether a project is whitelisted; if not, users accessing the site will receive an alert.
Melo Vault------Semi-anonymous Voting for NFT Collections
This project allows you to conduct semi-anonymous voting for an NFT collection. You can create proposals on-chain using Melo, which will collect signatures off-chain. Then, through ZK proofs, it ensures that the proposer and NFT holders reach a consensus to execute the proposal on-chain. Throughout the process, Melo uses Ethereum storage proofs and ECDSA signatures to verify the identity of NFT holders and the ownership of NFTs, achieving semi-anonymous voting.
Org3------Organization Management Tool Based on ENS Subdomains
This project is a Web3 organization management tool based on ENS subdomains, utilizing ENS smart contracts and subdomain technology, while the Graph protocol is used for quick querying and updating of ENS domains and subdomains; IPFS is used for storing encrypted files, and the lit protocol is used for encrypting and decrypting identities.
It has several advantages:
Intuitive organizational management structure;
Secure wallet connections, administrator, and access control;
Cost-effective, no need to create and distribute tokens and NFTs.
UNIC------Scanning to Verify the Authenticity of NFT Assets
UNIC provides a solution centered around invisible signatures. It is similar to a QR code that can be detected by smartphone cameras. With the UNIC mobile app, users can verify the authenticity of NFTs within seconds by scanning, without needing to track contract addresses, check token information, or verify blockchain history. This method accurately verifies cross-platform or off-chain assets.
ZK Section 9------Bringing AI-Generated Content to Web3
ZK Section 9 creates a machine learning model for on-chain AI-generated content and encodes the artistic generation process of this model into a computation for zk-SNARK provers on-chain. This functionality allows almost any AI algorithm to be converted into zero-knowledge proofs that are easy to integrate with blockchains, thus bringing AI-generated content into Web3.
Cambria------Real-time Simulation of On-chain DeFi and NFT Activities
Cambria can present on-chain real-time activities of DeFi and NFTs in a 1:1 manner in a metaverse format. Cambria mirrors each user of dApps and protocols as characters in a 2D virtual metaverse world. These characters can interact with contract functions and engage in on-chain interactions. Reflected on the front end, people can watch 1:1 on-chain cross-chain activities in-game, and all game NPCs are real people interacting with Web3 in real life.
Peekaboo------Blind NFT Auctions on Ethereum and Optimism
Peekaboo is a blind NFT auction built on Ethereum and Optimism. It allows anyone to reveal all bids only after the auction ends. Only one reveal is needed on-chain, which is the announcement of the winning bid. Compared to existing NFT auctions, Peekaboo's auction has lower amortization costs and a more seamless user experience.
Decentral Couch------Decentralized Airbnb
In Decentral Couch, the identity/gender proof of both parties booking a room is verified using the Zk passport of Polygon ID. Once guests are verified, the "insta-book" feature can be enabled. For example, hosts can allow anyone who can prove they meet specific criteria to book their room on insta-book.
SwallowProject------Building Web3 Quick Tools for Non-engineers
The SwallowProject helps non-engineer users build on-chain data widgets without code.
It aims to solve the following two problems:
Non-engineer users find it difficult to execute complex transactions and query data on-chain.
Tools like The Graph and Dune are great for developers but still challenging for non-engineers.
Thus, SwallowProject has decided to build Web3 quick tools for non-engineer users. The project allows engineers to create shortcuts that can be provided as toolkits for non-engineers. Engineers can leverage their development skills on SwallowProject's open platform to build shortcuts and earn money by selling toolkits.
Snapchain------Infrastructure for Managing Temporary Blockchains
Snapchain is building infrastructure that can create and manage temporary blockchains (like testnets).
On Snapchain, users create new chains by specifying the desired TTL, network name, and currency symbol. The created chain is assigned a chain ID and RPC URL. The chain remains active until the TTL expires or it is manually stopped. If the chain has been used up, users can manually stop the chain and receive a refund for the remaining time. After a chain is manually stopped or reaches its TTL expiration, a mandatory 7-day grace period will be established for security and auditing purposes. Once this grace period is over, the chain will be destroyed.
