94+ Solidity INFRASTRUCTURE Web3 Hackathon Projects

Hardora Oracle is a decentralized mobile-first hardware oracle for off-chain data computation and data access.

Revolutionize investing with a decentralized tokenized stock exchange platform. Trade custom tokens representing real-world assets like stocks with advanced security, fractional ownership, and 24/7 trading. Open up new opportunities and democratize investing for everyone.

Cryptea is a software that enables businesses to accept Crypto as a payment method, using Payment links and APIs.

SilkPay is an arbitrable payment protocol on L2 that is capable of resolving disputes in various payment scenarios on a low cost and high efficiency basis. We introduce an arbitration mechanism to resolve disputes, and ZK technology to protect user privacy.

Spire is a SDK lets you spin up an app-specific L3 on top of zkEVM rollups such as Polygon zkEVM or Scroll. We're also building a demo L3 app that monitors a set of contracts on the L2, indexes some data, and does some computing over it.

Custom oracle adapter contracts for the Hashi EVM Header Oracle Aggregator

A Multi-Chain decentralized medical App for help the health sector by decentralizing the storage and retrieval of pateint's medical record.

A MEV-aware trading platform with a "brokerage" type of execution. Instead of placing limit orders, makers give "commitment" to execute the trade at a certain price plus their markup. Auction based execution system helps makers filter out toxic flow from uneducated flow

Credence simplifies tracking and verifying identity & reputation on Optimism's AttestationStation for developers and users. Similar to etherscan, it offers a user-friendly interface. It also enables cross-chain attestation, which breaks down barriers between different networks.

Contracts for Difference (CFD) Decentralized Exchange using a novel “Flash Collateral Trillions” borrowing of non-existent funds for efficient liquidations

Key Protocol is a smart contract system that allows the NFT collection owners to assure their users by insuring their ERC721 tokens against Ethereum tokens.

Opclave is an OP Stack improvement with ERC-4337 compatible SC accounts that uses signatures abstracted with AppleEnclave which allows users to create and use non-custodial wallets with touch/face id without having seed phrases