11+ Solidity PRIVACY Web3 Hackathon Projects

A decentralized PoS (Proof Of Sale) mechanism for ERC20 tokens. From Smart Contract to Brick & Mortar Store, accept any ERC20 token as payments. Also, we implement an on-chain approval manager. Approve it Once, Use it Anywhere.

HubShare- A decentralized file share system with decryption to share files between users

Backend system to deploy assets to nft.storage and nft contract to ethereum

creating a blockchain based notary service with final document minted to nfts. Native token reward system.

Risedle is a decentralized Crypto Leveraged ETFs market protocol

3dETH is a decentralized marketplace offering 3d printing services via Ethereum and Smart Contracts

BuyOnChain is a decentralised marketplace that permits people to buy and sell real-world products. It will use an escrow system and oracles to prevent frauds. Unique ERC1155 NFTs which everyone can own to give ratings and reviews about products and services.

A decentralized platform to view live streams by purchasing a NFT

A Dapp providing loans using advanced collateral types such as a Salary NFT. The NFT acts as an anchor for streaming tokens and can be used to secure a loan. After receiving the NFT the loan contract sends the principal to the borrower and manages the streams until settlement.

unit is a new Open Source General Purpose Visual Programming Language, ideal for programming comprehensive Smart Contracts that are easy to build and deploy on Ethereum, directly from the Web.

Marketplace for Car Buyers and Seller Escrow Polygon MATIC scaling of Ethereum