Celo

Ticket.sol is a Solidity-based smart contract that allows event organizers to issue, manage, and verify event tickets on the blockchain. Each ticket is represented as a token and recorded immutably, preventing counterfeiting or duplication. The goal is to bring trust and transparency to ticket distribution while giving event-goers verifiable ownership of their tickets.

MyQuiz is a simple, beginner-friendly Solidity smart contract that stores and verifies users' quiz results on-chain. It saves each user's highest score with a timestamp so results are transparent, tamper-proof, and publicly verifiable. This repository is ideal for newcomers learning how to write, deploy, and interact with smart contracts using Remix and MetaMask. Github Project Link : https://github.com/soumik-27/MyQuiz

The On-Chain Quiz project demonstrates how blockchain can be used for decentralized learning and verification. Each question and answer is stored directly on-chain, and users can attempt quizzes knowing that results are tamper-proof and publicly verifiable. This smart contract is deployed on the Celo Sepolia Testnet and is ideal for learning purposes or as a foundation for more advanced quiz or educational dApps. GITHUB LINK : https://github.com/ayushman-c/quiz

LibraryRecords is a beginner-friendly Ethereum smart contract that manages a digital record of books in a library. It allows the library owner to add new books, while users can check out and return books transparently. All actions are permanently stored on the blockchain, ensuring open access to records without centralized control. https://github.com/ahilighosh03-a11y/Smart-Contract

GuessFlow is a decentralized High-Low number guessing game built on the Ethereum blockchain. Players try to predict whether the next randomly generated number will be higher or lower than the previous one. This project demonstrates how to: Write and deploy a basic Solidity smart contract Use pseudo-randomness in smart contracts (for demo purposes) Handle Ether transactions (bets, payouts, and fees) Manage contract ownership and security It’s perfect for Solidity beginners learning how…

This repository contains a simple, production-ready setup for deploying a Solidity smart contract (a basic Counter) to the Celo Sepolia testnet using Hardhat. It’s tailored to be beginner-friendly while keeping a clean structure for real-world use.

The Card Suit Guessing Game is a simple on-chain Ethereum/Celo smart contract designed for beginners to understand how blockchain randomness, events, and Ether transfers work. In this game, you guess a card suit — Clubs, Diamonds, Hearts, or Spades — and if your guess matches the randomly generated suit, you win double your money! 💰 ⚠️ Disclaimer: The randomness used here is not cryptographically secure and should be used for learning purposes only.

WheelFi is a decentralized "Spin & Win" game built on the Ethereum blockchain. Players can spin the wheel by sending ETH to the contract — if luck favors them, they instantly win a reward! The game operates without intermediaries, using smart contract logic to ensure transparency and fairness. WheelFi is designed as a fun, on-chain luck-based game where users can place small bets and potentially win multiples of their wager. This project demonstrates the core principles of decentralized gaming…

Suit Prediction Game is a beginner-friendly Ethereum smart contract that lets players test their luck by predicting a card suit — Hearts, Diamonds, Clubs, or Spades. If the player’s prediction matches the randomly generated suit, they win double their bet! This project is designed to help new Solidity developers understand: How to write and deploy smart contracts How to handle Ether transactions The basics of pseudo-randomness in Solidity https://github.com/swastikamitra05-coder/Card-Guess

FavoriteColorNFT is a fun and simple ERC-721 NFT smart contract that lets users mint a color (in HEX format) as their very own NFT. Each color can only be minted once, ensuring that every hue on-chain is truly unique — just like its owner.

The purpose of this project is to help developers understand how to: - Deploy smart contracts on the Celo network - Handle transactions and receive funds using Solidity - Explore blockchain transparency through Celo Blockscout It’s an excellent starting point for anyone new to Web3, Celo, or smart contract development. **GitHub Link :** https://github.com/webdevbysubha/CertificateVerifier-NIT-web3

BlockNote is a lightweight smart contract designed for people who want to keep personal notes in a decentralized way. Every wallet address has its own set of private notes — meaning your data is stored only under your account and cannot be viewed or edited by others. This project demonstrates how decentralized storage can be used for privacy-oriented personal tools.