Tag
#sepolia
245 repositories
Repos
💻⛓️ A Quick and Easy Way to Bootstrap your own Local Ethereum PoS Testnet. Great for testing consensus ⛓️💻
A crowdfunding platform on blockchain
This repository contains projects implementing both low-level and high-level concepts of Solidity in an incremental learning pattern
A simple ERC20 token and Crowd sale/ICO Smart Contract written in Solidity. The Doha Token meets the ERC20 standard, and all of the code has been fully tested and executed in a live environment. The project is free to use as the user sees fit.
WASM web-application that allows you to mint ERC-721 and ERC-1155 tokens in all major testnets
I have made these steps for people who are struggling connecting their Geth nodes to Beacon Proof of Stake chain Ethereum using Consensus Client. By following these steps you can able to have your personal blockchain node and you don't need any third party provider like Infura.
Managing digital evidences presented in courts with chain of custodies to track evidence with blockchain and IPFS storage and Google technologies
JerryKickStart is Ethereum based (BlockChain) Crowdfunding platform that help entrepreneur to raise funds for projects, ventures, or causes by collecting small contributions from a large number of people.
StakeLiGames is an on-chain staking protocol for LinkedIn Games, enabling decentralized score verification and rewards using smart contracts. Built on Sepolia testnet using PyTeal (Python smart contracts), Solidity, TypeScript and Next.js, with TailWind for the UI & multi-mode compatibility and Chart.js for analytics.
E-signature web app for digitally signing and verifying documents on EVM-based blockchains
SpeedRunEthereum – Token Vendor (Scaffold-ETH 2, ERC-20 + Vendor on Sepolia)
Empower your crypto journey with Ethify — seamlessly send Ethereum while staying informed with real-time market prices for a comprehensive crypto experience.
This project is a dApp faucet that uses Ethers.js, React.js, Hardhat and Solidity to allow users to obtain free tokens through a smart contract on the Sepolia testnet.
A YouTube clone where all the details and videos are decentralized and directly stored in blockchain. Authentication is done using metamask.
A Whitelist Dapp that gives early supporters access to a whitelist for a new NFT collection. Deployed to Sepolia testnet.
A decentralized platform for carbon credit trading using blockchain technology, specifically designed for blue carbon ecosystems like mangroves, seagrass beds, and salt marshes.
This script automates the process of sending ERC-20 tokens or native coin (TEA) to multiple recipients on the Tea Sepolia using the ethers.js library.
Full guide and setup scripts to run your own Ethereum Sepolia RPC node (Geth + Prysm) optimized for Aztec compatibility. Ideal for running a private RPC endpoint for Aztec rollup infrastructure.
This Solidity smart contract implements a lottery game based on the web3.0 blockchain technology. It allows users to participate by purchasing lottery tickets and utilizes Chainlink's VRF for generating random numbers, ensuring the fairness of the game.
ZeroLeak: A military-grade, zero-trust decentralized exam paper distribution system. Powered by Ethereum smart contract timelocks, Shamir’s Secret Sharing (SSS), and client-side encryption to eliminate insider threats and prevent paper leaks.
Polyglot multi-agent AI trading harness: ERC-8004 identity and evidence, Kraken CLI, risk engine
A decentralized Ethereum DApp for combating counterfeiting: Manufacturers issue limited-edition products as immutable blockchain certificates. Securely transfer ownership & verify authenticity instantly via MetaMask. Features: Issue, Transfer, Verify, History views. Built w/ Solidity, Web3.js, Bootstrap.
Example application showcasing the implementation of Particle Network's Smart Wallet-as-a-Service within applications built on Berachain.
StakeSphere is an NFT Staking Application that allows users to connect their wallets, claim an NFT (if they don't have one), stake their NFTs for rewards, and withdraw staked NFTs. The application also provides staking rewards for staked NFTs, incentivizing users to participate actively.
A scaffold repository for quickly building Blinks on EVM blockchains. Contains a starter template to help developers get started with Blink development.
SmartTourismChain is a free and open-source WordPress plugin that enables smart contract-based booking simulations for the tourism sector using Ethereum blockchain technology.
MeowFi is a memecoin landing page featuring a DEX swap interface that allows users to swap $MEOW tokens to Sepolia ETH. Built with cutting-edge web3 technologies, MeowFi provides a seamless and fun trading experience for crypto enthusiasts.
This project develops a decentralized, transparent, automated insurance system using Ethereum blockchain technology.
Blockchain-based systems for registering, managing, and verifying intellectual property rights ownership using decentralized technology.
🔥👻 Send PyUSD privately to any Telegram username. No wallets, no gas fees, no doxxing. Trustless PKP control, encrypted on-chain balances.
🧾 Register and manage your intellectual property securely on the blockchain with this decentralized application, ensuring ownership and access at your fingertips.
This project implements a cross-chain asset transfer system where assets can be locked on one blockchain and minted as a representation on another. The system ensures security, transparency, and proof-of-transfer mechanisms.
The Smart Grid Management System is a comprehensive solution designed to modernize energy grids within urban areas. Traditional energy grids often face challenges such as lack of transparency, inefficiency, and vulnerability to disruptions. The Smart Grid Management System leverages IoT devices, blockchain technology and ML to address these.
A decentralized application that allows users to securely create, manage, and automatically execute wills on the blockchain. It ensures assets are distributed to beneficiaries if the testator becomes inactive beyond a defined timeout period.
My thesis focused on researching and developing a blockchain-based system for delivering online courses and issuing digital certificates. The goal was to ensure transparency, security, and fraud prevention in the certification and verification process.
TODO applicationis a blockchain application which saves your data over the blockchain network and perform task over the blocks
Securely store and verify digital evidence on the blockchain. Built with Next.js, Solidity, and Sepolia Testnet.
Generation 1 of the living collection. Every bid reshapes a cosmic emergence — peak bidder wallet seeds the orbital geometry inherited by all future generations.
Tamper-proof decentralized voting DApp built with Solidity, Hardhat, Ethers.js v6, and Next.js on Ethereum Sepolia testnet.
ETH wallet with Meshtastic off-grid transfers using prepared radio notes and on-chain redeem.
Confidential on-chain payroll built with Zama fhEVM, branchless tax logic, ERC-7984 salary tokens, and verifier-safe payslips.
An NFT-gated Event Management System that allows users to create events and register for them, but only if they own a specific NFT.
This repository contains a comprehensive suite for developing, deploying, and interacting with NFT smart contracts on Ethereum, alongside a React frontend for a seamless user experience. It leverages Hardhat for smart contract development, VRF (Verifiable Random Function) for generating random attributes for NFTs, and IPFS for decentralized storage
This is the DApp for our open source Onchain3D NFT Collection
Swing into the world of Ethereum with SpeedRun Golf, a compelling on-chain adventure powered by Scaffold-ETH 2 🏗️
Simple implementation of Chainlink CCIP to make cross-chain transactions to EOA. From Avalanche Fuji to Sepolia.
Smart Contract for CryptoSupport for supporting and funding purposes
A NestJS application designed for batch processing of blockchain transactions, including sending coins and tokens, and retrieving gas estimation data. Built using Clean Architecture principles for modularity and scalability. Features a well-defined structure with separate layers for application logic, business logic, and infrastructure concerns
This is a decentralized social media platform inspired by Twitter, built using modern Web3 technologies. It allows users to connect their crypto wallets, post tweets, and interact with others in a censorship-resistant and blockchain-backed environment.
Product traceability technology with integrated blockchain technology using Next.js, FastAPI, and Ethereum smart contracts. Built with DevSecOps practices and Docker for easy CI/CD deployment.
Smart contract written in Solidity for managing ETH balances securely on the Ethereum Sepolia testnet.
A React.js-based Ethereum DApp for securely depositing, withdrawing, and checking ETH balances on the Sepolia Testnet, using MetaMask and ethers.js.
A simple gasless transaction framework using Solidity and ECDSA signatures. This project lets users sign messages off-chain, and relayers execute them on-chain by paying the gas.
Mintatix is a full-stack Web 3 ticketing platform that turns event passes into gas-optimised, upgradeable ERC-721A NFTs on Ethereum. A Hardhat-based smart-contract backend enforces resale caps, anti-fraud states and commit-reveal redemption, while a React dApp powered by Wagmi lets users mint, sell and validate tickets in a few clicks.
Decentralized NFT ticketing platform on Ethereum with anti-scalping & built-in royalties
Sepolia Testnet Faucet 💧 - simple Ethereum faucet for the Sepolia testnet. This smart contract allows users to request small amounts of test ETH with a cooldown period to prevent abuse.
GraphQL API for NFT Contract on THE GRAPH PROTOCOL
A decentralized application (dApp) for executing flash loan arbitrage between DEXs.
This project uses Solidity, Truffle and ReactJS to create a decentralized and secure authentication solution. Authentication is achieved by verifying the user's identity on the blockchain and storing the login data securely in a smart contract. In addition, Sepolia Network was used for Testing.
EtherVault3 CLI – a secure Ethereum-only HD wallet for the terminal with AES-256 encryption, multi-account management, airdrops, and full transaction history. Built with TypeScript and ethers.js.
a basic implementation of a voting application using Solidity. It can be used as a starting point for building more complex decentralized voting systems on the Ethereum blockchain.
A decentralized multiplayer game built on the Ethereum blockchain.
A blockchain based donation platform using hardhat and solidity
ERC20 Token written in Solidity deployed in the Sepolia network using the Hardhat development environment. This repository includes the smart contract source code, along with tests and deployment scripts.
⚙️🐂 BlockChain Based AI Financial Advisor : BlockChain Based AI Financial Advisor is a revolutionary decentralized financial technology platform that combines artificial intelligence and blockchain to provide secure, transparent, and personalized stock market analysis and portfolio management
This Raffle Contract helps us to implement the ChainLink VRF and ChainLink Keepers to pick random players as the winners for the lottery
A Multi-Signature (MultiSig) Wallet implementation requiring multiple approvals from authorized signers before executing any transaction.
A decentralized NFT marketplace on the Ethereum blockchain. It allows users to mint, list, buy, and sell unique digital assets as NFTs
An order-based token swap system using Solidity smart contracts. It allows users to deposit various ERC-20 tokens, create swap orders and fulfill orders created by other users.
The Upgradeable Smart Contract Security System is a comprehensive solution designed to address and manage vulnerabilities in upgradeable smart contracts. This project leverages a monorepo approach using NestJS to develop microservices, ensuring a scalable and maintainable architecture.
Portfolio-safe demo/testnet airdrop claim dApp (Next.js + wagmi/viem + Foundry) with Merkle allowlist, Sepolia & Base Sepolia support.
Production-grade DeFi lending protocol — Aave v3 + MakerDAO inspired. 381 tests, 10 verified contracts, credit delegation, flash loans, pUSD stablecoin, governance timelock. Built with Solidity + Next.js 14.
⛓ Decentralized crowdfunding protocol on Ethereum — Solidity, DAO governance, NFT rewards, multi-token donations & full-stack Next.js dApp
Blockchain supply chain product identification system — Solidity smart contract + vanilla HTML/CSS/JS frontend (ethers v6) with MetaMask wallet flows and QR-based public verification
A full-stack blockchain web application built on the Ethereum Sepolia testnet. Created as a portfolio project to explore Web3 development, DeFi mechanics, and real-time cryptocurrency data.