最多获胜黑客松
Manobendra Mandal
Vivek Sahu
simp1e
最多完成项目
Rick
Hendrix Iphonk
Minh Sơn
Simple Lottery Vault is a decentralized lottery contract built on the Flow Testnet. It allows users to join by sending a small, fixed amount of cryptocurrency and randomly selects one winner who recei
The Scavenger Hunt NFT Game allows players to participate in a clue-based adventure managed by an admin. Players who successfully complete all the challenges are marked as winners.
A simple Solidity smart contract that logs every user interaction on the blockchain, storing the caller’s address, the current timestamp, and the block number.
A blockchain-based Time Capsule smart contract that securely locks messages or tokens until a specified future date, ensuring tamper-proof and time-locked access on the Ethereum network.
This DApp is a simple, decentralized Number Guessing Game smart contract deployed on the Flow EVM. Players can guess a secret number on-chain for a chance to win an ETH prize.
This project contains a fully on-chain NFT smart contract written in pure Solidity-style syntax (conceptual reference) — designed for AI-generated art with dynamic metadata, adapted for deployment on
Creating cross-platform NFTs with interoperable attributes
This contract serves as a decentralized personal savings vault for ETH. Each wallet address maintains its own internal balance. Funds can be deposited and withdrawn at any time — all directly on-c
A simple NFT smart contract built on the Flow blockchain that mints completion badges for courses or tasks. Users can earn unique, transferable badges as proof of achievement—without the complexity of
ZKP Verified NFT is a decentralized smart contract that issues NFTs to users who are cryptographically verified using Zero-Knowledge Proofs (ZKPs). The system ensures privacy-preserving identity valid
**without providing any input fields**. Each log entry automatically captures the caller’s address and the exact timestamp when the interaction occurred. This contract is **deployed on the FLOW
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