Solidity Lottery Smart Contract
Ethereum lottery with fixed entry fee, minimum players, and manager-only winner selection.
SolidityHardhatPayableEvents
Parviz Nasirov · Web3 Portfolio
Web3 Smart Contract Demo Lab
Solidity, Hardhat, Ethereum-style smart contract projects built for learning, testing, and portfolio demonstration.
5
Solidity projects
Hardhat-based
Testing approach
Documented risks
Security focus
Portfolio demos
Purpose
Featured work
Smart contract demo projects
Explore interactive simulations and review the Solidity repositories on GitHub.
Solidity Auction V2
Secure auction contract with reserve pricing and second-price bidding mechanics.
SolidityReentrancy GuardSecond-PriceTests
Solidity Crowdfunding Smart Contract
Governance-style crowdfunding with voting, spending requests, and refunds.
SolidityGovernanceVotingRefunds
ERC20 Token Smart Contract
Manual ERC20-style token with transfers, approvals, and delegated transfers.
ERC20AllowanceMintUnit Tests
Solidity ICO Smart Contract
ICO crowdsale with caps, limits, emergency controls, and token lock logic.
ICOCrowdsaleHard CapEmergency Stop
Why this lab exists
These projects demonstrate smart contract fundamentals: payable flows, auctions, token standards, ICO logic, crowdfunding governance, access control, testing, and security awareness.
Disclaimer
These projects are for learning and portfolio demonstration. Smart contracts in the linked repositories are not audited and should not be used in production without professional security review. Simulated demos here do not connect to wallets or send transactions. Production deployments may require stronger protections for randomness, ICO logic, auctions, and crowdfunding governance.