Ethereum, hands on

Position Clarity. Directional education only, not financial or investment advice, and not personalized to your circumstances. Position Clarity is not registered with any Canadian securities regulator. Speak to a licensed professional before acting on anything you learn here. This lesson runs on Ethereum's public Sepolia test network, which uses valueless test ether; nothing here touches real money. The wallet is generated in your browser and its key never leaves the page or reaches our servers. Never enter a real wallet's secret, seed, or private key into any website, including this one. Funding comes from a public third party faucet, which is rationed and occasionally offline; that is a property of the testnet rather than a fault in the lesson. The contract you deploy is a minimal ERC-721 whose source is published in the course repository, and the completion check reads only public chain data (your address and two transaction hashes) from a public Sepolia node. Content last reviewed July 2026. More at the series home and the free interactive tools.