
Introduction to the course and context for the learning
Journey through the evolution of the internet, from its early days to the future of Web 3.0.
Explore how Merkle trees summarize data with a Merkle root to verify large data sets in blockchains. Learn how it enables efficient, tamper-evident, decentralized transaction verification in Bitcoin and Ethereum.
Explore how Merkle trees secure blockchain data, using hashes to build a Merkle root that ensures integrity and enables efficient transaction verification with Merkle proofs in Bitcoin and Ethereum.
Discover how a decentralized ledger spreads across networked nodes, validated by a consensus mechanism, enabling blockchain technology, reducing intermediaries, boosting efficiency, and strengthening security.
Explore how smart contracts power decentralized applications (DApps) and compare Solidity, Viper, and Rust for Ethereum and other EVM compatible blockchains like Solana and Near.
Explore the basic structure of a solidity contract, starting with pragma to define the compiler version, contract, functions, and variables like string and int, including a public number = 42.
Learn how a blockchain wallet stores crypto, enables transfers, and signs transactions with a private key. See how a public address is viewable and the ledger remains open.
Install MetaMask from the Chrome Web Store, create a secure wallet, and store your secret recovery phrase. Explore networks, view your blockchain address, and manage Ethereum accounts.
Learn to add a manual network in MetaMask, configure RPC URL, chain ID, and symbol (matic), switch to Polygon, use a faucet to fund matic, and deploy a smart contract.
Explore the testnet explorer to view transactions tied to your address, and learn how ledgers record state changes in blocks where transactions are bundled and approved, including gas price.
Explore the fundamentals of blockchain technology, decentralized ledgers, and secure, transparent transactions without intermediaries. Learn how smart contracts automate agreements, enable dapps, and reshape trust, ownership, and industries.
Welcome to Blockchain Fundamentals: A 55-Minute Crash Course for Beginners, your quick and easy gateway to understanding the essential concepts of blockchain technology. This course is designed to give you a clear, simple introduction to blockchain—no complex jargon, just the basics you need to know to get started.
Once you complete the course and finish the quiz, get an exclusive certificate on the chain issued by LevelUp.
In just 75 min, you’ll gain a solid understanding of how blockchain works, the principles of decentralization, and the role of smart contracts in automating transactions. We’ll walk you through the foundational elements of blockchain, giving you the knowledge to confidently explore the possibilities of this revolutionary technology.
Although this course is brief, it’s packed with valuable insights that will help you see how blockchain can enable secure, transparent, and immutable transactions. You’ll leave with a solid grasp of the key concepts and be ready to dive deeper into blockchain and even start interacting with decentralized applications (dApps) and the emerging Web 3.0 space.
Whether you're new to blockchain or just need a quick refresher, this course will give you the knowledge you need to understand blockchain's potential. Join us for this fast-paced crash course and start your journey into the world of blockchain today!
Join the course to learn and explore!!