Web3 Academy Masterclass: Web3 Essentials

After listening to this lecture, you'll be able to describe what makes blockchain a decentralized network, explain how blocks are linked and added, and understand the incentives for nodes to participate.

By the end of this lecture, you'll be able to trace the development of blockchain and digital currencies, including significant milestones like Bitcoin and Ethereum, and comprehend their impact on the Web3 ecosystem.

After listening to this lecture, you'll be able to explain the concepts of hashing and block linking, understand how these create a secure and immutable blockchain, and describe why this technology is trustless and transparent.

In this lecture, you'll learn how blockchain networks use cryptography to maintain security and synchronization among nodes. Discover the roles of public and private keys in ensuring secure transactions.

After listening to this lecture, you'll be able to understand how consensus mechanisms like Proof of Work and Proof of Stake prevent double spending and ensure the integrity and security of blockchain networks.

In this lecture, you'll explore the different types of blockchain nodes, their roles, and how network upgrades through soft and hard forks impact the blockchain.

After this lecture, you'll be able to differentiate between Layer 0, Layer 1, Layer 2, and Layer 3 blockchains, and explain how each layer contributes to the overall functionality and scalability of blockchain networks.

After this lecture, you'll be able to navigate and interpret information on block explorers like Etherscan, check transaction statuses, and understand key details such as transaction hashes, block numbers, and fees.

In this lecture, we delve into the mechanics of smart contracts, their functionality, and their significance in the blockchain ecosystem. Discover how they automate and secure transactions without intermediaries.

After this lecture, you'll understand what a wallet seed phrase is, how it secures your Web3 account, and the benefits of owning a decentralized wallet for accessing and using blockchain applications without relying on centralized platforms.

After this lecture, you'll be able to differentiate between non-custodial, custodial, and contract wallets, understand the concepts of hot and cold wallets, and recognize best practices for securing your digital assets and avoiding common scams.

By the end of this lecture, you'll be able to create and set up your own wallet account. You'll understand the importance of securing your seed phrase and best practices for storing it. You'll be proficient in navigating key wallet features, connecting your wallet to decentralized applications (Dapps), switching between different networks, and differentiating between Ethereum-compatible and non-compatible wallets.

In this lecture, you'll learn to explain what gas fees are and why they are essential for blockchain transactions. You'll understand how gas fees are calculated based on transaction complexity and network activity, and how the native token's volatility affects gas prices. This knowledge will help you navigate and optimize your blockchain transactions with confidence.

In this lecture, you'll learn to differentiate between on-chain and off-chain data and understand the role of oracles in bridging these two worlds. You'll explore how oracles enhance the practical value of blockchain by providing essential off-chain information. You'll also delve into the Oracle Dilemma, examining the potential risks of integrating external data into the blockchain, including data accuracy, freshness, and security concerns.

After this lecture, you'll be able to evaluate the reliability of oracles for your blockchain projects by using reputation platforms and analyzing historical performance. You'll understand how to verify data integrity with authenticity proofs and the importance of fetching data from multiple sources. You'll also recognize the necessity of quick data access for smart contracts and have a foundational understanding of different types of oracles. This will enable you to make informed decisions when integrating oracles into your smart contracts and dApps.

In this lecture, you'll explore the different types of oracles based on centralization, information source, direction of data flow, and design patterns. You'll be able to understand the pros and cons of centralized vs. decentralized oracles, the roles of software, hardware, and human oracles. Additionally, you'll learn about various design patterns and how they apply to different use cases. This knowledge will enable you to effectively integrate and utilize oracles in your blockchain projects.

In this lecture, you'll delve into the historical development of money and its essential roles. You'll discover the shift from barter systems to the use of metallic and paper money, and the eventual rise of fiat currency. You'll also examine how cryptocurrencies like Bitcoin present a decentralized and voluntary alternative to conventional money systems.

In this lecture, you'll dive into the world of Decentralized Finance (DeFi) and how it enables peer-to-peer financial transactions without intermediaries like banks. You'll learn about the role of blockchain technology and smart contracts in facilitating these transactions while maintaining full control over your assets. You'll be made aware of the risks associated with DeFi and the importance of audits. This foundational knowledge will prepare you for more advanced topics in upcoming lessons.

By the end of this lecture, you'll understand the concept of fungible tokens, their interchangeability, and their identical value. You'll explore how cryptocurrencies like Bitcoin and Ether are created and governed. Additionally, you'll learn about stablecoins, their role in maintaining stable value by being pegged to fiat currencies, and the benefits they bring to the DeFi space.

By the end of this lecture, you'll be able to distinguish between centralized exchanges (CEXs) and decentralized exchanges (DEXs). You'll explore the differences in trading models, such as the Central Limit Order Book (CLOB) used by CEXs and the Automated Market Maker (AMM) model used by some DEXs, along with the associated risks and benefits of each.

By the end of this lecture, you'll understand the basics of lending and borrowing digital assets on DeFi platforms without traditional identity checks or credit checks. You'll learn how over-collateralization works to secure loans and ensure lenders get repaid. This knowledge will equip you with the fundamentals of DeFi financial services and their applications in the blockchain ecosystem.

In this lecture, you'll be introduced to Non-Fungible Tokens (NFTs) and their unique characteristics. You'll learn how NFTs function as unique digital barcodes that cannot be copied, duplicated, or interchanged. Additionally, you'll gain insights into the historical context and the significant rise in NFT popularity. This knowledge will prepare you to understand the various exciting use cases of NFTs, which will be covered in the next lesson.

In this lecture, you'll delve into various use cases of Non-Fungible Tokens (NFTs) beyond the basics. You'll discover how NFTs are revolutionizing digital art by allowing artists to sell their work, prove ownership, and earn royalties seamlessly. You'll gain insights into innovative projects like Lens Protocol, which is transforming social media by giving users complete control over their content and monetization. Get ready to uncover the potential of NFTs in numerous fields and understand why they are more than just digital collectibles.

In this lecture, you'll explore the concept of Decentralized Autonomous Organizations (DAOs). You'll learn how DAOs operate on the blockchain using smart contracts, enabling groups to govern resources and coordinate activities without a centralized leader. You'll understand the importance of transparency in DAOs, especially in financial and decision-making processes.

Let's explore different types of DAOs, including those that provide platforms to create and manage new DAOs, those that govern specific protocols, and those focused on collecting and selling NFTs. By the end of this lecture, you'll have a comprehensive understanding of various DAO types and their unique purposes in the Web3 ecosystem.

Ever wondered what are dApps (Decentralized Applications) and they function on blockchain networks? You'll see examples of different types of dApps and understand their real-world applications. This knowledge will set the stage for a deeper dive into dApp architecture in the next lesson.

Let's start with the basics of traditional app architecture and gradually explore how to integrate blockchain technology and smart contracts into the backend. You'll understand the role of providers in accessing the blockchain and the importance of signers for user interactions. You'll discover how to store files and host applications in a decentralized manner using IPFS.

As a cherry on the top here comes a hands-on lecture! You'll learn how to execute a token swap using a decentralized exchange (DEX). Follow along and by the end of this lecture, you'll be equipped to confidently swap tokens on a DEX and understand the intricacies of the process.

Get familiar with essential Web3 slang terms to understand industry conversations and engage with confidence. Become well-versed in the lingo of the Web3 community. #gm #WAGMI #DYOR

Kudos to you for coming to the end... or is it really the end? In this final lecture, you'll recap everything covered in the Web3 Essentials course. Thank you for joining this course, and found it as valuable as Aljoša enjoyed creating it. There's always more to learn. Seeing you in future courses.