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Bill Laboon and Radhakrishna Dasari

Developed by the Technical Education team at the Web3 Foundation, this course introduces the fundamental concepts of Blockchain technology and Web3.

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Developed by the Technical Education team at the Web3 Foundation, this course introduces the fundamental concepts of Blockchain technology and Web3.

First, we go over the history and the key terminology of blockchains, Bitcoin, Ethereum and Web3 and then take a deep dive into the technology that powers blockchains. The concepts of cryptography and hashing in the context of blockchains are explored along with hands-on activities that familiarize the learners with digital wallets and blockchain explorers. Next, we explore the concepts of block production and finality, consensus, nodes and networking in blockchain networks. Towards the end of the course, we will explore the blockchain layers and applications centered around networks like Bitcoin, Ethereum and Polkadot. We wrap up the course by exploring the current landscape of Web3 and the future of blockchain technology.

The course is open to learners from all backgrounds. The key objective of this course is to provide a strong foundational knowledge pertaining to Blockchain and Web3.

What you'll learn

  • The history of blockchain technology, the evolution of digital money and the motivation for decentralized systems

  • Concepts of Cryptography and Hashing in the context of blockchains

  • Using Crypto wallets and Blockchain explorers

  • The security implications and limitations of Blockchain networks

  • The key differences between Proof of Work (PoW) and Proof of Stake (PoS)

  • The advantages and disadvantages of the distributed consensus mechanisms

  • The different Blockchain nodes that help sustain a decentralized network

  • Layer 0, Layer 1 and Layer 2 Blockchains and their key applications

  • The technology powering Cryptocurrencies, Decentralized Finance (DeFi), NFTs and DAOs

  • The future prospects of Blockchain technology and Web3

What's inside

Syllabus

Blockchain Basics
Introduction to Blockchain. Blockchain terminology. Blockchain properties. Centralization vs Decentralization. Blockchains in action. A brief history of Money. Properties of Money. How is Money created? Chaumian E-Cash and the Issue of Double Spending.
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Traffic lights

Read about what's good
what should give you pause
and possible dealbreakers
Develops an understanding of the history of digital money and blockchain technology, suitable for beginners
Examines the interoperability and scalability challenges in blockchain technology
Taught by instructors who are recognized for their work in blockchain technology
Offers hands-on labs and interactive materials to enhance understanding
Provides a comprehensive study of blockchain technology and Web3 concepts
Requires no prerequisites, making it accessible to learners from all backgrounds

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Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in Introduction to Blockchain and Web3 with these activities:
Review Cryptography Concepts
Cryptography is a fundamental concept in Blockchain technology. This activity will help you review the basics of cryptography in advance.
Browse courses on Cryptography
Show steps
  • Review cryptography concepts from your previous coursework or existing knowledge
  • Do practice questions on cryptography
  • Make sure you understand the concepts of encryption, decryption, hashing, and digital signatures
Form a Blockchain Study Group
Form a study group to discuss Blockchain concepts, work on projects, and learn from each other.
Show steps
  • Find other students who are interested in forming a study group
  • Decide on a meeting time and place
  • Create a study schedule
  • Meet regularly to discuss Blockchain concepts and work on projects
  • Reflect on your study group experience
Read 'Blockchain Revolution' by Don Tapscott and Alex Tapscott
This book provides a comprehensive overview of the Blockchain technology and its potential impact on various industries.
Show steps
  • Read the book and make notes
  • Summarize the key concepts of the book
  • Discuss the book's implications for the future of business and technology
Four other activities
Expand to see all activities and additional details
Show all seven activities
Volunteer for a Blockchain Nonprofit
Volunteer for a Blockchain nonprofit to gain practical experience and contribute to the Blockchain ecosystem.
Show steps
  • Find a Blockchain nonprofit to volunteer for
  • Contact the nonprofit and inquire about volunteer opportunities
  • Attend volunteer training
  • Perform volunteer duties
  • Reflect on your volunteer experience
Create Blockchains on Test Chains
Create a Blockchain from scratch on one of the popular Blockchains to understand the technical details and internal logic of a Blockchain.
Browse courses on Blockchain
Show steps
  • Choose a Blockchain platform (e.g., Ethereum, Polygon, Solana)
  • Set up a test chain environment
  • Create a new Blockchain project
  • Build the Blockchain's logic
  • Test the Blockchain
Build a Web3 DApp
Build a DApp to understand the practical aspects of developing on the Blockchain.
Browse courses on Web3
Show steps
  • Choose a Web3 framework (e.g., Truffle, Hardhat, Web3.js)
  • Set up a development environment
  • Create a new DApp project
  • Implement the DApp's functionality
  • Deploy the DApp to a Blockchain
Design a New Blockchain-Based Solution
Design a new Blockchain-based solution to a real-world problem to think like a Blockchain architect.
Show steps
  • Identify a problem that can be solved using Blockchain
  • Research existing Blockchain solutions
  • Design the new Blockchain solution
  • Develop a prototype of the solution
  • Evaluate the solution's feasibility

Career center

Learners who complete Introduction to Blockchain and Web3 will develop knowledge and skills that may be useful to these careers:
Blockchain Developer
As a Blockchain Developer, you would be responsible for designing, developing, and maintaining blockchain-based applications and solutions. This course would be highly relevant to your role, as it would provide you with a solid foundation in blockchain technology, including topics such as cryptography, hashing, consensus mechanisms, smart contracts, and more. By taking this course, you would gain the knowledge and skills necessary to succeed in this rapidly growing field.
Cryptocurrency Analyst
As a Cryptocurrency Analyst, you would be responsible for researching and analyzing cryptocurrencies and other digital assets, as well as providing insights and recommendations to clients and investors. This course would be highly valuable to you, as it would provide you with a deep understanding of blockchain technology, cryptocurrencies, and the broader Web3 ecosystem. By taking this course, you would be well-equipped to succeed in this challenging and rewarding field.
Blockchain Engineer
As a Blockchain Engineer, you would be responsible for designing, developing, and implementing blockchain-based solutions. This course would be very useful to you, as it would provide you with a solid foundation in blockchain technology, including topics such as distributed systems, consensus mechanisms, and smart contract development. By taking this course, you would gain the knowledge and skills necessary to succeed in this fast-paced and dynamic field.
Smart Contract Engineer
As a Smart Contract Engineer, you would be responsible for designing, developing, and implementing smart contracts. This course would be very relevant to your role, as it would provide you with a deep understanding of blockchain technology and smart contract development. By taking this course, you would gain the knowledge and skills necessary to succeed in this in-demand and highly specialized field.
Web3 Developer
As a Web3 Developer, you would be responsible for designing and developing decentralized applications that run on blockchain networks. This course would be very relevant to your role, as it would provide you with a deep understanding of blockchain technology and the Web3 ecosystem. By taking this course, you would gain the knowledge and skills necessary to succeed in this emerging and rapidly growing field.
Non-Fungible Token (NFT) Developer
As a Non-Fungible Token (NFT) Developer, you would be responsible for designing and developing NFTs, as well as creating marketplaces and other applications for NFTs. This course would be very relevant to your role, as it would provide you with a deep understanding of blockchain technology and NFTs. By taking this course, you would gain the knowledge and skills necessary to succeed in this emerging and rapidly growing field.
Blockchain Consultant
As a Blockchain Consultant, you would be responsible for advising clients on blockchain technology and helping them to develop and implement blockchain-based solutions. This course would be very useful to you, as it would provide you with a comprehensive understanding of blockchain technology and its applications across various industries. By taking this course, you would be well-equipped to succeed in this high-demand and lucrative field.
Decentralized Finance (DeFi) Analyst
As a Decentralized Finance (DeFi) Analyst, you would be responsible for researching and analyzing DeFi protocols, providing insights and recommendations to clients and investors. This course would be very valuable to you, as it would provide you with a deep understanding of blockchain technology, DeFi protocols, and the broader Web3 ecosystem. By taking this course, you would be well-equipped to succeed in this rapidly growing and highly competitive field.
Blockchain Researcher
As a Blockchain Researcher, you would be responsible for conducting research on blockchain technology and its applications. This course would be very useful to you, as it would provide you with a comprehensive understanding of blockchain technology, its history, and its potential. By taking this course, you would be well-equipped to succeed in this emerging and rapidly growing field.
Blockchain Educator
As a Blockchain Educator, you would be responsible for teaching students about blockchain technology and its applications. This course would be very useful to you, as it would provide you with a deep understanding of blockchain technology, its history, and its potential. By taking this course, you would be well-equipped to develop and deliver engaging and informative lessons on blockchain technology.
Blockchain Project Manager
As a Blockchain Project Manager, you would be responsible for planning, executing, and delivering blockchain projects. This course would be very useful to you, as it would provide you with a comprehensive understanding of blockchain technology, project management principles, and the dynamics of the blockchain industry. By taking this course, you would be well-equipped to lead and manage successful blockchain projects.
Data Scientist
As a Data Scientist, you would be responsible for analyzing data to extract insights and patterns. This course may be useful to you, as it would provide you with a basic understanding of blockchain technology and its applications. By taking this course, you would be better equipped to analyze blockchain data and develop models to predict trends and patterns.
Cryptocurrency Trader
As a Cryptocurrency Trader, you would be responsible for buying and selling cryptocurrencies in order to profit from price fluctuations. This course may be useful to you, as it would provide you with a basic understanding of blockchain technology and cryptocurrencies. By taking this course, you would gain the knowledge and skills necessary to make informed decisions in the fast-paced and volatile cryptocurrency market.
Software Engineer
As a Software Engineer, you would be responsible for designing, developing, and maintaining software applications. This course may be useful to you, as it would provide you with a basic understanding of blockchain technology and its applications. By taking this course, you would be better equipped to develop software applications that interact with blockchain networks.
Cryptocurrency Journalist
As a Cryptocurrency Journalist, you would be responsible for writing and reporting on cryptocurrencies and the blockchain industry. This course may be useful to you, as it would provide you with a basic understanding of blockchain technology and cryptocurrencies. By taking this course, you would be better equipped to write informed and accurate articles about this complex and rapidly evolving field.

Reading list

We've selected nine books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in Introduction to Blockchain and Web3.
Comprehensive introduction to the history, theory, and practice of digital money and cryptocurrencies.
For those who want to specifically work with Ethereum, this guide provides a deep dive into Ethereum's technical concepts.
Provides real-world case studies and an analysis of the cryptocurrency phenomenon and its history.

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