Blockchain and Bitcoin Fundamentals
Grasp the core concepts behind distributed ledgers and cryptocurrencies to confidently navigate the world of digital assets.
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About this course
Heard about Blockchain and Bitcoin but not sure where to start? This course demystifies the technology behind the headlines, providing a clear and straightforward introduction for anyone curious about the future of digital transactions.
You will build a solid foundation in blockchain principles, understand how Bitcoin works, and explore the broader applications of this transformative technology. By the end, you'll be able to explain key concepts like decentralization, mining, and smart contracts with clarity.
What you'll learn:
- Understand the fundamental principles of blockchain, including decentralization, immutability, and transparency.
- Learn how Bitcoin transactions are created, verified, and added to the blockchain through the process of mining.
- Grasp the concepts of public and private keys, digital wallets, and essential practices for securing digital assets.
- Explore the differences between public, private, and consortium blockchains and their various use cases.
- Compare different consensus mechanisms, such as Proof-of-Work (PoW) and Proof-of-Stake (PoS).
- Discover the role of smart contracts and their applications in areas like Decentralized Finance (DeFi).
The course begins with essential terminology and the history of blockchain before moving into the mechanics of Bitcoin. You'll then progress to broader concepts like smart contracts and other real-world applications, building your knowledge step-by-step.
This course is designed for absolute beginners. No prior knowledge of cryptography, finance, or computer science is required to get started.
Begin your journey into the world of decentralized technology today.
Course contents
6 modules · 30 lessons · 3h
1
Introduction and Basic Concepts
Understand the origins and theoretical pillars of blockchain.
- Welcome to the Decentralized World
Introduction to the course objectives and the value of the technology.6 min - The History of Blockchain
From the 2008 crisis to the birth of Bitcoin.6 min - The Beginner's Glossary
Definition of essential technical terms to move forward.6 min - What is Decentralization?
Moving from a central system to a distributed network.6 min - Immutability and Transparency
Why data on the blockchain is secure and visible to everyone.6 min
2
Anatomy of the Blockchain
Explore the technical structure and different types of ledgers.
- What is a Block?
The data structure that contains information.6 min - The Chain: How Blocks Connect
The concept of a hash and the cryptographic link between blocks.6 min - Public Blockchains
Networks open to anyone, such as Bitcoin and Ethereum.6 min - Private Blockchains
Closed networks for internal corporate use.6 min - Consortium Blockchains
Hybrid models managed by a group of organizations.6 min
3
How Bitcoin Works
Analyze the lifecycle of a transaction and mining.
- What is Bitcoin?
The first practical application of blockchain as a currency.6 min - Creating a Transaction
What happens when you decide to send Bitcoin.6 min - Transaction Verification
How nodes check the validity of an exchange.6 min - The Mining Process
Solving mathematical puzzles to secure the network.6 min - Adding the Block
How a transaction becomes final on the blockchain.6 min
4
Cryptography and Security
Learn how to manage and protect your digital assets.
- Public and Private Keys
The concept of an address and digital signature.6 min - How Digital Signatures Work
Ensuring authenticity without revealing the secret key.6 min - Digital Wallets
Software and hardware for managing keys.6 min - Hot vs. Cold Storage
Differences between online and offline wallets for security.6 min - Protecting Your Assets
Best practices to avoid scams and data loss.6 min
5
Consensus Mechanisms
Understand how the network reaches agreement without a leader.
- The Consensus Problem
Why it is difficult to reach agreement in a global network.6 min - Proof of Work (PoW)
Consensus based on computing power.6 min - Proof of Stake (PoS)
Consensus based on coin ownership.6 min - Comparison: PoW vs. PoS
Advantages, disadvantages, and environmental impact.6 min - The Evolution of Consensus
A brief look at other emerging mechanisms.6 min
6
Smart Contracts and the Future
Explore advanced applications beyond simple money.
- What are Smart Contracts?
Code that executes agreements automatically.6 min - Ethereum and Beyond
The platform that popularized smart contracts.6 min - Introduction to DeFi
Financial services without banks thanks to blockchain.6 min - Real-World Use Cases
Applications in logistics, electronic voting, and art.6 min - The Future of Decentralization
What to expect in the coming years.6 min
Final project
Project: My Blockchain Manifesto
Create a simplified guide (infographic or text) explaining to a friend how a Bitcoin transaction works and why blockchain could revolutionize a sector of your choice.
What you'll get
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Certificate of completion
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Short & focused
3h of practical content
Certificate of completion
Every course you complete on PickAClass issues a credential like this — original, with its own code, verifiable by URL, and detailed about what was actually demonstrated.
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Certificate of Mastery
This certifies that
Name Surname
has successfully demonstrated mastery of
Blockchain and Bitcoin Fundamentals
Skills demonstrated
✓
Behavioral pattern analysis
Foundational
1.2 hrs
✓
Decision-architecture frameworks
Proficient
1.4 hrs
✓
A/B test design
Proficient
1.7 hrs
✓
Behavioral copywriting
Advanced
1.9 hrs
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PickAClass — Name Surname
Blockchain and Bitcoin Fundamentals
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Performance detail
Coursework summary
Lessons completed
14 / 14
Practice questions
26 / 28
Assignments submitted
4 (avg 4.5 / 5)
Capstone project
Reviewed — 4.6 / 5
Total practice
6.2 hrs
Performance benchmark
Cohort rank
Top 12% of 1,625
Time to completion
11 days (median: 22)
Mastery score
91 / 100
Practice-question score
94%
Skill verification
Verified Skill Path
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Yes — full refund within 14 days, no questions asked.
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Forever. Once you purchase, the course is yours to revisit anytime.
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Yes. On completion you'll receive a certificate you can add to your LinkedIn profile.
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