Foundation Path
Stage 3 of 10
On This Page
1. Why Are There Different Types of Blockchains?
2. Public Blockchains
3. Private Blockchains
4. Consortium (Permissioned) Blockchains
5. Hybrid Blockchains
6. Real-World Perspective
7. Common Misunderstanding
Key Takeaways
• There are 4 main types of blockchain networks
• Each type has different trade-offs
• Public blockchains power most of Web3
• Not all blockchains are fully decentralized
Lesson
3.2
Types of Blockchain Networks
What You’ll Learn
• The different types of blockchain networks
• How they differ from each other
• When each type is used
• Why it matters in real-world applications
Why Are There Different Types of Blockchains?
Not all systems need the same level of:
Security
Privacy
Control
Speed
👉 Because of this:
Different types of blockchains were created for different use cases
1. Public Blockchains
Open to everyone
Characteristics:
Anyone can join
Anyone can view transactions
Fully decentralized
Examples:
Bitcoin
Ethereum
Advantages:
High transparency
Strong security
No central control
Limitations:
Slower transactions
Higher fees (sometimes)
👉 Best for:
Cryptocurrencies
DeFi
Open applications
2. Private Blockchains
Controlled by one organization
Characteristics:
Access is restricted
Only selected participants can join
Centralized control
Example Use:
Company internal systems
Enterprise data management
Advantages:
Faster
More efficient
More control
Limitations:
Less decentralized
Requires trust in the organization
👉 Best for:
Businesses
Internal operations
3. Consortium (Permissioned) Blockchains
Controlled by a group of organizations
Characteristics:
Shared control
Limited access
Semi-decentralized
Example Use:
Banks working together
Supply chain systems
Advantages:
More secure than private
More efficient than public
Limitations:
Not fully decentralized
Requires cooperation
👉 Best for:
Industry collaborations
4. Hybrid Blockchains
Combination of public + private
Characteristics:
Some data is public
Some data is private
Example Use:
Healthcare systems
Government systems
Advantages:
Flexible
Balances privacy and transparency
Limitations:
More complex
Harder to design
👉 Best for:
Systems needing both privacy and openness
Simple Comparison
Type | Access | Control | Transparency |
Public | Open | None | High |
Private | Restricted | One entity | Low |
Consortium | Restricted | Group | Medium |
Hybrid | Mixed | Mixed | Mixed |
Key Insight
There is NO “best” blockchain type
It depends on:
Use case
Goals
Trade-offs
Real-World Perspective
Crypto & Web3
Mostly use public blockchains
Businesses
Often use private or consortium blockchains
Advanced systems
Use hybrid models
Common Misunderstanding
❌ “All blockchains are decentralized”
👉 Not true
Only public blockchains are fully decentralized
Others involve control and permission
Why This Matters for You
Understanding types helps you:
Research Analysts → evaluate project design
Market Analysts → understand ecosystems
DeFi Operators → know where you’re interacting
Next Step
👉 Continue to:
“Blockchain Platforms: Bitcoin vs BNB Chain”
Optional Mission
👉 Answer this:
Why would a company choose a private blockchain instead of a public one?
Final Thought
Blockchain is not one-size-fits-all. The type you choose depends on what you’re trying to build.