Curriculum
Build the model, one layer at a time
A compact path through the ideas that make wallets, networks and on-chain markets easier to reason about. Each lesson ends with a self-check.
- Tracks
- 6Ordered from fundamentals to safety.
- Lessons
- 16Short enough to finish in one sitting.
- Total reading
- 96 minRead in order or jump to a topic.
Curriculum map
Six tracks, in a useful order
Start at the beginning if the concepts are new. Otherwise jump directly to the track that fills the gap.
Blockchain Fundamentals
What a blockchain is and why it works
3 lessons · 18 min
Layer 1, Layer 2 & Rollups
How blockchains scale beyond the base layer
5 lessons · 31 min
- 016 min →
Layer 1: The Base Blockchain
What makes a chain a 'Layer 1', and why everything else settles back to it.
- 025 min →
The Blockchain Trilemma
Why decentralization, security, and scalability are hard to have all at once.
- 036 min →
What Is a Layer 2?
How L2s inherit Layer 1 security while processing transactions elsewhere.
- 048 min →
Rollups: Optimistic vs ZK
Two different ways rollups prove their off-chain execution was honest.
- 056 min →
Sidechains, Bridges & Other Paths
Alternatives to rollups, and the risks of moving assets between chains.
Wallets & Keys
Custody, keys, and staying in control
2 lessons · 11 min
DeFi & Tokens
Finance rebuilt from smart contracts
3 lessons · 18 min
NFTs & Ownership
Unique tokens and digital ownership
1 lessons · 6 min
Security & Safety
Avoid the traps that drain wallets
2 lessons · 12 min