Blockchain,
mastered in a weekend
Learn by clicking, calculating, and simulating.
47 interactive modulesto truly grasp blockchain.
47 modules · Completely free · No sign-up · Unlimited AI tutor
↑ Change just one character and the hash completely changes
Learn by doing, not reading
This isn't a lecture. Here's what you'll actually do.
Compute hashes yourself
Change inputs and watch the hash transform. Understand the core of blockchain security with your own hands.
Hash Function module →Build blocks and chains
Fill blocks with data, mine them, and link them. Try tampering — watch the chain break.
Block + Chain modules →Ask AI when you're stuck
Stuck on a concept? Ask the AI tutor. It explains in context of exactly what you're looking at.
Available in every module →“Computing hashes myself finally made it click. Better than 10 YouTube tutorials.”
“Started on Saturday, finished Sunday. Building the chain yourself is the best part.”
“The MEV sandwich attack simulator blew my mind. Essential knowledge before using DeFi.”
Structured 9-Track Curriculum
Take the diagnostic test, find your level, and start from exactly the right place
47 modules total · 15–25 min average per module