🎮 Build & Break a Blockchain
Create your own chain, then try to hack it and see what happens
Your Progress
0 / 5 completed🎮 Build Your Own Chain
Now it's your turn! Create your own blockchain by adding blocks and see how they link together in real-time.
⚡ Chain Builder
✓ Valid Chain
Block #1
Genesis
Data:
Genesis Block
Hash:
Previous Hash:
0000000000
📊Chain Stats
Total Blocks:1
Chain Valid:✓ Yes
Latest Hash:
💡What You're Learning
- • Each block links to the previous
- • Hashes create permanent links
- • Chain grows chronologically
- • New blocks build on the past
🎯 Try These Experiments
Experiment 1: Build a Long Chain
Add 5+ blocks and observe how each new block references the previous one's hash.
Experiment 2: Check Validity
Notice how the "Valid Chain" indicator stays green because all links are intact.
Experiment 3: Reset and Rebuild
Reset your chain and rebuild it with different data. Notice how hashes change but the linking mechanism stays the same.
🚀 Real Blockchain Comparison
Your Chain
- • 1 blocks
- • Instant mining
- • Simple hash function
- • Single node (your browser)
Bitcoin Blockchain
- • 800,000+ blocks
- • ~10 minutes per block
- • SHA-256 hash function
- • 15,000+ nodes worldwide