Courses
Blockchain basics
Which chain represents the truth
Odak modu
Blockchain Basics
Welcome to Blockchain Basics
Your journey in this module
Hashing the data
Hashing the data - Demo
Hashing the data - cont
Block of data
Block of data - Demo
Chaining the blocks
Chaining the blocks - Demo
Single chains
Distributed chains
Which chain represents the truth?
Making the longest chain the “true” blockchain
A time-consuming puzzle
Multiple computers working on the puzzle
They solve puzzles faster
They can also cooperate to falsify
The risk?
Solving the puzzle: Mining
Solving the puzzle: Mining - Demo
Why does it work?
How difficult is it to find a nonce?
Your hash rate
Hash rate - Demo
Solving the puzzle: Mining - Cont
Many computers trying to solve the puzzle: Nodes
Many computers trying to solve the puzzle: Nodes - Demo
Recap
You did it!
Once there are multiple versions of a blockchain, how can we say which one is the truth? Each copy of the blockchain that represents a different version may be the true version.
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