Cryptocurrencies
Blockchain, Bitcoin and the tech reshaping money, from hashing to smart contracts
In the beginning...
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Lessons
Money is a ledger
Practice: Read the ledger
One ledger, many copies
Hash functions
Practice: Same hash or different?
Inside a block
Practice: Find the edited block
Mining
Difficulty
Practice: How many tries?
Practice: Check the miner's work
Keys and wallets
Digital signatures
Practice: Keys and signatures
Transactions and the mempool
Practice: A transaction's journey
Agreeing on one chain
Proof of stake
Practice: Work or stake?
Smart contracts and tokens
Practice: Predict the contract
Keeping your keys safe
Risks and scams
Practice: Spot the scam
Course Complete
Up nextRecommended first Launch Lesson
A chain of blocks
Understand how blockchains work from the hash function up. Explore mining, wallets, consensus mechanisms, smart contracts, and major cryptocurrencies.
