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Blockchain Fundamentals

Energy

0 XP / 1500%

Course Content

What is a Blockchain?15m Consensus Mechanisms20m Wallets & Keys15m Transactions & Gas15m Quiz: Blockchain Basics10m

Lesson 3 of 5

Wallets & Keys

Managing your crypto assets securely

15 min

Cryptocurrency wallets store private and public keys for sending and receiving digital assets.

Public Key: Your address — share to receive funds.
Private Key: Your secret — NEVER share it.
Seed Phrase: 12-24 word recovery phrase.

Hot wallets — Online (MetaMask)
Cold wallets — Hardware (Ledger)
Paper wallets — Physical printouts

Consensus Mechanisms Transactions & Gas