Crypto Tech Week

Unlocking the core tech behind Bitcoin—one day, one concept, five key points. Simple, smart, and straight to the chain.

Day 4: Digital Signatures and Wallets

How does ownership work without a bank? It’s cryptography, baby.

1. Private Key = Your Password: Keep it secret, keep it safe.

2. Public Key = Your Address: Share it, receive BTC.

3. Digital Signature: Proves it was you who made a transaction.

4. Hot Wallet vs Cold Wallet: Online vs offline crypto storage.

5. Not Anonymous, but Pseudonymous: Wallets are visible, names aren’t.