Proof of Learn

Blockchain

A digital ledger that records transactions across many computers. Think of it as a shared, unalterable digital notebook where each page (block) is linked to the previous one, forming a chain.

Bitcoin

The first and most famous cryptocurrency. It's digital money that you can send directly to anyone without needing a bank.

Ethereum

A popular blockchain platform that allows developers to build and run applications. It's like a global computer that anyone can use to create decentralized apps.

Altcoin

Any cryptocurrency that isn't Bitcoin. It's like saying "any soda that isn't Coca-Cola."

Cryptocurrency

Digital money that uses cryptography for security. It's like online cash that's protected by complex math problems.