A blockchain explorer lets you look up any Bitcoin transaction, address, or block on the public ledger. Learn how to use explorers to verify payments, check balances, and understand Bitcoin's transparency.

The Lightning Network is a Layer 2 solution that enables instant, near-free Bitcoin payments. Learn how Lightning works, its benefits, limitations, and how it's used in Europe.

Proof of Work is the consensus mechanism that secures Bitcoin. Learn how PoW works, why it uses energy, how it compares to Proof of Stake, and why Bitcoin uses it.

The Bitcoin halving cuts the mining reward in half every 4 years, reducing Bitcoin's inflation rate. Learn how halvings work, historical price impact, and when the next halving occurs.

Bitcoin mining is the process of using computing power to verify transactions, secure the Bitcoin network, and create new Bitcoin. Learn how mining works, why it matters, and whether it's still profitable in 2026.

Simple guide to cryptocurrency types: payments (BTC), smart contracts (ETH), stablecoins, DeFi tokens, utility tokens. Which ones to buy.

What is blockchain? Blocks, chains, hashes, consensus. Why it's immutable. Public vs private blockchains. Why it matters beyond crypto.

A stablecoin is a cryptocurrency pegged to a fiat currency like USD or EUR. Learn how stablecoins work, the difference between USDC and USDT, MiCA regulation, and how Europeans use them.

Ethereum is a blockchain platform for smart contracts and decentralized applications. Learn how Ethereum works, what ETH is, how it differs from Bitcoin, and its role in crypto.