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.

Self-custody means you hold the private keys to your Bitcoin — not an exchange or bank. Learn why self-custody matters, how it works, and how to set it up safely in Europe.

Balanced analysis of Bitcoin's value in 2026. Risk vs reward. How to start small with DCA. Not financial advice—educational only.

Learn how to spend Bitcoin and crypto with a Visa card in Europe. How crypto cards work, fees, tax implications, and which platforms offer the best crypto spending experience.

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