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4 Artikel zu „blockchain basics“ · löschen

What Are Layer 1 and Layer 2 Blockchains?

Layer 1 vs layer 2 explained: what base blockchains and scaling networks are, how rollups work, the trade-offs in security and fees, and the risks to watch.

10. Okt. 2026 · 5 Min. Lesezeit

What Is a Smart Contract?

What is a smart contract? Learn how self-executing blockchain programs work, what they power, their limits and risks, and how to check one before you use it.

4. Okt. 2026 · 5 Min. Lesezeit

Proof of Work Explained

Proof of work explained simply: how mining secures blockchains like Bitcoin, why it uses energy, how difficulty adjusts, and its main risks and criticisms.

3. Okt. 2026 · 5 Min. Lesezeit

What Is a Blockchain and How Does It Work?

What is blockchain? A plain-English guide to blocks, hashes, nodes and consensus, with what blockchains are good at, where they fall short and key risks.