Blockchain fundamentals

The basics, explained plainly.

Short guides to how crypto actually moves, written for people who've never needed to know until now.

What a blockchain is, why every transaction stays visible, and why that makes crypto traceable, explained without jargon.

What a wallet really holds, what an address and a transaction hash are, and which details matter if you ever lose crypto.

How investigators follow funds hop by hop, attribute addresses to services, handle mixers and bridges, and document the result as evidence.

Crypto and tracing terms in plain language.

Free course

Ready to go further?

The free foundation course takes these basics further, with exercises in following real transaction patterns.