Mastering Bitcoin
by Andreas M. Antonopoulos
The technical deep-dive — how Bitcoin actually works under the hood.
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What it's about
The definitive engineering tour of Bitcoin, written for developers and the seriously technically curious. Andreas Antonopoulos walks through keys and addresses, wallets and transactions, the structure of the blockchain, how mining and difficulty work, and how the peer-to-peer network reaches agreement without anyone in charge. It moves from clear explanations to real code and worked examples, so you finish understanding not just what Bitcoin does but how each part is actually implemented. Dense, precise and rewarding — the book people return to as a reference for years.
Why it matters
This is the bridge from being a user to genuinely understanding the machine, and it is the standard technical reference the whole ecosystem cites. Overkill for a casual reader, essential for anyone who wants to build on Bitcoin or verify claims for themselves. Bonus: the author released it open-source, so it is legitimately free to read.
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