Bitcoin is hailed by its supporters as a secure independent money
system, offering the potential to end centralized banking along with
economic issues like inflation and financial exclusion. The key to
bitcoin’s security—and the reason its supporters trust it so much—is
its reliance on an incorruptible digital ledger, known as the
In Exploring Bitcoin, author and Bitcoin expert Kalle Rosenbaum
presents two chapters from his own book, Grokking Bitcoin. In the
first fully-illustrated chapter, you’ll start with a simple
traditional money system and improve on it using Bitcoin technology.
You’ll learn about cryptographic hash functions and digital
signatures. Digital signatures are then used to guard against
imposters by authenticating payments.
In the second chapter, you’ll take a close look at Bitcoin's
blockchain which enables anyone to fully verify the complete
transaction history. The blockchain also enables lightweight Bitcoin
wallets to save bandwidth and storage space. Exercises in each chapter
reinforce all that you’ve learned along the way. By the end of this
free ebook, you’ll understand how some parts of the Bitcoin system
“Cryptographic hash functions and digital signatures,” Chapter 2 from Grokking Bitcoin
“The blockchain,” Chapter 6 from Grokking Bitcoin
Kalle Rosenbaum, founded Popeller, a Bitcoin consultancy, in 2015. He provides expert software development services, advice, and education around Bitcoin, and he’s the author of Manning’s Grokking Bitcoin, from which the chapters in this book were selected.
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