Book
Blockchain, Honestly
What a blockchain actually is, how consensus and smart contracts really work, how the money actually gets stolen, and a four-question test for whether it is the right tool — written for someone meeting the subject for the first time.
Written from primary sources: protocol documentation, Cambridge's 2025 mining study, RBI and NPCI publications, ASIC's enforcement action against ASX, and post-incident reports. The job-posting corpus behind this site mentions blockchain zero times in 4,556 descriptions — chapter 1 says so plainly, and this book exists because the subject is worth understanding, not because the hiring evidence supports it.
CHAPTER 1
What a blockchain actually is
Built up from a fingerprint, in terms a database person already knows — and the point at which it stops being something you could write yourself.
CHAPTER 2
Consensus, and what it costs
Who gets to add the next block, why that is expensive on purpose, and the throughput numbers set against something you use every day.
CHAPTER 3
Smart contracts, and writing your first one
A program every machine on the network runs, why that makes it expensive, and the commands to actually deploy one.
CHAPTER 4
How it actually gets stolen
Almost none of it is clever cryptography. The recurring pattern is a stolen key, a manipulated input, or a bridge.
CHAPTER 5
The stack you would actually use
The products a real project reaches for, what each one is for, and which of them are avoidable.
CHAPTER 6
Where it works, where it does not, and how to tell
The public record on enterprise blockchain is unusually clear. Here it is, with a test you can apply in a minute.