In this BTC# series of posts I’m going to work my way through Jimmy Song’s new book, Programming Bitcoin. I’ve been programming professionally in C# since 2001. It’s my native tongue and I’ll be translating the book’s Python into C# as I go.

GitHub: https://github.com/darnton/LearningBitcoin

Get the book: O’Reilly / Amazon / GitHub.

BTC#

Start at the Very Beginning

Modular Arithmetic

Big Numbers Are Big

Big Integers in C#

Finite Fields in C#

Elliptic Curves

Elliptic Curve Point Addition

Elliptic Curves over Finite Fields

The Bitcoin Curve

Digital Signatures

Digital Signature Code

Endianness

SEC Serialisation

DER Serialisation

Base 58 Encoded Addresses

Transaction Objects

Script Parsing

The Stack

Stack Machine Operations

Spending with Combined Scripts

Verifying Transactions