Blockchain Programming Learn everything you always wanted

Blockchain Programming Learn everything you always wanted

Blockchain Programming

Build a blockchain and cryptocurrency from scratch using Python

What you'll learn

Build a crypto coin from scratch using Python

Digitally sign messages and verify signatures

Design and build a tamper-proof blockchain to store any kind of data.

Secure your blockchain with a proof-of-work requirement.

Open sockets to communicate transactions and block with peers

Build a wallet and miner for your crypto coin.

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Description

You'll learn the ins and outs of blockchain-like only a blockchain programmer knows. Using only a few Python libraries, we'll build a cryptocurrency from the ground up. Even if you have very little programming experience we can help you through it!

You'll learn about digital signatures, hashing, and proof-of-work mining. We'll design and build a scheme for decentralized consensus including communicating over TCP/IP sockets. Bring your basic knowledge of Python, and you'll emerge on the other side with a grasp of cryptocurrencies better than 99% of your peers and with a working prototype you can build on. 

You'll make smarter cryptocurrency investment decisions, launch a career in blockchain programming, or just be the smartest crypto-junkie in the room. Clear your weekend, click the enroll button and let's go!

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Course content

9 sections • 83 lectures • 13h 55m total length

Python Basics: Functions, Loops, If Statements and Modules

08:55

Python Basics: Classes

07:21

Python Basics: Inheritance

05:46

Python Basics: Catching Errors with Try/Except

04:13

Signatures for Cryptocurrencies

01:07

Digital Signatures

1 question

Installing modules with pip

01:54

Solution: Part 2

04:03

Strings or Bytes

04:45

Hash functions

03:13

Crytographic hashing

2 questions

Computing hash functions with Python

03:02

Block Chains

01:42

Assignment: Blockchain for general data

08:53

Solution

11:37

Transactions

01:48

Multiple output addresses

00:58

Multi-signature transactions

01:50

Transactions

1 question

Assignment: Transaction class Part 1

09:10

Assignment: Transaction class Part 2

07:04

Solution: Part 1

09:40

Solution: Part 2

09:36

Securing a public transactions ledger

03:19

Assignment 1: Save and restore with pickle

08:15

Assignment 1: Solution

18:13

Assignment 2: The TxBlock class

14:18

Assignment 2: Solution

16:03

Decentralization

01:36

The Dark Side of Decentralization

01:53

Proof-of-Work

05:18

Nonces

06:13

Proof-of-Work Quiz

4 questions

Assignment 1: Mining rewards

09:27

Assignment 1: Solution

13:24

Assignment 2: Nonce requirement

07:42

Additional Python tips and tricks

11:11

Assignment 2: Solution

29:13

Dragons!

01:24

Internet basics

06:08

Client and Server

02:45

Building a server

03:59

Building a client

00:52

Non-blocking server

03:42

Client-server code along

19:28

Pickling data for communication

06:11

Finishing up client-server

08:40

Miner and Wallet

02:37

Building a socket communication utility

07:18

Assignment: Build a Miner

17:10

Solution

26:13

Placing the new block

12:34

Basic Threading

13:41

Assignment 1: Test Miner Using Threads

16:59

Assignment 1: Solution

09:24

Assignment 2: Wallet client and server

17:40

Assignment 2: Solution

23:11

Coding Best Practices

11:09

Assignment 3: Saving and Restoring Keys

07:42

Assignment 3: Solution

14:32

Save and Restore Blocks and Transactions

13:47

Potpourri

03:02

Assignment 1: Load and save states

15:11

Assignment 1: Solution

30:35

Assignment 2: Limit block size

15:51

Assignment 2: Solution

12:29

Assignment 3: Checking account balances

06:12

Assignment 3: Solution

13:25

Assignment 4: Blockchain branching

09:58

Assignment 4: Solution

10:28

Assignment 5: Replay Attacks

17:17

Assignment 5: Solution

01:19:53

Approaches to replay attacks

07:28

Assignment 6: Multiple miners

14:58

Assignment 6: Solution

30:19

Hardness and emission rate

10:56

Hardness quiz

4 questions

Final code base