The Open Blockchains Book of the Year 2020 Award Goes To...

• **Libra Shrugged: How Facebook Tried to Take Over the Money**
• Awesome Diem (formerly Libra) and Move page »
• **100+ Best of Crypto Quotes - I HODL, you HODL, we HODL! - BREAKING: BITCOIN JUST BROKE $22 000! page »**

• **Best of Crypto Books page »**

Python

• **Build Your Own Blockchain: A Python Tutorial**
• **A Practical Introduction to Blockchain with Python**
• **Let's Make the Tiniest Blockchain Bigger With More Lines of Python (Part 2)**
• (Source) - - The fastest way to learn how Blockchains work is to build one
• (Source)
• (Source)
• **Build Your Own Blockchain: A Python Tutorial**
• (Source)
• **Let's Build the Tiniest Blockchain In Less Than 50 Lines of Python (Part 1)**
• **Learn Blockchains by Building One (in Python)**
• **Part 1: Creating, Storing, Syncing, Displaying, Mining, and Proving Work**
• **Part 2: Syncing Chains From Different Nodes**
• **Part 3: Writing Nodes that Mine and Talk**

Ruby

• **How Does Bitcoin Force Consensus Among Byzantine Generals?**

JavaScript

• **Writing a Tiny Blockchain in JavaScript**
• **Node.js Blockchain Imlementation: BrewChain: Chain+WebSockets+HTTP Server** - - Protecting the tea making ledger from unscrupulous colleagues
• **Node.js Blockchain Imlementation: BrewChain: Chain+WebSockets+HTTP Server** - - Protecting the tea making ledger from unscrupulous colleagues
• **Build your own Blockchain in Javascript/Visualization of Blockchains**

SQL

• **Blockchain by Example in SQL Server**
• **Blockchain by Example in SQL Server**

Talk Notes

• **Blockchain! Blockchain! Blockchain! - Build Your Own Blockchains in Ruby from Zero (Scratch)**
• **Blockchain vs (Hyper) Ledger -- Inside (Hyper) Ledger Lite - Add Transactions One Block at a Time and Balance the Accounts (Books)**
• **Blockchain! Blockchain! Blockchain! - Build Your Own Blockchains in JavaScript from Zero (Scratch)**
• **Blockchain! Blockchain! Blockchain! - Build Your Own Blockchains in Go from Zero (Scratch)**

Rust

• **Part 3: Chains and Checks**
• (Source)
• **Part 1: Blocks and Hashing**
• **Part 2: Mining**

Go

• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Code your own blockchain in less than 200 lines of Go!**
• **Part 2: Networking — Code your own blockchain in less than 200 lines of Go!**
• **Code your own blockchain mining algorithm in Go!**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 2: Proof-of-Work**
• **Part 1: Basic Prototype**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 6: Transactions 2**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 4: Transactions 1**
• **Code your own blockchain in less than 200 lines of Go!**
• **Part 2: Networking — Code your own blockchain in less than 200 lines of Go!**
• **Code your own blockchain mining algorithm in Go!**
• **Part 1: Basic Prototype**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 2: Proof-of-Work**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 7: Network**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 1: Basic Prototype**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**
• (Source)
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**

C#

• **Programming The Blockchain in C#**

Java

• **Creating Your First Blockchain with Java, Part 1** - Tutorial-Part-1)

Kotlin

• **Let's implement a cryptocurrency in Kotlin**
• (Source)

Crystal

• (Source)
• **Write your own blockchain and Proof-of-Work (PoW) algorithm using Crystal** - Scribner, May 2018,

More

• **Build your own Blockchain / Cryptocurrency**

Samples

• Chapter 13 - Segregated Witness - Pay-to-Witness-Pubkey-Hash (p2wpkh) • p2wpkh Transactions • p2sh-p2wpkh • Coding p2wpkh and p2sh-p2wpkh • Pay-to-Witness-Script-Hash (p2wsh) • p2sh-p2wsh • Coding p2wsh and p2sh-p2wsh • Other Improvements • Conclusion_
• **Building Decentralized Apps on the Ethereum Blockchain** - FREE chapter 1 --
• **Attack of the 50 Foot Blockchain: Bitcoin, Blockchain, Ethereum & Smart Contracts** - -
• Bitcoin Energy Consumption Index
• Chapter 8 - Pay-to-Script Hash - Bare Multisig • Coding OP_CHECKMULTISIG • Problems with Bare Multisig • Pay-to-Script-Hash (p2sh) • Coding p2sh • Conclusion ++_
• **Programming Cryptocurrencies and Blockchains in Ruby ( Beta / Rough Draft )**
• **Blockchain for Dummies, IBM Limited Edition** - FREE (Digital Download w/ Email) --
• **Get Rich Quick "Business Blockchain" Bible - The Secrets of Free Easy Money** - FREE --
• **Best of Bitcoin Maximalist - Scammers, Morons, Clowns, Shills & BagHODLers - Inside The New New Crypto Ponzi Economics** - FREE
• **Crypto Facts - Decentralize Payments - Efficient, Low Cost, Fair, Clean - True or False?** - FREE
• **Crypto is the Mother of All Scams and (Now Busted) Bubbles - While Blockchain Is The Most Over-Hyped Technology Ever, No Better than a Spreadsheet/Database** - FREE
• Best of Bitcoin Maximalist - Scammers, Morons, Clowns, Shills & BagHODLers - Inside The New New Crypto Ponzi Economics
• **Programming Bitcoin from Scratch** - FREE (Online Source Version) -- _[Chapter 6 - Script](https://github.com/jimmysong/programmingbitcoin/blob/master/ch06.asciidoc) - How Script Works • Example Operations • Parsing the Script Fields • Combining the Script Fields • Standard Scripts • p2pk • Problems with p2pk • Solving the Problems with p2pkh • Scripts Can Be Arbitrarily Constructed • Conclusion ++_
• **Programming Bitcoin Script Transaction (Crypto) Contracts Step-by-Step ( Beta / Rough Draft )**
• **Mastering Ethereum - Building Contract Services and Decentralized Apps on the Blockchain**
• **IslandCoin White Paper - A Pen and Paper Cash System - How to Run a Blockchain on a Deserted Island**

Open Distributed Databases on Git

• **beer.db** - open public domain beer & brewery datasets
• Gerald Bauer @ Austria Codes
• **football.db** - open public domain football datasets (incl. clubs, national teams, leagues, match schedules, etc.)
• **world.db** - open public domain world (country) datasets

Quotes - Blockchains and Git

• Yaakov
• Yaakov
• Jackson Kelley
• Git Commands
• Nicolás Berger
• Nicolás Berger

Books

• **Learn Enough Git to Be Dangerous** - FREE (Online Version) --
• **Pro Git** - FREE (Online Version) --

Books

• Eduardo Salazar
• cryptokitties.co
• Justin Poirier
• Kayla Williams
• Eduardo Salazar
• Anshul Dhawan
• Anshul Dhawan
• CrypoKittiesMarket
• Kayla Williams

Samples

• **Reflections on the Blockchain** - -
• **Blockchains by analogies and applications: How blockchain compares to Git, Raft, and other technologies.**
• **On the Dangers of a Blockchain Monoculture** - -
• **I Don’t Believe in Blockchain**
• **Minimum Viable Blockchain** - -

Quotes - Blockchains are the next Internets / Tulips

• TulipToken
• TulipToken

Awesome CryptoKitties (and CryptoCopycats)

• **Awesome Blockchain** - - a curated list of the bitcoin blockchain services
• **Blockchain Stuff** - - a curated list of blockchain and general cryptocurrency resources
• **Blockchain Roadmap** - - a step-by-step roadmap / guide to become a blockchain programmer
• **Awesome Blockchain** - - a curated list of blockchain services and exchanges
• **Awesome Blockchain** - - a curated list of awesome projects and services based on blockchain technology
• **Awesome Coins** - - a guide to crypto-currencies and their algos
• **Awesome CryptoKitties (and CryptoCopycats)** - - a curated list about the awesome crypto kitties and copycats
• **Awesome Git** - - a curated list of amazingly awesome Git tools, resources and shiny things
• **Awesome** - - a curated list of awesome lists

JavaScript

• blockchain-lite

Ruby

• blockchain-lite

The Best Crypto Quote "Oracle Saying" of the Year 2020 Award Goes To...

• Merkle tree

Samples

• reddit ruby posting