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 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 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 3: Persistence and CLI**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **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 1: Basic Prototype**
• **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 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 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 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **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 7: Network**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **Part 3: Persistence and CLI**
• **Part 4: Transactions 1**
• **Part 5: Addresses**
• **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 3: Persistence and CLI**
• **Part 1: Basic Prototype**
• **Part 2: Proof-of-Work**
• **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**
• **Part 5: Addresses**
• **Part 6: Transactions 2**
• **Part 7: Network**

Python

• **Let's Build the Tiniest Blockchain In Less Than 50 Lines of Python (Part 1)**
• **Let's Make the Tiniest Blockchain Bigger With More Lines of Python (Part 2)**
• **Build Your Own Blockchain: A Python Tutorial**
• (Source)
• **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**
• (Source) - - The fastest way to learn how Blockchains work is to build one
• (Source)

Ruby

• **blockchain-lite - Build your own blockchains with crypto hashes; revolutionize the world with blockchains, blockchains, blockchains one block at a time!**
• **merkletree library - Build Your Own Crypto Hash Trees; Grow Your Own Money on Trees**
• **centralbank command line tool (and library) - Print Your Own Money / Cryptocurrency; Run Your Own Federated Central Bank Nodes on the Blockchain Peer-to-Peer over HTTP**
• **A guide to building a blockchain & cryptocurrency from scratch**

Crystal

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

JavaScript

• **Writing a Tiny Blockchain in JavaScript**
• **Node.js Blockchain Imlementation: BrewChain: Chain+WebSockets+HTTP Server** - - Protecting the tea making ledger from unscrupulous colleagues

Java

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

Kotlin

• **Let's implement a cryptocurrency in Kotlin**

Rust

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

Talk Notes

• **Blockchain! Blockchain! Blockchain! - Build Your Own Blockchains in JavaScript from Zero (Scratch)**
• **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 Go from Zero (Scratch)**

Books

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

Quotes - Blockchains and Git

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

Open Distributed Databases on Git

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

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 »**

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

• Merkle tree

Samples

• reddit ruby posting

Samples

• **On the Dangers of a Blockchain Monoculture** - -
• **I Don’t Believe in Blockchain**
• **Minimum Viable Blockchain** - -

Samples

• **Attack of the 50 Foot Blockchain: Bitcoin, Blockchain, Ethereum & Smart Contracts** - -
• **Mastering Bitcoin - Programming the Open Blockchain**
• 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 ++_
• **Building Decentralized Apps on the Ethereum Blockchain** - FREE chapter 1 --
• 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_

Ruby

• blockchain-lite

JavaScript

• blockchain-lite

Books

• Justin Poirier
• Kayla Williams
• Eduardo Salazar
• Anshul Dhawan
• CrypoKittiesMarket

Awesome CryptoKitties (and CryptoCopycats)

• **Blockchain Austria • Blockkette Österreich** - - distributed centralized page for blockchain meetups & orgs in Austria (Central Europe)

Awesome CryptoKitties (and CryptoCopycats)

• **Blockchain Stuff** - - a curated list of blockchain and general cryptocurrency resources

Awesome CryptoKitties (and CryptoCopycats)