Advanced

Understanding Blockchain in a bit higher level than the beginner

An opinionated learning path for getting into speed with Blockchain (especially Ethereum).

Pre-requisites

Besides a programming background, this path assumes that the reader is at least a little comfortable with:

• Public key cryptography
  
  • Watch Public Key Cryptography. (Est. time: 7 minutes)
• Digital signatures
  • Read Cryptography Digital Signatures. (Est. time: 10 minutes)
  • Watch What are Digital Signatures and How Do They Work? (Est. time: 3 minutes)
• Cryptographic hashing
  • Watch What is Hashing on the Blockchain? (Est. time: 5 minutes)

Blockchain

1. Watch Blockchain - A visual demo. (Est. time: 18 minutes)

Bitcoin

1. Read How the Bitcoin protocol actually works. (Est. time: 45 minutes)
2. Watch this video (lighter than the previous article but useful to solidify your knowledge). (Est. time: 26 minutes)

Ethereum

Theory

1. Read How does Ethereum work, anyway? (Est. time: 38 minutes)
2. Read this article on smart contracts development. (Est. time: 15 minutes)
3. Read the Truffle Documentation / Hardhat Documentation
4. Read the Web3 Documentation / Ethers Documentation

Practice

1. Learn Ethereum development by making a Zombie Game (Est. time: 8 hs)
2. Read and make and example: Pet shop tutorial
3. Time-locked Wallets: An Introduction to Ethereum Smart Contracts
4. The Ultimate ENS and ĐApp Tutorial
5. Ultimate Introduction to Ethereum Ðapp Development (Est. time: 4 hs)
6. Ethernaut is a Web3/Solidity based wargame for those interested in learning ethereum
7. Smart Contract Engineer is a Solidity/Vyper learning platform for De-Fi users.
8. Capture the Ether is a game in which you hack Ethereum smart contracts to learn about security.
9. Damn Vulnerable DeFi is the wargame to learn offensive security of DeFi smart contracts.

Concepts

0. Crypto vocabulary
1. Blockchain Oracles, Explained (Est. time: 4 minutes)
2. ABI (Est. time: 15 minutes)
3. Keccak256 (Est. time: 15 minutes)
4. Random numbers (Est. time: 5 minutes)
5. Velocity of Tokens (Est. time: 9 minutes)
6. Gas (Est. time: 5 minutes)
7. Weth
8. Decentralized Finance (DeFi):
   • Awesome Decentralized Finance
   • DeFi Prime - Curated directory of DeFi projects.
9. Secureum is an effort towards education & evaluation of Ethereum security.

Under the hood

1. Inside an Ethereum transaction
2. Diving Into the Ethereum VM

Libraries

• dapp-bin - Ethereum repo providing implementations for many common data structures and utilities in Solidity, Serpent and LLL.
• Solidity Collections - Collections of code snippets and utility libraries.
• OpenZeppelin - Framework to build secure smart contracts.

Toolbox

General

eth-cli - CLI tools.,
Remix - Online realtime compiler and runtime.
Metamask - You can use it as an extension in your browser.

Audit

SmartCheck - Online tool for checking smart contracts for vulnerabilities and bad practices. Slither - Sither is a Solidity static analysis framework written in Python 3.