Smart Contract Fundamentals Hub
Your complete hub for everything related to EVM basics, tools, Solidity fundamentals, fallback behavior, delegatecall, blockchain concepts, Hardhat essentials, and beginner-friendly explanations for developers building strong foundational depth in Web3.
This page organizes all AOB threads and quizzes that help juniors, early career devs, and career-switchers build deep conceptual clarity before diving into complex interviews or audits.
1. Solidity Basics & Core Blockchain Concepts
Why choose blockchain instead of a traditional database (dev mindset)?
https://artofblockchain.club/discussion/why-choose-blockchain-instead-of-traditional-database
What is blockchain and the career path for technical roles?
How would you explain blockchain to a 5-year-old and a 10-year-old?
👉 https://artofblockchain.club/discussion/howd-you-explain-blockchain-to-a-5-and-a-10-year-old
DeFi learning (beginner direction thread)
👉 https://artofblockchain.club/discussion/defi-learning
These threads help you form simple, interview-friendly explanations — the type hiring managers value.
2. Hardhat, Tooling & Development Fundamentals
What does Hardhat mean in blockchain?
👉 https://artofblockchain.club/discussion/can-anyone-tell-me-what-does-hardhat-mean-in-blockchain
Struggling with Hardhat debugging — missing something beyond console.log?
Hardhat or Foundry first — what helps more for your first dev role?
These threads cover the most fundamental question in every junior’s journey: “Which tool do I learn first?”
3. EVM & Core Mechanics (Beginner to Mid-level)
What is the EVM? (Quiz)
👉 https://artofblockchain.club/quiz/what-is-the-evm
Which hash function does Bitcoin use? (Quiz)
👉 https://artofblockchain.club/quiz/which-hash-function-does-bitcoin-use
What does MEV stand for? (Quiz)
👉 https://artofblockchain.club/quiz/what-does-mev-stand-for-in-ethereum
Which consensus offers fastest finality? (Quiz)
👉 https://artofblockchain.club/quiz/which-consensus-offers-fastest-finality
These build your “base mental model” — critical for both interviews and real development.
4. Solidity Fundamentals: Fallback, Delegatecall & Low-level Behavior
When does a fallback function trigger? (Quiz)
👉 https://artofblockchain.club/quiz/when-does-a-fallback-trigger
What does delegatecall do? (Quiz)
👉 https://artofblockchain.club/quiz/what-does-delegatecall-do
Delegatecall security risk — which Solidity feature is riskiest? (Quiz)
https://artofblockchain.club/quiz/which-solidity-feature-is-riskiest-if-misused-with-delegatecall
These are MUST-KNOW topics for every EVM engineer.
Even seniors still get fallback/delegatecall wrong.
5. Gas, Storage & Basic Optimization Patterns
Which gas pattern reduces redundant SSTOREs? (Quiz)
👉 https://artofblockchain.club/quiz/which-gas-pattern-reduces-redundant-sstores
This is a single thread but foundational for:
understanding EVM storage
knowing why gas matters
identifying wasteful patterns
Perfect for beginners trying to understand “why is Solidity expensive?”
6. Testnet, Mainnet & Environment Fundamentals
Why might a contract work on testnet but fail on mainnet? (Quiz)
👉 https://artofblockchain.club/quiz/why-might-a-contract-work-on-testnet-but-fail-on-mainnet
When blockchain QA tests pass locally but fail on mainnet — what’s happening?
Understanding LIVE chain behavior is a fundamental requirement before touching audits or DeFi.
7. Attack Surface Basics (Beginner-Friendly Security)
What is front-running in DeFi? (Quiz)
👉 https://artofblockchain.club/quiz/what-is-front-running-in-defi
What describes a 51% attack?
👉 https://artofblockchain.club/quiz/q-which-best-describes-a-51-attack-in-blockchain
These threads introduce early-career devs to risk thinking — a critical part of Web3 fundamentals.
8. Scaling Basics: L2, Rollups & Sharding
What is a rollup? (Quiz)
👉 https://artofblockchain.club/quiz/what-is-a-rollup
What is sharding in blockchains?
👉 https://artofblockchain.club/quiz/what-is-sharding-in-blockchains
These help developers understand:
why Ethereum scales
why rollups exist
why L2s matter for contract costs