Session 1: Introduction to Smart Contracts

Understanding blockchain fundamentals and exploring transactions with eth.build

Learning Objectives

  • Understand the core concepts of blockchain technology
  • Learn how transactions work on Ethereum
  • Explore the concept of smart contracts
  • Understand gas fees and transaction costs
  • Learn about Ethereum accounts and wallets

1. Blockchain Fundamentals (25 min)

We'll start with the basics of blockchain technology, discussing distributed ledgers, consensus mechanisms, and how blocks are created and validated.

Key Topics:

  • Distributed ledger technology
  • Consensus mechanisms (PoW, PoS)
  • Blockchain structure and hashing
  • Public vs private blockchains

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Resources

Session Materials

Exercises

Exercise 1: Blockchain Visualization

Using eth.build, create a simple blockchain with 3 blocks. Each block should contain at least one transaction.

Hint: Use the "Blockchain" module in eth.build and connect it with transaction modules.

Exercise 2: Transaction Signing

Create a transaction, sign it with a private key, and verify the signature using eth.build.

Hint: Use the "Sign" and "Verify" modules in eth.build.

Exercise 3: Smart Contract Interaction

Using eth.build, create a simple counter smart contract and interact with it by incrementing the counter.

Hint: Use the "Contract" module in eth.build and connect it with function call modules.