Cryptography & Tokens
Keys, signatures, and token standards (ERC-20/721).
Module Overview
High-level cryptography: public/private keys, signatures, hashing; token standards (ERC-20, ERC-721) and how ownership is represented on-chain. Emphasis on intuitive understanding rather than deep math.
Learning Objectives
- Explain signing and key usage conceptually and why private keys must remain secret.
- Identify token standards and their typical use-cases.
- Inspect a token contract on a block explorer and read simple transfer events.
Lesson-by-Lesson Breakdown
Keys, signatures, and hashing at a conceptual level.
Token types: fungible vs non-fungible and standard behaviors.
Token transfers and event logs interpretation.
Wallet interactions with tokens and security implications.
Hands-on Activities & Deliverables
Activities
Identify and inspect one ERC-20 and one ERC-721 contract on a testnet explorer and summarize differences.
📦 Deliverable
Short comparative report with screenshots.
Required Tools & Readings
Block explorer token pages and plain-English cryptography primers.
Assessment & Rubric
- Understanding of differences40%
- Correct exploration steps40%
- Safety considerations20%
Prerequisites
Module 1.
Parent-Friendly Value
Students learn token concepts used in credentialing and digital ownership systems.