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Tutorials

Task-oriented learning exercises connected to canonical topics.

Read a Blockchain Transaction

Learn how to break a blockchain transaction into sender, recipient, value, fee, status, and execution effects.

Review a Transaction Before Signing

Use a repeatable checklist to inspect destination, amount, contract action, permissions, and expected effects before approval.

Secure a Self-Custody Wallet

Build a practical wallet-security routine covering recovery material, device security, phishing resistance, and transaction review.

Inspect a Smart Contract

Learn how to identify contract address, ownership, permissions, upgradeability, events, and common risk surfaces.

Evaluate a DeFi Protocol

Review liquidity, smart-contract dependencies, collateral design, oracle assumptions, governance, and user-facing risk.

Compare Layer-2 Designs

Compare rollups, settlement assumptions, data availability, sequencers, finality, and bridging trade-offs.

Connect an Application to RPC

Understand RPC endpoints, request flow, node providers, reliability, rate limits, and fallback strategies.

Trace a Cross-Chain Message

Follow the conceptual path of a message or asset movement across independent blockchain systems.

Model Predictable Transaction Costs

Compare deterministic or fixed-cost execution with auction-based fee models using an operational planning lens.

Design an Agent Payment Flow

Map how an AI agent can authenticate, hold permissions, initiate payments, and interact with blockchain infrastructure.