Tutorial 03: BlockDAG intuition

Level: Intermediate

Goals

• Explain why low block times increase orphan risk in linear chains.
• Relate BlockDAG to throughput and security at a high level.

Official reading

• BlockDAG
• Client protocol

Sketch exercise

On paper, draw three blocks at the same height connected to the same parents. Label tips, tips selection, and where a wallet might wait for confirmations.

This tutorial is conceptual only — consensus details belong in protocol specs.

Next

Read Network & consensus and BlockDAG overview in this site.