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Course · L1 Architect
ADVANCED120 min315 XP

Cross-Chain Bridges — From CCIP to Light Clients

Read every meaningful cross-chain trust model side by side. Bridge trilemma + five trust models, light clients as gold standard, production bridges (OP / CCIP / Wormhole / IBC), then build a minimal light-client-verified bridge on Reth.

Source is the primary text

How this course works

This is a hands-on course, not a feed of articles. The lessons build on each other in order, so what you learn from the source carries over to real code.

Start the course →7 lessons · native player
Difficulty
ADVANCED
Workload
120 minutes
Reward
315 XP
Bridge Fundamentals
  1. 01Lesson 1 — What is a bridge? Trust models and the bridge trilemma16 min · 40 XP
  2. 02Lesson 2 — Light clients — the gold-standard verification primitive16 min · 40 XP
Reading Real Bridges
  1. 01Lesson 3 — OP Standard Bridge — the canonical L2 deposit/withdrawal pattern18 min · 45 XP
  2. 02Lesson 4 — Chainlink CCIP — the cross-chain rail Tempo uses18 min · 45 XP
  3. 03Lesson 5 — Wormhole and IBC — multi-chain message protocols14 min · 40 XP
Building a Bridge
  1. 01Lesson 6 — Building a minimal bridge on Reth — light-client-verified messaging22 min · 55 XP
  2. 02Quiz — Cross-Chain BridgesQUIZ · 16 min · 50 XP