FABRKNT
GitHub
← All courses
Training Mission · L1 Architect
L1 ArchitectADVANCED120 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.

Course as operating doctrine · Source as primary text

Mission brief

This course is structured as a working assignment, not a content feed. Move through the lessons in order, accumulate the vocabulary, then carry the pattern back into the rest of the stack.

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