BAC-L3-XCHAIN-101Interoperable systems engineering
The cross-chain messaging landscape
One reading grid applied to every model: who verifies what, on whose word, and what happens when something fails.
- Level
- L3 — Infrastructure engineer
- Duration
- 3 h
- Maintainer
- Chief Blockchain Architect
Learning objectives
- 01Decompose any cross-chain mechanism into verification, transport and execution
- 02Place the major models on that grid
- 03Ask the right questions when facing an unfamiliar solution
Guided lab
Classify six cross-chain mechanisms against the grid and compare results as a group.
Independent lab
Apply the grid to a recent solution not covered in class.
Security angle
The decisive question is never "is it fast" but "who can lie, and what happens then".
Assessment
Reasoned classification, assessed on the identification of trust assumptions.