Module 1 — Export anatomy
Open sample exports, label fields, and practice refusing to guess when a vendor string is opaque.
Flagship course
Checkpoint Log Mastery
Turn raw hardware wallet events into archives your future self — and your teammate — can defend.
Learning outcomes
- Parse common device export fields without inventing meaning.
- Write checkpoint lines that separate observation from interpretation.
- Detect incomplete restore sequences and document the gap clearly.
- Produce a peer-readable session archive suitable for desk handoff.
Informational pricing
Ledger Bench access to this course is listed at ₩241,000 on our pricing page. No checkout on this site.
Modules
Module 2 — Event vocabulary
Build a personal glossary that maps codes to operator language used in Seoul lab examples.
Module 3 — Restore Sequence Studio
Drill broken and complete restore chains; mark limitations instead of forcing a green check.
Module 4 — Archive composition
Assemble time, actors, artifacts, and open questions into one handoff package.
Module 5 — Teach-back clinic
Explain two checkpoint lines to a peer; rewrite anything that fails the restatement test.
Instructor
Hae-won Park
Curriculum lead · former lab operations facilitator in Seoul
Hae-won designs exercises that punish vague notes and reward precise ones. Learners get written feedback on two archives in the Ledger Bench tier.
FAQ
Do I need a specific hardware wallet brand?
No. Examples are brand-agnostic. You need willingness to work with sample exports we provide if your device cannot export safely in your environment.
Is this financial or trading instruction?
No. See our Not Financial Advice page. We teach operational documentation only.
What is a real limitation of this course?
We cannot certify that your particular firmware build will match our sample event codes. When codes differ, the method still applies, but you must extend the glossary yourself — we do not ship a universal decoder for every vendor revision.
How long do I retain materials?
Self-paced materials remain available for twelve months from enrollment confirmation unless your invoice states otherwise.
Course reviews
“Module 3 caught a restore gap we had been papering over with optimism.”Sora K. · protocol analyst · Busan
Quiet, rigorous, and slightly stubborn about filenames. Worth it.
— Anonymous client in custody operations