Identity card
One sheet per device: purchase channel, first-use date, labeling scheme, and where the physical unit usually lives.
Topic guide
Hardware Wallet Usage Ledger
A usage ledger is a living record of what your device did, when, and under which assumptions — without becoming a second place to store secrets.
What belongs on the page
Device nicknames, firmware versions, connection environments, approval destinations, and the outcome you observed. Dates matter more than adjectives. If you cannot recreate the evening from the note, the note is too thin.
What must stay off the page
Seed words, raw private keys, full passphrase strings, and photos of recovery cards. The ledger points to the existence of protections; it does not duplicate them.
Event log
Chronological entries for updates, new accounts, and unusual prompts — written while the screen is still readable.
Exception notes
When something felt off, capture the feeling as a factual prompt (“device asked for PIN twice”) rather than a story.
Turn the primer into practice
The Secure Device Ledger Studio expands each section into drills you can finish beside your device.