It matches: now what?

What you just did is the part almost nobody does. It's worth being precise about what is now proven and what isn't.

What is still unproven

Being honest here is worth more than congratulating you.

• That the paper still exists in ten years. Ink, damp, moves, fire. No verification proves that — only the medium and the place do.
• That someone else could use it. You know which wallet it was, whether there's a passphrase and where it lives. Whoever comes after you does not. That's a different problem, and it's the one that takes most of the coins that get lost.
• That the passphrase is the right one, if you have one. A passphrase has no checksum: every passphrase is valid and opens a real wallet. If you checked without it, that piece is still untested.

The five lines

Next to the words, in the same place. None of them can spend a satoshi, and all of them are what's missing when something goes wrong:

1. Which wallet created the seed — make and model
2. What year
3. Whether a passphrase exists, yes or no — and where the other half is, never what it is
4. If multisig, how many keys and where each one lives
5. The address format you just verified: 1…, 3…, bc1q… or bc1p…

That a passphrase exists is not the passphrase. Which wallet made it is not the seed. Whoever finds that note gains nothing; whoever has to recover your wallet without it may not manage at all.

And write today's date

A verified backup ages. You change wallets, add a passphrase, move the box. Putting the date next to it turns "I checked once" into "I checked on 18 August 2026", which is the only version anyone can re-check later.

What we said isn't proven can be tested

Above is what this check does NOT prove: that the paper survives ten years, that someone else could use it, that the passphrase is the right one. Those aren't details — they're dependencies, and each one is a place where a single loss locks you out.

Six questions map them and tell you which to fix first. No secrets, in your browser, in under two minutes.