Origin
Why was SeedMask born?
Having crypto is the easy part. Maintaining it — storing seeds safely, tracking accounts, remembering passphrases and derivation details — is the real struggle.
One seed is hard enough. Multiple seeds, multiple accounts under each, passphrases on top of those — and suddenly you are not only securing coins. You are securing a map: which index, which derivation path, which passphrase belongs where.
Where do you put that map? In a book — someone finds it, or water and time destroy it. On a phone — malware and backups. On a “clean” spare phone — you still do not truly know what runs on it. On an air-gapped laptop writing to USB — the machine can still leave traces you never intended. Invent your own cipher alphabet — easy to forget; write the rules down — easy for someone else to reverse.
The almost-solution
There was a path that looked serious on paper: encrypted keypad USB, forever-offline phone, point-and-shoot camera with MicroSD, standalone CD duplicator, portable CD/DVD player, printer with USB — then split each 24-word seed into quarters across those media. First six words photographed to MicroSD. Next six onto the encrypted stick and burned to disc. Next six from an air-gapped editor onto ordinary USBs. Last six written, scanned, copied, printer wiped. Multiple copies. Multiple hiding places. A ritual to reassemble when restore day came.
It felt complete — until you lived with it. Too many parts. Too many locations. Heat, moisture, and electrostatic discharge waiting to corrupt MicroSD, USB, and discs. SeedQR helps portability, but unprotected (or even “protected”) media still get lost, damaged, or stolen as physical objects.
What was actually needed
- Something that does not silently rot
- Physical and portable
- Easy to recover when life goes wrong
- Highly secure
- Writable — a real backup you can hold
Hiring that into existence costs real money and rare trust. The other path: build it yourself. The idea of how it must work was already clear — even before the code. With AI and many iterations, SeedMask took shape.
The core bargain is simple and strict: a writable backup code plus your own password always derives your seed the same way. No maybe. No lucky guesses. Strong password discipline and careful password storage are still on you — but the recovery path is deterministic.
You can carry the backup code. Leave it in a drawer. Entrust it to someone careful — or even someone you do not fully trust — if the password is strong enough that the code alone is useless. That is not a license to be reckless with photos and printouts. It is a measure of how the design is meant to work: the backup code is portable; the password is the gate.
SeedMask was born because the DIY vault stack was too fragile for real life — and self-custody deserved something physical, recoverable, and honest about where the risk still sits.

Bitcoin
Kaspa