Create a vault

Build your vault.

Your browser makes one secret. Every vault you'll ever have comes from it, each opened by its own one-time hash key. The secret never leaves this page, and it is the only way back in.

Make your secret

32 random bytes from your browser. Already have one? Open your vaults instead.

Press generate to make a secret.

Back it up

Lose the secret and the vault stays closed forever. There is no reset.

I saved my secret somewhere safe and offline. Also remember it in this browser so I don't have to paste it each time. (Only on a device you trust.)

Fund vault #0

A normal SOL transfer from Phantom into your vault address. Phantom only signs this deposit. It can never open the vault.

SOL

VAULT #0

STATUSNO SECRET YET

ADDRESS–

ROOT–

NETWORK…

SIGNATUREWOTS · SHA-256

OPENS WITH1 hash key, 1 time

How it opens later

Go to My vaults, paste your secret, choose an amount and where it goes. Your browser signs with the one-time key and the arkum program checks it on-chain. Whatever stays behind moves into vault #1 with a new key.