Self Custody Labs
Worksheets
Paper forms for the parts of self-custody that happen at a desk, away from a computer: the dice grid for a seed you make yourself, a passphrase sheet, a multisig record, a backup test, the checks before a first deposit, and a letter for your heirs. Print one from its page, or download it as a PDF in A4 or US Letter. Nothing is typed into this site: every sheet is filled in by hand.
| Worksheet | What it is for |
|---|---|
| Dice seed worksheetA4 · Letter | A printable grid for making a 24-word BIP39 seed with dice: 256 bit boxes in 24 rows, powers of two for each decimal, and a column for every word. Guide: Generate your own seed phrase with dice. |
| Diceware passphrase worksheetA4 · Letter | A printable sheet for a six-word BIP39 passphrase from the EFF word list: five dice per word, the word itself, its length, and a record of the test. Guide: Make a passphrase with dice. |
| Multisig recordA4 · Letter | A printable record for a 2-of-3 multisig: each key's device, fingerprint, firmware and storage place, and where every copy of the descriptor is kept. Guide: Multisig hardware setup. |
| Backup verificationA4 · Letter | A printable sheet for testing a seed backup: what the wallet should show before the restore, what the restored wallet shows, and when to test again. Guide: Verify your backup. |
| Before you depositA4 · Letter | The checks to finish before moving bitcoin to a new hardware wallet, as a printable list: seed, tested backup, passphrase, address, device, test send. Guide: Before you deposit. |
| Bitcoin inheritance instructionsA4 · Letter | A printable letter for your heirs: what they inherit, what they need, how to reach the funds with Sparrow, who to call, and where each key is kept. Guide: Inheritance planning. |