Security alert · 30 Jul 2026: a seed-generation flaw in Coldcard devices was disclosed. What to do →

Bitcoin self-custody, step by step

Set up a 2-of-3 bitcoin multisig. Properly.

Short, tested guides. No custody service, no account, nobody else holding your keys. Every page answers one question.

How 2-of-3 works

KEY 1

Brand A

at home

KEY 2

Brand B

second location

KEY 3

Brand C

lost? no problem

any 2 keys sign

Your bitcoin moves one key alone can’t spend

Where do you start?

Start here

New to self-custody

What a seed phrase is, what a hardware wallet does, and whether you need multisig at all.

Read the basics →

Setup guide

Ready for multisig

Ten short steps, from buying the devices to a tested recovery. One page per step.

Go to step 1 →

Advanced

Run your own node

Bitcoin Core over Tor, so your wallet stops asking someone else’s server about your addresses.

Set up a node →

The setup in 10 steps

Print the checklist →

[msg_step_grid parent="setup-guide"]

Choose your gear

Wallet software

The app on your computer that combines the three keys.

Compare wallet software →

Hardware wallets

Three devices, ideally three brands. Buy from the maker only.

Compare hardware wallets →

Seed backups

Metal plates that survive fire and water. One per key.

Compare seed backups →

The multisig checklist

Tick off every step in your browser, or print it and keep it with your backups. Your ticks stay on your device.