Blockstream App

Easily access a higher level of Bitcoin security. Multisig is back in the Blockstream app.

2of3 with 2FA: you hold two of the three keys. One on your phone, a backup offline on @BlockstreamJade or @Blockstream Metal. Blockstream cosigns when you authorize with a 2FA code.

Watch the next block fill from your phone. Every pending transaction sized by weight, coloured by fee band, updating live.

blockstream.info

The easiest way into multisig is a 2FA Protected account in the @Blockstream app.

Approve sends with your choice of second factor: SMS, email or an authenticator app. No extra hardware to set up.

Keeping your @BlockstreamJade up to date takes seconds in the @Blockstream app.

Connect Jade and you'll be prompted when new firmware is available. Confirm it on Jade and it installs directly.

Sending from a 2FA Protected account looks like any other send. Check the address, amount and fee, then slide to send.

By default two keys sign: one on your device, and one @Blockstream holds that only signs once you approve with your second factor.