Welcome to Bi5m

Introduction

This project provides a secure way to configure and use Bitcoin Core to create and use a multisig wallet.

A multisig wallet is a secure way to store your Bitcoin where multiple computers must each approve any transaction. This lessens the risk of loss or theft by not relying on a single computer to hold the keys to all your funds.

In a multisig setup, you generate N number of keys and require that M of them be used to authorize transactions. This is called an "M of N" multisig. For example, in a 2 of 3 multisig, you may use any 2 of the 3 total keys to authorize transactions.

Bitcoin Core is the safest software available for using Bitcoin. Bi5m adds only the minimal amount necessary to securely use multisig wallets.

How it Works

The instructions within this documentation will serve to get you started. You will first gather equipment, the most important of which are the computers that run the Bitcoin Core software and the Bi5m software. After gathering these computers and some other supplies, you will:

• Install Linux on each computer.
• Install Bi5m, which will itself download Bitcoin Core for you.
• Use Bi5m to walk you through setting up wallets and each computer and creating backups.

You'll then be able to use Bi5m and Bitcoin Core to to verify your Bitcoin balances, confirm transactions, and spend your Bitcoin.

Get Started

Before proceeding, first read through Before Getting Started.

Once you are ready to dive into using Bi5m, head over to Getting Started.