COLDCARD & BlackBox

A guide for Bitcoin home miners on setting up their BlackBox and handling their mining rewards in a privacy-preserving manner before going to cold storage. Mining Bitcoin goes hand in hand with self-custody, the miner provides a Bitcoin address in order to receive the rewards and the mining pool pays out to the provided address. This guide aims to demonstrate setting up a new BlackBox install and a few tools that can be used to handle the mining rewards in a way that helps maintain the anonymity gained from mining and sees that through to cold storage.

This guide covers:

COLDCARD

• Checking the tamper-evident bag
• Setting up a PIN
• Generating a seed phrase with some dice rolls
• Backup recommendations

BlackBox

• Prepare your BlackBox and suggestions for sound treatment
• Miner pressure barrier
• Connecting power and Ethernet

Slush Pool

• Creating a mining account
• Connecting to the pool
• Configuring a payout address

Sparrow Wallet

• Getting started
• Creating a hot wallet
• How to use Whirlpool
• Import COLDCARD Watch-Only wallet
• Configure Whirlpool to deposit directly to COLDCARD
• Air-gapped signing with the COLDCARD