How to Fork Bitcoin — Part 2

In this Part 2 (Part 1 here, Part 3 here), we will design our own blockchain based on the Bitcoin Core software you cloned previously.

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Customizations

To customize our blockchain, we are going to make the following changes:

Branding

• Rename the project
• Change address prefixes

Networking

• Message prefix bytes
• RPC and P2P ports
• Seeds

Consensus Rules

• Coin Distribution
• Max supply
• Block rewards
• Subsidy halving interval
• Block size
• Block time
• Activate BIPs
• Checkpoint data
• Genesis block
• Difficulty retargeting interval

Standards

• OP_RETURN data limit

Code

Branding