Bitcoin Gold (codename BTCGPU) is a fork of the Bitcoin blockchain that will occur at block height 491407, at roughly 12:00:00 UTC October 25, 2017.
At the predetermined block height, Bitcoin Gold miners will begin creating blocks with a new proof-of-work algorithm, and this will cause a bifurcation of the Bitcoin blockchain. The original Bitcoin blockchain will continue on unaltered, but a new branch of the blockchain will split off from the original chain. The new branch is a distinct blockchain with the same transaction history as Bitcoin up until the fork, but then diverges from it. As a result of this process, a new cryptocurrency will be born.
- Website: http://btcgpu.org
- Slack: invitation
- TODO-list: https://trello.com/b/P1rLw1G9/bitcoin-gold-todos