Bitcoin Gold (BTG) is a decentralized cryptocurrency that emerged as a hard fork of Bitcoin in November 2017. Its core objective is to democratize mining by enabling anyone with a standard Graphics Processing Unit (GPU) to mine BTG—rather than relying on specialized ASIC hardware. This approach is intended to restore decentralization in the mining process and foster a more inclusive cryptocurrency ecosystem. By encouraging broader participation, Bitcoin Gold aims to reduce the influence of large mining farms and uphold the decentralized ethos of crypto.
Bitcoin Gold operates on a blockchain that closely resembles Bitcoin but adopts the Equihash-BTG proof-of-work algorithm, designed to be ASIC-resistant. This allows GPU mining, fostering more widespread miner participation. Like Bitcoin, Bitcoin Gold uses the proof-of-work (PoW) consensus mechanism, where miners validate transactions by solving complex mathematical problems and earn BTG rewards. Additionally, Bitcoin Gold supports second-layer solutions such as the Lightning Network, enabling faster, more scalable payment processing and opening possibilities for smart contract functionality.
Bitcoin Gold was conceived by a team led by Jack Liao in July 2017 and officially launched as a hard fork from Bitcoin on October 24, 2017. The fork aimed to address mining centralization by adopting an ASIC-resistant algorithm. Over time, Bitcoin Gold has implemented various algorithm updates and upgrades to bolster security and functionality. Although the network experienced 51% attacks in 2018 and 2020, it continues to evolve with ongoing development efforts dedicated to improving its technology and market presence.