$BTG ‌Bitcoin Gold (BTG) typically refers to Bitcoin Gold, a cryptocurrency forked from Bitcoin at block height 491407 in October 2017. Its core innovation is replacing BTC's SHA-256 with the Equihash algorithm to enable GPU mining and create a more decentralized mining ecosystem. The following are the key details:

• Token Economics: Total supply of 21 million, consistent with Bitcoin; blocks are mined every 10 minutes, with a 4-year halving schedule. The genesis block pre-mined 100,000 coins for development and ecosystem purposes, with a replay protection mechanism.

• Core Features: Equihash is a memory-intensive algorithm resistant to ASIC miners, allowing regular users to mine with GPUs; supports Segregated Witness (SegWit), optimizing transaction efficiency and scalability.

• Security and Risks: Suffered 51% hash rate attacks in 2018 and 2020, resulting in double spending, with potential security and hash rate centralization concerns.

• Market Performance (as of January 3, 2026): Price approximately $8.2, market cap around $144 million, circulating supply of 17.51 million coins, with moderate liquidity, mainly traded on platforms like Bittrex and Bitstamp.