• Source: Bitcoin Gold

Bitcoin Gold (BTG) is a cryptocurrency which was created as a hard fork of bitcoin.
The stated purpose of the hard fork is to enabling mining on commonly available graphics cards which would democratize and decentralize the mining and distribution of the cryptocurrency. The cryptocurrency has been hit by two 51% hashing attacks, once in 2018 and once in 2020.




History


The project began as a community-driven effort with six co-founders, including lead developer Hang Yin. The stated purpose of the hard fork is to change the proof of work algorithm so that ASICs (Application-Specific Integrated Circuits) which are used to mine bitcoin cannot be used to mine the Bitcoin Gold blockchain in the hopes that enabling mining on commonly available graphics cards will democratize and decentralize the mining and distribution of the cryptocurrency.
Bitcoin Gold hard forked from the bitcoin blockchain on October 24, 2017.
In July 2018, Bitcoin Gold implemented a new mining algorithm which based on one which had previously been developed by Zcash. This new algorithm is called Equihash-BTG. The new algorithm requires more memory than the one that was originally developed by Zcash.




Network attacks


Soon after the launch, the website came under a distributed denial of service attack, and received criticism from Coinbase and Bittrex for being hastily put together, as well as including a developer pre-mine.
In May 2018, Bitcoin Gold was hit by a 51% hashing attack by an unknown actor. This type of attack makes it possible to manipulate the blockchain ledger on which transactions are recorded, and to spend the same digital coins more than once. During the attack, 388,000 BTG (worth approximately US$18 million) was stolen from several cryptocurrency exchanges. Bitcoin Gold was later delisted from Bittrex, after the team refused to help pay some damages.
Bitcoin Gold suffered from 51% attacks again in January 2020. In July 2020, the version 0.17.2 was released as an “emergency update” in order to elude a long attack chain originated a few days before.




References

Kata Kunci Pencarian:

• Bitcoin
• Mata uang kripto
• Binance
• Ripple (protokol pembayaran)
• Bukti kerja
• Mata uang digital
• Nick Szabo
• WhatsApp
• Mata uang virtual
• Dolar Amerika Serikat
• Bitcoin Gold
• Bitcoin
• History of bitcoin
• Silk Road (marketplace)
• Double-spending
• Bitcoin Cash
• List of bitcoin forks
• Litecoin
• Michael J. Saylor
• Bitcoin protocol