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Attempted 51% Attack on Bitcoin Gold Was Thwarted, Developers Say

Bitcoin gold’s developer team announced Friday night that it foiled a 51 percent attack that it had known was coming for over a week.

  • Bitcoin gold alerted exchanges and mining pools of the attack on July 2, and posted a notice to the community on July 10 noting that it was time for “everyone else to upgrade their nodes.”

  • The team only revealed the attempted network takeover to the public after the unknown attacker, which had been mining blocks since July 1, released 1300 blocks late Friday night.

  • Developers had circulated an update that featured a checkpoint at block 640650 on July 2. That checkpoint prevented the attacker’s chain from taking over the honest chain, they said Friday.

  • “The majority of honest pool hashpower continues to mine on the honest chain,” website maintainer CryptoDJ said in the post.

  • According to the cryptocurrency’s official website, there are only 108 bitcoin gold nodes which are in the world. Nearly 30% of them are in Germany. Bitcoin Gold communications director Edward Iskra told CoinDesk that these only represent immediately responsive nodes, and not ones that don’t allow incoming connections.

  • The price seems to have been unaffected by the attempted attack, trading between $9 and $10 since Tuesday, according to Bitfinex

UPDATE (July 11, 2020, 04:23 UTC): This article has been updated with additional information.

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