Monero Experiences Block Reorganization Amid Renewed Qubic Dispute

Monero's blockchain faced its most severe reorganization yet, with 118 transactions invalidated and a 36-minute rollback, raising concerns about network security and mining centralization.

XMR

Summary

On September 14, Monero experienced an 18-block reorganization, its deepest to date, rolling back 36 minutes of transaction history and invalidating 118 confirmed transactions. The reorg was triggered by Qubic, which now controls more than half of Monero's mining power. This attack has sparked discussions on Monero's network reliability and prompted calls for protective measures, including DNS checkpoints. Despite the attack, Monero's price rose to a two-month high before slightly dropping, indicating market resilience.

Terms & Concepts
  • Block Reorganization: A blockchain event in which one chain is replaced by another longer or more valid chain, potentially reversing recent transactions.
  • Monero (XMR): A privacy-focused cryptocurrency that uses advanced cryptography to provide secure, untraceable transactions.
  • 51% Attack: A situation where a single entity controls over half of a blockchain’s mining hashrate, allowing potential chain rewrites or double-spending.