Worst Monero Blockchain Reorg to Date Invalidates 118 Transactions

Monero’s network saw its deepest-ever blockchain reorganization, erasing 118 transactions and roughly 36 minutes of history

Monero experienced an 18-block reorganisation, its largest so far, which invalidated 118 confirmed transactions and rewound about 36 minutes of transaction history.

The cause has been traced to Qubic, an AI-focused layer‑1 blockchain that recently gained control of over half of Monero’s mining power. Qubic uses its Monero mining rewards to buy and burn its own token, following a system called “useful proof-of-work” (uPoW).

Despite the disruption, Monero’s price briefly jumped to a two-month high of around $333, before sliding back to approximately $307.5. Trading activity spiked significantly during this time.

Some in the Monero community are now considering the use of DNS checkpoints—external snapshots of the blockchain—as a way to prevent future reorganizations. However, this approach has sparked debate due to concerns over decentralization.