Monero faces its greatest block reorganization: more than 100 invalidated transactions

By Hannah Pérez

The Monero nodes observed a reorganization of 18 blocks that invalidated around 118 transactions for almost 40 minutes. Responsibility to Qubic was attributed, which monopolizes more than 50% of Monero’s hashrate.

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• The Monero Blockchain network faced 18 blocks reorganization.
• The largest Reorg event in Monero: invalidated 118 transactions for 40 minutes.
• Qubic, who monopolizes more than 50% of the hashrate, was indicated as the person responsible.

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The network Blockchain of Moneroa cryptocurrency project known for its approach to privacy, suffered an unusual incident on Sunday, when a reorganization of 18 blocks temporarily erased more than 100 confirmed transactions.

To understand what happened, it is worth remembering that a Blockchain It is like a public and unalterable digital accounting book, where transactions are grouped into “blocks” that are chained one after another.

A block reorganization, or “reorg”, happens when two competitive versions of this chain are generated at the same time – for example, due to miners working in parallel – and the network chooses the longest chain or with greater accumulated work as the valid. This can cause previous blocks to be discarded, invalidating the transactions in them, similar to reverse pages in a book.

In this case, the reorganization began in block 3,499,659 and lasted approximately 36 to 40 minutes, affecting between 117 and 118 transactions that had already been confirmed. The event marked the greatest reorg in the history of Monero.

As a result, the history of transactions was “rewind” in that period, which could have exposed some users to risks such as double expenses – that is, spending the same amount twice if sufficient confirmations are not expected. This event marked the greatest reorg in the history of Monerohas generated concern among community users.

Qubic would be behind the attack on Monero

Various observers attributed the incident to Qubica project Blockchain focused on artificial intelligence that has accumulated more than 50% of the mining power (or “hashrate”) of Monero In the last month.

Qubic Use a model called “useful work” (UPOW), where mining rewards of Monero They become Stablecoins As USDT to buy and destroy QBIC native tokens, which increases its value.

Although its responsibility has not been officially confirmed, the community speculates that Qubic I could have undermined blocks in isolation – a tactic known as “Selfish mining“ – To then release a longer chain and force reorganization.

THE PODCASTER OF THE COMMUNITY OF Moneroknown as Xenu, described the event as “The greatest reorganization in the history of Monero“ and suggested that Qubic He used a variant of selfish mining. However, Sergey Vivancheglo, founder of Qubicrejected these accusations on social networks, qualifying them unfounded.

Experts alert about double expense risks

The Monero Research Laban unofficial group dedicated to investigating the network, warned that the incident exceeded the standard threshold of 10 confirmations that are usually used to consider a safe transaction. They recommended that developers consider “Checkpoints DNS “which are like reliable control points in the Blockchain To prevent future reorgs, although this could compromise some of the decentralization of the network – one of the cryptocurrency pillars, where there is no central authority.

For its part, Yu Xian, co -founder of the security firm Blockchain Slowmistwarned in an X publication that ignoring these risks could allow double expenses even without strictly controlling more than 51% of the hash rate of the network.

“If the Monero community does not take the issue of block reorganization seriously, this Damocles sword will always be hanging on Monero’s head … they will not necessarily make a double expense attack, but have that capacity … they do not even need strictly more than 51% of the calculation power“Xian said.

Crypt commentator, Vini Barbosa, expressed his distrust in Monerostating that he will no longer accept payments in the Native XMR token until the problem is solved, and pointed out that in the last 24 hours, almost 30% of the minted blocks had been discarded.

Token XMR rises despite the incident

Despite the incident, the price of XMR challenged expectations, rising to a maximum of two months of USD $ 333 after the attack.

XMR has increased 3.8% in the last 24 hours A USD $ 300.8, a slight correction from the earliest jump, according to data from Coingcko. This rebound contrasts with a generalized fall in the cryptocurrency market that sees Bitcoin Slide under USD $ 115,000, and with the stability of Token Qubic, which showed no significant variations.

This event highlights the vulnerabilities inherent to work test networks (POW), where most mining power can influence the chain. The community of Monero Now debate solutions to strengthen the network without sacrificing its decentralized essence.

A proposed solution implies the use of DNS control points, reliable snapshots of the block chain, to counteract future reorganizations, reported COINDESK; although the Critics argue that this would compromise the decentralization of the network.

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Article written with the help of AI, edited by Diariobitcoin

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