Bitcoin SV has reportedly suffered a "massive" 51% attack beginning at around 11:46 am Eastern Daylight Time on Tuesday, resulting in up to iii versions of the chain beingness mined simultaneously.

Analytics provider Coin Metrics confirmed Tuesday afternoon that its FARUM risk management platform had identified the 51% assault.

Information well-nigh the attack was further corroborated past Lucas Nuzzi, a network data production director at Coin Metrics. "Someone is seriously trying to destroy BSV," he tweeted, adding:

"For over three hours, attackers were able to accept over the chain. All exchanges that received BSV deposits during that time might have been double spent."

At the time of writing, it was unclear whether the assault had ended or whether the perpetrator was just taking a break.

Related: Bitmart seeks restraining order to forestall hackers from selling fake BSV

The latest update from Coin Metrics confirmed that its FARUM nodes witnessed a "deep reorg with a max depth of 14 blocks." Although no farther reorganization events were observed, "synchronization conflicts" are still taking place across major mining pools.

Bitcoin Clan, an industry group that supports the adoption of BSV, issued a statement about the ongoing attack:

Bitcoin SV was the result of a highly contentious difficult fork of the Bitcoin Cash (BCH) blockchain in November 2022. BSV has an identical monetary policy to BCH and Bitcoin (BTC), though the fork was a result of deep internal disagreements with the Bitcoin Cash community regarding a set up of proposals to make transactions more efficient.

Referred to as "Bitcoin Satoshi Vision," BSV has had no shortage of detractors since its split from Bitcoin Cash. While the so-called BCH conservatives prevailed in the hash state of war, Bitcoin SV still emerged as ane of the largest blockchain networks in terms of monetary value. Although its ranking has fallen precipitously, BSV currently has a market capitalization of just over $2.half-dozen billion.

Related: Soft fork vs hard fork: What is a hard and soft fork in cryptocurrency?