Single Miner Reorgs Ethereum Classic – Devs Report a Chain Split | Security Bitcoin News

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Members of the Ethereum Classic crew reported that the community suffered a reorganization (reorg) in the present day.

The blockchain community is asking service suppliers to halt deposits whereas it carries out upkeep of the chain.

The newest occasion follows the same assault in January 2019, which led to some exchanges taking pre-emptive motion.

Both Ethereum Classic (ETC) and one of many founders have since put out a press release acknowledging this occasion which they time period a sequence break up. ETC suffered a reorganization (reorg) of roughly 3,693 ETC blocks which occurred at block 10,904,146.

Single Miner Reorgs Ethereum Classic - Devs Report a Chain Split

According to a report by Ethereum Classic crew members, “there was about 3000 block-insertion by a miner who was mining (either offline or there total difficulty could have exceeded current network difficulty while they were honestly mining) for about 12 hours on Core-Geth.”

In a brief prognosis of the chain break up, Ethereum Classic builders say it has recognized the offending miner. The community maintainers added they doubt any main double-spend assaults occurred. Even although the miner was recognized, it’s unsure whether or not or not it was a malicious 51% assault that triggered the reorg. Developer James Wo claims it was “not a 51% attack” and pressured “a miner went offline and was using old client software.”

In the prognosis, Ethereum Classic builders stated:

It may very well be that the offending miner has misplaced entry to web entry for some time when mining, which led to a 12 hour mining interval and about 3,000 blocks inserted. On the primary 2,000 blocks, there was 1 miner and a complete of 5 transactions. It additionally appears that the offending miner has uncled their very own blocks by how briskly they had been mining.

The offending miner used the handle 0x75d1e5477f1fdaad6e0e3d433ab69b08c482f14e. Ethereum Classic crew members additionally offered a timeline of the occasions.

Commenting on the doable impression of the chain break up, Ethereum Classic members say “any transactions during that time are possibly not mined in the order they were intended to have been mined in.”

The ETC devs add, “the about 3,000 blocks had a mean of 0 transactions mined, and any transactions that aren’t mined will be re-submitted to the mempool during a re-org.”

Ethereum Classic crew members are advising miners to “continue mining the chain as-is (chain is currently following the heaviest work which includes the about 3,000 blocks inserted). This is the recommended option as the chain is following proof-of-work (PoW) with the longest chain as intended.”

In 2019, Coinbase detected a deep chain reorganization of the Ethereum Classic blockchain, which included a double spend. The change instantly ceased interactions with the blockchain.

This time round, the Ethereum Classic crew members have taken the pre-emptive step of advising exchanges to halt deposits and withdrawals till investigations are full.

A 51% assault is a possible assault on a blockchain community, the place a single entity or group is ready to management nearly all of the hash price, doubtlessly inflicting community disruption.

In such a situation, the attacker would have sufficient mining energy to deliberately exclude or modify the ordering of transactions.

What do you consider the newest assault on Ethereum Classic? Share your ideas within the feedback part.

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