Ethereum Classic Successfully Completes ‘Agharta’ Hard Fork


Ethereum Classic successfully completed the “Agharta” hard fork at block number 9,573,000 at 06:26 UTC on Sunday, according to

Similar to the network’s last backwards-incompatible upgrade in September, Atlantis, Agharta makes ethereum classic more interoperable with sister-chain ethereum. As part of the hard fork, the Constantinople and St. Petersburg upgrades deployed in tandem on the ethereum network last February will be enabled under Ethereum Classic Improvement Proposal (ECIP) 1056.

The 22nd largest cryptocurrency by market capitalization, ethereum classic and ethereum engaged in a messy divorce following the 2016 DAO hack. Ethereum classic community members opted to not roll back the transactions enabling the DAO hacker to steal the funds; meanwhile, ethereum soft-forked, partially reclaiming the hacked funds.

Three years after the split, ethereum classic has engaged in efforts to rebuild community and technical ties between the two chains, Atlantis and Agharta being two measures towards that effort.

As reported by CoinDesk, Constantinople included four ethereum improvement proposals (EIPs). Most code changes revolved around optimizations for developers, code edits for further scaling solutions and ethereum’s economic policy. 

Although different chains with different visions, ethereum classic is facing similar difficulties to ethereum, however.

According to ETC Core executive director Bob Summerwill, ethereum classic is showing signs of consolidation around select clients – the full servers which process network requests – similarly to ethereum. 

Parity Technologies, which recently announced its intention to step back from maintaining its code base individually, is expected to host 75 percent of the ethereum classic network as another major client, Geth Classic, is deprecated after the Agharta hard fork.

“The client diversity problem on ETC is in the opposite direction [of ETH], with Parity-Ethereum dominating,” Summerwill said in the ethereum AllCoreDevs Gitter channel. “Geth Classic is being deprecated and won’t be supported after this pending fork, and it looks like most node operators are taking the advice and migrating off.”

At time of writing, ethereum classic has 252 Parity Ethereum clients, 167 Geth Classic, 80 Multi-Geth and 1 Besu for a total of 500 clients. Ethereum classic developers, including Summerwill, expect the Multi-Geth and Besu clients to fill the gap. 

Afri Schoedon, release manager at Parity Technologies and ethereum classic hard fork coordinator, told CoinDesk that client centralization is a small concern given the state of Geth Classic and available alternatives. Schoeden said Geth Classic has hardly been updated since its launch in 2016, leading to the deprecation.

“With each fork you always lose some less important nodes that are not very well maintained. We don’t worry about that,” Schoedon said.

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