On Saturday 28 November, Thanos‘ planned hardfork took place in the Ethereum Classic network. Its goal is to improve the security of this cryptographic currency after a series of recent attacks of 51%.
The update was activated on block #11 700 000 at 19:48:41 UTC.
Earlier the developers reminded the customers of the Crypto Genius need to update their software to the latest versions.
At the time of publication, this has not done 27% of nodes, including 18% of nodes with the most popular Coregeth client. A number of these clients, including Openethereum and Multigeth, no longer support the network.
As previously reported by ForkLog, the Thanos update (ECIP-1099) will double the Ethash era (Etchash) from 30,000 to 60,000 blocks, effectively reducing the size of the acyclic directional column [DAG]. This will allow the 3Gb and 4Gb GPUs to resume Ethereum Classic mining.
In October, the Ethereum Classic Core and Ethereum Classic Labs teams implemented the Exponential Subjective Scoring (MESS) solution on the Mordor test site. The new finalisation algorithm almost 31 times increased the cost of reorganising the blocks, allegedly removing the motive for the attacks by 51%.
However, representatives of IOHK, a developer of Cardano cryptographic software and a member of the ETC Cooperative initiative, expressed doubt that MESS would completely eliminate the possibility of new reorganisations in the Ethereum Classic blockchain.
In October, the Ethereum Classic Core and Ethereum Classic Labs teams implemented the Exponential Subjective Scoring (MESS) solution in the Mordor test site. The new finalisation algorithm almost 31 times increased the cost of reorganising the blocks, allegedly removing the motive for the attacks by 51%.
However, representatives of IOHK, a developer of Cardano cryptographic software and a member of the ETC Cooperative initiative, expressed doubt that MESS would completely eliminate the possibility of new reorganisations in the Ethereum Classic blockchain.
In August, the Ethereum Classic network was attacked three times by 51%. The last time, the depth of the reorganisation was 7,000 blocks, which is equivalent to approximately two days of mining.