HashFlare Founders Appeal Light Sentence as Dormant Fraud Wallet Moves $18.5M

Published by James Harris on June 22, 2026June 22, 2026

A wallet connected to the HashFlare fraud has moved 10,600 ETH, worth roughly $18.5 million, after sitting dormant for approximately three and a half years. The timing is awkward: federal prosecutors filed an appeal in late August 2025 to overturn what they consider an inadequate sentence for the scheme’s two founders, and now the funds are moving.

On-chain investigator ZachXBT flagged the transfer, with security firm Cyvers assisting in identifying the activity. The funds left the address identified as 0xff575a22975cc413771825eb84c163189a4d5d22 and moved to two recipient addresses before flowing through instant exchange platforms HiFiSwap and Near Intents, with the entity reportedly converting ETH to Bitcoin. The conversion pattern matters: moving from Ethereum to Bitcoin typically means moving toward a more liquid, harder-to-freeze asset. HashFlare itself was a cloud mining platform that collected over $577 million from roughly 440,000 investors between 2015 and 2019, running at approximately 1% of the Bitcoin mining capacity it claimed while feeding customers fabricated dashboard data. Sergei Potapenko and Ivan Turõgin pleaded guilty in February 2025 to conspiracy to commit wire fraud.

The sentence they received was 16 months, already served in pre-trial custody, a $25,000 fine each, and community service.

For a $577 million fraud affecting nearly half a million people, that outcome is going to be cited in every future crypto sentencing argument for years. Prosecutors are appealing to the Ninth Circuit, which legal experts note typically defers to district judges unless a sentence falls clearly outside reasonable bounds. The DOJ has forfeited more than $400 million in assets for victim compensation but has not announced a distribution timeline, which means hundreds of thousands of defrauded investors are watching wallet movements and court filings simultaneously with no clear answer on when they see money. The wallet activity, whatever its source or intent, does nothing to accelerate that process and adds pressure on prosecutors already arguing the case deserved harsher consequences.

Both defendants are expected to return to Estonia under supervised release terms. Judge Robert S. Lasnik’s concern about treaty transfer logistics and immigration detention was central to his sentencing rationale, a factor the Ninth Circuit will have to weigh against the deterrence argument prosecutors are making.