Former Mt. Gox CEO Suggests Hard Fork to Reclaim $5.2 Billion Stolen Bitcoin

Mark Karpelès’ narrowly scoped Bitcoin Core proposal to recover Mt. Gox’s stolen BTC faced swift rejection from developers and creditors, underscoring Bitcoin’s commitment to immutable consensus rules.

BTC

IMX

CORE

48d ago

Fact Check

Multiple independent, moderately to highly authoritative crypto news outlets report that Mark Karpelès, the former CEO of Mt. Gox, proposed a hard fork of the Bitcoin blockchain to recover approximately 80,000 BTC stolen in the 2011 Mt. Gox hack. The Block provides direct quotes and specific context, including the valuation of roughly $5.2 billion, and other outlets (KuCoin’s news flash citing Odaily Planet Daily, FinanceFeeds/FXEmpire, Phemex, and TodayOnChain) corroborate the same proposal and figures. These reports are consistent across sources and languages, and there are no credible contradictions. While one listed source (an SEC filing) is only tangentially relevant, it does not contradict the claim. The primary uncertainty is that most evidence comes through reputable media rather than an original post from Karpelès himself in this list, but the consistency and specificity across trusted outlets strongly support the statement.

Summary

Former Mt. Gox CEO Mark Karpelès proposed a Bitcoin Core change to redirect 79,956 BTC, stolen in 2011 and worth about $5 billion, to a Mt. Gox recovery address. The patch, under 60 lines, would hard-code an exception allowing a designated recovery key to override the current controller at an agreed activation block height. Submitted as a pull request, it was auto-closed within 17 hours, with developers noting it should have been discussed via the Bitcoin mailing list or as a formal BIP first. Several Mt. Gox creditors also opposed the plan, prioritizing Bitcoin’s principle that private keys equal ownership over recovering their coins. Critics warned that changing consensus rules for specific cases could set a dangerous precedent, risking politicization, hard-fork coordination issues, and chain splits. The coins remain unmoved since 2011.

Terms & Concepts

Hard Fork: A network upgrade that changes consensus rules, making new blocks incompatible with older versions and potentially splitting the chain.
Consensus rule: A protocol-level validation requirement enforced by nodes for blocks and transactions; changes require coordinated upgrades by participants.
Bitcoin Core: The reference implementation of Bitcoin’s protocol, maintained by open-source contributors on GitHub.