Mark Karpelès, the former chief executive of the defunct Mt. Gox exchange, is urging the Bitcoin community to consider a network hard fork designed to retrieve nearly 80,000 Bitcoin linked to the platform’s historic hack.
Key Takeaways:
- Mark Karpelès proposed a Bitcoin hard fork to recover 79,956 BTC worth about $5.2B from the Mt. Gox hack.
- The plan would allow the coins to move without the original private key and potentially repay creditors.
- The proposal has triggered strong opposition over fears it would weaken Bitcoin’s immutability.
In a proposal published Friday on GitHub, Karpelès outlined a change to Bitcoin’s consensus rules that would allow 79,956 BTC, currently held in a single wallet, to be transferred to a designated recovery address without access to the original private key.
At current prices, the holdings are worth more than $5.2 billion.
Dormant Mt. Gox Bitcoin Unmoved for 15 Years
“These coins have not moved in over 15 years,” Karpelès wrote, describing the funds as among the most widely monitored unspent transaction outputs in Bitcoin’s history.
He acknowledged the magnitude of the suggestion, stating plainly that the change would require a hard fork.
Such an update would make a transaction previously rejected by the network valid and would require node operators to upgrade their software before a specified activation block.
Karpelès said the idea is not an attempt to sidestep Bitcoin’s development process but rather to trigger discussion around a long-standing impasse.
According to him, bankruptcy trustee Nobuaki Kobayashi has declined to pursue on-chain recovery because there is no certainty the community would support it.
“That creates a deadlock,” Karpelès wrote. “The trustee won’t act without confidence, and the community can’t evaluate the idea without a concrete proposal.”
If the coins were recovered, the existing bankruptcy framework could distribute them to creditors already receiving repayments from the estate.
The suggestion has sparked sharp backlash across Bitcoin forums. Critics argue that altering consensus rules to reclaim stolen funds would undermine Bitcoin’s defining characteristic: irreversible transactions.
“Every time a hack happens, someone will want another special rule,” one Bitcointalk member wrote, warning it would erode trust in the system.
Another user argued Bitcoin should remain independent from legal or government determinations in any jurisdiction.
Karpelès Says Mt. Gox Recovery Case Is Unique as Creditors Back Proposal
Karpelès countered that the case is unique because both law enforcement and much of the community agree the wallet contains stolen Mt. Gox funds.
Some individuals claiming creditor status expressed support, saying any recovery could restore losses from the 2014 collapse.
Mt. Gox once processed roughly 70% of global Bitcoin trading between 2010 and 2014.
The exchange unraveled after a massive theft went undetected for years, ultimately losing about 750,000 customer Bitcoin and forcing a bankruptcy filing in Tokyo.
More than a decade later, the incident remains one of the largest failures in crypto history.
In May last year, Vivek Ramaswamy’s Strive said it plans to acquire 75,000 Bitcoin, valued slightly over $8 billion, from claims related to the defunct Mt. Gox exchange bankruptcy.
Strive noted that the strategy is intended to purchase Bitcoin at a discount price.
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