Former Mt. Gox CEO Mark Karpelès has floated a Bitcoin hard fork proposal centered on 79,956 BTC linked to the exchange’s 2011 hack. The coins, valued at about $5.2 billion in the source material, have remained in the wallet known as “1Feex…sb6uF” for more than 15 years without moving.
Under Bitcoin’s current rules, those funds can only be spent with the original private key, which is still unknown. Karpelès’ proposal would add a special consensus rule for that single address, allowing a court-approved recovery signature controlled by the Mt. Gox trustee to unlock the coins and distribute them to creditors through Japan’s legal rehabilitation process.
A one-off exception aimed at one wallet
Karpelès has framed the idea as a narrow, one-time exception rather than a general rollback tool. In his description, the proposal would not rewrite Bitcoin’s transaction history. The point, instead, is to open discussion around whether an unusually specific case tied to a long-known theft justifies intervention at the protocol level.
That is exactly where resistance begins. Bitcoin’s core appeal for many users and developers rests on immutability: once transactions are confirmed, they are not supposed to be reversed or edited. Critics argue that changing ownership rules even once would alter a foundational assumption of the network.
Opposition focuses on precedent and chain credibility
Much of the backlash is about precedent. If Bitcoin changes its rules for the Mt. Gox case, opponents say other victims of major hacks could demand the same treatment later. A chain that makes exceptions for one incident may face pressure to do it again, and that could weaken confidence in Bitcoin’s final settlement model.
The source also points to the 2016 DAO hack on Ethereum as a comparison. Ethereum chose to reverse that hack through a hard fork, and the result was a permanent split into two networks. Bitcoin advocates who oppose ledger intervention cite that episode as a warning, arguing that direct action on disputed funds can fracture communities and create confusion in the market.
Separate from the BTC already being repaid to creditors
The article makes a clear distinction between the coins targeted in this proposal and the BTC already moving through the Mt. Gox repayment process. After the exchange collapsed in 2014, about 200,000 BTC were recovered and are being distributed to creditors under court supervision. The 79,956 BTC in this hard fork discussion are a different pool of assets.
For now, the plan remains a proposal. According to the source, most experts see approval as unlikely because it would require broad agreement from developers, miners, and the global Bitcoin community. The debate reaches beyond Mt. Gox itself and returns to a long-running question: should Bitcoin ever change its rules to correct past theft, or should the ledger remain untouched regardless of the circumstances?