PANews reported on February 28th that, according to The Block, former Mt.Gox CEO Mark Karpelès proposed a one-time hard fork of Bitcoin: a new consensus rule would allow the use of a "Mt.Gox recovery address" to sign and spend approximately 79,956 BTC (about $5.2 billion) from the 2011 hacker address 1Feex…sb6uF to return to creditors. He acknowledged the need for a coordinated network-wide upgrade and the potential for fork controversy.