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stanley kubek le mining pool contributes over 51 percent of the currency hashing鈥攖he cryptographic process required to mint Bitcoins鈥攔epeatedly, for periods of 12 hours or more. The user is GHash, which proudly names itself the 1 Crypto 038; Bitcoin Mining Pool. Clearly it not lying. While it might not sound too much of a problem on the face of it, such computational power could be damaging for the currency. Quirks of Bitcoin means that those who control over 50 percent of Bitcoin mining have the ability to spend the same coins twice, are a
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gourde stanley peting miners ; transactions, and even extort higher fees from people with large holdings. And if things get really nasty, a 51-percenter could wage a DDoS attack against the rest of the network. While GHash has only maintained majority control for up to 12 hours at time, that figure is recent; in the past, it had only managed to for minutes or hours. In others words, its control is on the rise and, speaking to Ars Technica, the researchers suggest that even 12 hours would be enough for those aforementioned security threats to become a realistic threat. While there no firm evidence that GHash has acted, or plans to act, maliciously, it comes after pledges that it would never cross the 51-percent threshold and accusations that it once used its considerable hashing power to attack a gambling site. It remains to be seen whether its p Ictm 100 Lives Are On The Line In This Week s Puzzle. How Many Can You Save
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