Ghash.io Commits to Remaining Below 40% Overall Bitcoin Hashrate
There's certainly been a lot of discussion lately with regard to the Ghash.io mining pool. Consistently reaching a high bitcoin network hashrate (exceeding 40 percent), the pool has been viewed by many in the community as a bad player. Why is this a big deal? Because when a pool reaches 51 percent network hashrate, they may have the ability to carry out malevolent attacks. These include excluding transactions, reversing transactions while in control, and more. But now, amid all of the bad press, Ghash.io and sister company Cex.io have released a statement on the matter, and the....
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The bitcoin community has been critical for the past two days of the increasing hash rate of the biggest bitcoin mining pool Ghash which states that it is currently able to process 37.92 Ph/s leading to an estimation of 42% – 47% of the total network hashrate. Ghash has not yet responded to requests for comments. However, in a press release issued in January 2014 to alleviate fears of 51% control of the total hashrate, Ghash, whose hashrate is stated to consist of approximately 45% BitFury ASIC based miners and 55% independent miners, publicly stated in clear terms that: “GHash.IO does not....
Ghash.io is still currently the largest Bitcoin mining pool, based on data from the last 48 hours. In June, the media had a frenzy over the fact that a Bitcoin Mining pool had over 50% of the total network hashrate, thus presenting an unnecessary threat to the health of the Bitcoin network. Currently, they are sitting at around 30% of the total Bitcoin network hashrate and today it has been revealed that they plan to never go above 39.99% ever again. Unlike BTC Guild, Ghash.io does not have a set mitigation plan involving raised fees or closed registrations to back up their promise. In....
Fears of a potential 51 percent attack are once again brewing in the bitcoin community with news that mining pool Ghash.io has reached an uncomfortably high hashrate in the past twenty-four hours. The bitcoin subreddit on social sharing website Reddit.com, with over ten shares on the page related to the matter. The pool's hashrate reached as high as 47 percent - extremely close to the 51 percent envelope that would open the door to attacks that could be carried out by the majority. One such attack would be double-spending transactions. That is, using the same amount of bitcoin twice. Such....
Here at CCN, I was able to talk with Jeffrey Smith of Cex.io and ask him a few questions about cex.io and ghash.io. For those readers that are unfamiliar with the Cex.io/Ghash.io websites, they provide simple access to mining power of any size for end users around the world. With Cex.io, users can purchase GH/s on a freely floating hash for Bitcoin exchange. Ghash.io is the mining pool that rented equipment from Cex.io is pointed towards, many other miners also use Ghash.io because they are able to offer 0% fees and a high hashrate consistently. Back a few months ago, CCN raised concerns....
Many are uncomfortable with Ghash.io's large percentage of total network hashrate. Update: Ghash.io has responded as expected. Two Cornell researchers that have been trying to poke holes in Bitcoin's network security, Ittay Eyal and Emin Gün Sirer, have taken this opportunity to remind the Bitcoin community of many other theoretical attacks that can occur with a centralized Bitcoin mining network. In fact, many of the theoretical attacks described would arguably be more likely than a blatant 51% attack. However, any attack, no matter how subtle, could be detected on the blockchain and the....