Cloud Mining

Mining Sweden – Bringing transparency to Cloud Mining

New cloud mining sites are appearing regularly. Many are looking like obvious scams. Hashocean recently launched using staff photo’s copied from another company. Multimine.net launched and seemingly disappeared within a couple of weeks.

Combine these with recent high profile failed or ponzi collapses such as Hashie, PB Mining, AM Hash, Rockminer and the future and/or reputation of cloud mining is at the lowest ebb ever. Out of all the cloud mining companies we’ve tried, only Hashnest and SCloud have stood the test of time. Even Hashnest shut down the miners for several days when BTC was hovering around the $200 mark.

Our usual advice is to make sure you undertake due diligence before investing any money in these companies. Look for contact details, transparency of ownership (very difficult to find in the crypto world), details of hardware (certified photo’s videos etc).

Once you decide to try a new cloud mining company out, invest in a starter pack up to $50 (or a free test account) and so limit your exposure as much as possible. Once payouts start make sure you check the forums and news sections to keep track of any changes in difficulty, BTC price etc.

We’ve heard good news (and also sceptical comments) about a new mining platform Mining Sweden, whcih is attempting to bring transparency and legitimacy to Cloud Mining.

The platform was launched via crypto forums hashtalk, bitcointalk and litecointalk and others. Whilst there are still questions about hardware and farm size we decided to try out Mining Sweden on a small scale and up to now payouts have been as regular as clockwork.

Mining Sweden is concentrating on SHA256 mining and pays out weekly. We’ve had 2 payments (both exactly on time) and the site is moving to daily payments at some point. The ROI from buying their VIP Shares is longer at 300+ days but they do offer a 25% share in company profits after 1 year when you buy these limited edition VIP shares.

Again – please do your own research and don’t invest money you can’t afford to lose. We’ll keep this post updated with our own progress using these sites.

LTC Gear – Signs Of Life?

ltcgear pending
Specialist fpga cloud mining company LTCGear have had a turbulent few months.

Many users felt that LTCGear was ‘different’ to other cloud mining companies in that the site’s owner (Chris S) had successfully developed his own specialised chips to efficiently mine Litecoin.
If fact, using the litecoin talk forum (and latterly his own website) as a conduit he partially succeeded in developing retail versions of his boards.

When cloud mining came to the fore in mid-2014 he began to sell shares in in own farm in the form of qAsics (each qAsic being the equivalent of 100 kh). Some unfulfilled hardware orders were converted to these qAsics which paid out in the form of weekly payments. Rewards were outstanding with ROI claims of 6-8 weeks.

Understandably many new users were attracted through affiliate schemes and special offers. During Summer and Autumn of 2014 the products were frequently out of stock. This gave the site more plausibility and dispelled a lot of murmurings about the site underpinning a ponzi scheme.

Around the time of Black Friday/Cyber Monday 2014 there was a huge sale of discounted qAsic packs. It is now claimed by the site’s owners that a hack occurred whereby the proceeds of these sales were diverted to rogue BTC addresses leading to the loss of a considerable amount of BTC and also a large amount of fake shares. Most of these fake shares ‘could’ then have been sold on to other users using the open trading system that has since been terminated.

The last reported payments to users was on December 19th. Since then there has been minimal contact from Chris and the ponzi claims have once again been rife. (As a caveat – many respected users of the Litecoin forum have steadfastly stuck by Chris and the site in the midst of the storm that has been created). The ruours were not helped by cryptic messages posted on the site. ETA’s were posted regularly and deadlines came and went. The site went down, came back with black screen and new ETA. New servers were deployed. Mysterious maintenance tasks were reported. The database that has been ‘completely scrambled’ was undergoing manual repair.

All the non-communication was fuelling the negative sentiment across the forums. Just last week on 13th Feb, Chris appeared online to host a Q&A session with his concerned customers. He reiterated the severity of the hack and claimed all was nearly resolved and that users would see their balances within 7 days.

The saga appears to be reaching a conclusion with even hardened supporters accepting that this could be the deadline that needs to be met. We shall see. Check back next week for an update.

Ponzis, Scams, Theft and The Price Of Bitcoin

Christmas 2014 will go down in history as a time when hackers, thieves and ponzis changed everything. As I write this post BTC has sunk to $186 (and was considerably lower earlier in the day), major cloud mining operations have powered down their farms (cex.io and hashnest) and unless the price recovers the whole BTC landscape will irreversibly change.

What has caused the current issues?

Around Christmas Eve several cloud mining operations including PB Mining, Hashie, Hashprofit and LTC Gear suffered hacks or operational issues with a net effect of halting payments to customers. The circumstances and validity of each issue no doubt vary but the consensus seems to be that PB mining could well have been a ponzi although the operators claim the closure was a result of blackmail and personal threats. Hashie claimed a hack although the way they dealt with the aftermath screamed incompetance or ponzi. Hashprofit claimed a db breach although in hindsight this looks like a solid ponzi and finally LTC Gear more believably claimed a hack but the jury is still out as the website has still to recover and they are several weeks behind with payments.

To compound matters, the large exchange Bitstamp had a major breach/hack involving the theft of $5 million worth of Bitcoin. Clearly evoking memories of the Mt. Gox situation, the markets reacted badly to an already depressed value.

So what next?

Some are predicting a crash of epic proportions and the death of bitcoin (many of these doommongers are from traditional financial institutions who are threatened in the extreme by cryptocurrency). Their insecurity is manifesting itself into unprecedented attacks during the ongoing slump. Witness this Guardian article (very naive in it’s assumption that Bitcoin has no use)

Our View

Cryptocurrency is in an embryonic stage similar to the birth of the internet. Such great ideas will always prosper even though the naysayers will do their utmost to put a ‘spanner in the works’. Our philosophy is to sit tight, buy bitcoin and ride out the slump.

 

Show Me The Josh! Garza Lays Out His Blueprint For Paycoin

Fast growing cloud mining site zen miners have been hit by a number of issues over the past 30 days.

All was looking hunky dory in August when Gaw took an $8 million stake in the cloud mining company. It looked like a match made in heaven – the most successful asic mining hardware company jumping into bed with a progressive cloud hashing operation. Coupled with the $1 million purchase of the coveted BTC.com domain it was no wonder that CEO Josh Garza was being touted in some quarters as the next Steve Jobs!.

Josh Garza
Garza has been making all the right noises. Almost evangelical and philanthropic (not unlike Jobs) with his public announcements of new features and a customer first policy.

Customers lapped it up, and why wouldn’t they. The company were innovating cloud mining with ‘Hashlets’ – virtual miners that you could buy through Gaw or Zen and instantly activate into pools that were paying handsome daily amounts of BTC.

Then things started to go ever so slightly wrong. Just after announcing a ton of new features Josh and the team went to a BTC conference in Vegas. At around the same time – the platform (and new features) were hit with a host of new bugs. It was unfortunate for many reasons. Being short staffed back at base, the zen support team were struggling to cope with an increasing number of support tickets and the lack of any ‘announcements’ or updates was causing a PR meltdown.

As soon as the Vegas trip ended, Garza continued with the compulsively premature announcements. Seemingly following the Mark Zuckerberg mantra of ‘move fast, break things’ the CEO made apologies for ongoing bugs at the same time as announcing a raft of new features under his own self titled slogan ‘ignore them and innovate’.

The hashlet marketplace, new prime hashlet features, double dipping all sounded like adventurous but welcome features to the zen cloud. Then the world fell in. Zen suffered a double wammy.

First the market leading mining pool Zenpool was hit by falling daily payouts. This was rationalized by Garza as an issue concerning contract negotiations with a large company leasing hashing power from them. Speculation on some bitcoin forums alleged that Zen/Gaw may have lost a large contract. Miners on the zencloud were less than impressed with a daily reward that almost overnight fell from 0.0006 BTC per MH to 0.0003 BTC per MH.

A few days later the company was hit by an even bigger issue. Resellers of the flagship Prime Hashlets were selling 1MH prime hashlets at around the $50 mark. When buyers activated some of these prime hashlet codes they actually received 25MH instead of 1MH (around $1250 worth). Some users were successful in exploiting the issue by buying more primes and/or splitting the prime into 1MH chunks and quickly selling on the marketplace.

It is unclear how much money Zen lost during the exploit but we can safely assume it was ‘significant’ if the reply and explanation that Garza posted on the hashtalk forum is anything to go by.

Legal action was announced against any miners that had taken part in the exploit unless all monies/hashlets were returned. It is unclear how much of the missing BTC was recovered although Garza claimed that over half the people involved had been traced in his statement.

It was a difficult period for innocent users as the site went offline and withdrawals were frozen for a short time.

In true Maverick spirit, Garza and Zen continued with their plans for Project Prime and Hashbase. A Hashpool was introduced where users could mine Hashpoints instead of Bitcoins. Garza promised that these hashpoints would more than make up for the drop in the Zenpool payouts. A new ‘Hashcoin’ was mooted and speculation began to grow that Gaw’s new coin would be the foundation of Project Prime and Hashbase.

hashcoin.com
The Hashcoin (latterly Paycoin XPY) ICO was finally announced after widespread rumours that companies like Amazon and Walmart were already on board as partners and that the coin would be the biggest crypto coin launch of all time. A coin that would be relatively immune to severe price fluctuations and would have ‘near instant’ transaction confirmations.

So let’s have a look at the details that were included in the launch

Partners

Conspicuous by their absence in the announcement, the rumoured big hitters were not named. it’s possible that negotiations are ongoing and the ‘why hashcoin’ section has a statement reading ‘HashCoin launches with more merchant acceptance than any other cryptocurrency in history.

Transactional Immutability

Yeah, i had to look that up too! This is the explanation behind the near instant confirmation of transactions. The mathematical formulae behind this innovation are beyond the scope of this blog but i’m sure it will be dissected in the coming days. If it does indeed work then it will be a major breakthrough for Gaw’s mission to bring crypto transactions into the realm of widespread adoption. For now if you are brave you could read the white paper here.

Price Fluctuation Protection

This was the claim that interested me the most and I was eager to see the detail. It turned out to be the least interesting section of the launch. The currency will have a Coin Adoption Fund (CAF) with a ‘sole mandate to promote mass adoption for merchants, miners, and the general public’.

In practice this ‘fund’ is likely to be used to control ‘buy’ and ‘sell’ orders to stabilise the price.

Existing miners at Zen and the ICO (initial coin offering)

Here’s the good news for existing Gaw/Zen customers and a delivery on a promise made by Garza a couple of weeks ago. Zen users will get first dibs on the coin along with institutional investors. All the ‘Hashpoints’ mined will be eligible for exchange against paycoins at the rate of 400 points to 1 coin. This second stage of the ICO will enable miners to purchase the coins at a discounted rate (similar to a conventional share option scheme). The public ICO will see the coins priced at around $20 each and (with the help of CAF) the price should be sustainable in the short to medium term.

This represents a very good deal for loyal Gaw/Zen customers and could prove to be a masterstroke by Garza. The plans for the coin are very ambitious and Garza has been forging an almost cult like status amongst zen cloud users. The next few months are going to be incredibly interesting to see if Gaw/Zen can pull off one of the most ambitious projects the crypto currency world has ever seen.

Update: The coin hit the markets mid December. As of writing the coins were trading for around $10 each on Cryptsy ahead of the ‘guaranteed’ $20 per coin buyback floor at Paybase. (Due to launch Monday 22nd December)

x11 Coin Cloud Mining at Crypto Coins Trade

Trade all your coins
One cloud mining operation sneeking under the radar is Crypto Coins Trade.

We are well down the road with the larger cloud mining services such as CEX.io, scrypt.cc and zencloud. With a turbulent market it is important to buy and sell at the right time and x11 coins could be something to explore as an alternative to SHA256 and Scrypt.

The site enables you to try before you buy with 5khs of free mining power for 10 days and allows mining of SHA256, Scrypt and interestingly X11 coins. You can buy mining power with paypal and (like other sites) trade your mining power with other users once purchased.

The site looks to be well run and we’ll report back on ROI in a future update. Find out more here.

Is the Hashlet The New Route To Mining ROI?

Gaw Miners recently introduced the scrypt mining hashlet, temporarily causing their shopify ecommerce engine to crash – such was the demand.

So what are hashlets? Billed as the worlds first digital cloud miners, it is reasonably safe to assume these are a matrix of vaultbreaker style mix & match modules. Instead of worrying about expensive hardware and electricity consumption, you simply buy hash power (a virtual machine if you will).

The big difference between the hashlet and the hashing power available on other cloud mining sites, is the claim by Gaw that each hashlet gets more efficient as more of the modules are added to the grid. This, they claim will actually reduce maintenance costs over time!

Judging by the clamour for Hashlets it seems like the public agree. Find out more at Gaw Miners.

Scrypt Mining In The Cloud – Best Bang For Buck at Gaw Miners!

With the launch of myriad asic scrypt miners the days of mining at home seem to be disappearing in favour of cloud mining. Gaw Miners offer a variety of hardware hosted through the zen cloud mining site.

There are many factors to consider and with such a wide array of hardware on offer it can be difficult to make the right choice. Gaw currently offer 1 month of free hosting with their current range but what miner is the most profitable once the daily maintenance charges kick in?

We looked at the full range and took into account the upfront cost and 3 months maintenance charge to find the best deal per Mh for each machine. As hardware is often obsolete within 4-6 months this guide effectively lets you know how much the costs will be for 4 months (including the 1 month free)

Asic Scrypt Cloud Mining Hardware - Best Deals At Gaw
Miner Hash Rate (Mh) Cost $ per Mh Maint/Day Maint/Mh (90 Days) Total $ per Mh Link
War Machine 54 $1049.99 $19.44 $4.41 $7.35 $26.79 More Info
The Boulder 43 $939.95 $21.86 $2.40 $5.02 $26.88 More Info
Silverfish 2 28 $839.95 $30 $1.18 $3.79 $33.79 More Info
The Falcon 27 $734.95 $27.22 $2.20 $7.33 $34.55 More Info
The Ratchet 19 $599.95 $31.58 $1.10 $5.21 $36.79 More Info
G Black 25 $839.95 $33.60 $1.22 $4.39 $37.99 More Info
The Cliff Jumper 9.5 $309.95 $32.63 $0.61 $5.78 $38.51 More Info
Black Widow 13 $419.95 $32.30 $0.98 $6.78 $39.09 More Info
The Fury 1.3 $44.95 $34.58 $0.11 $7.62 $42.19 More Info
Gridseed Blade 5.2 $209.95 $40.38 $0.34 $5.88 $46.26 More Info
The Bee 3.6 $154.95 $43.04 $0.24 $6.00 $49.04 More Info
A2 80 $4199.95 $52.50 $1.54 $1.73 $54.23 More Info
Silverfish 5 70 $3834.95 $54.79 $2.69 $3.46 $58.24 More Info
A2 Mini 28 $2519.95 $90 $0.49 $1.58 $91.57 More Info
Gridseed 5 Chip 0.3 $29.95 $99.83 $0.11 $33 $132.83 More Info

Key:
Column 4 $/Mh = Cost per Mh based on purchase cost only
Column 5 Maint/Day = Maintenance Charge for full Machine per day
Column 6 Maint/Mh (90 Days) = Maintenance charge per Mh for 90 days (120 days if you include first month free)
Column 7 Total $ per Mh = The total cost per Mh over 90 days including purchase cost and maintenance (120 days if you include the first month free)

Conclusion:

Best High End Stealth Machine:

The War Machine 54Mh $1049.95 – Cost Per Mh over 4 Months = $26.79

Gaw Miners War machine

Best Mid Range Buy:

Silverfish 2 28Mh $839.95 – Cost Per Mh over 4 Months = $33.79

Gaw Miners Silverfish

Best Budget Buy

The Fury 1.3Mh $44.95 – Cost Per Mh over 4 Months = $42.19

Gaw Miners Fury

We have a limited number of promotional codes for Gaw Miners.

WELCOMETOGAW – $10 off orders over $150

GAW25 – $25 off orders over $200

GAW3FOR3000 – 3% off orders over $3000

GAW4FOR4000 – 4% off orders over $4000

GAW5FOR5000 – 5% off orders over $5000

*Note – Prices correct as of 5th August 2014 and may be subject to change. Errors and omissions excepted.
 
By
 

CEX.IO Bitcoin commodity exchange announce trade fee

cex.io trade fee introduction graphic

In preparation for it’s expanded currency exchange features (including USD/BTC), CEX.IO the cloud mining and commodity exchange has announced that a trade fee will become applicable in the next 2 weeks.

Up until now it has been possible to exchange BTC and LTC etc for Hashing power with no transaction fee. CEX.IO have only charged a fee for maintenance of their mining facility and hardware.

CEX.IO argue that their new exchange features will negate the need for it’s user base to use 3rd party exchanges such as Cryptsy and Coinbase to convert alt coins and FIAT currencies into BTC before being able to use their services.

Their discussion forum has had a few complaints from some users who think that the existing hardware fees can make the system prohibitively expensive for the smaller miners. Others point out that these fees are already imposed by third party exchanges and so the convenience of having the new features on-site will outweigh the new charges.

The charge will be implemented as a 0.2% flat fee and then later will vary between 0.2 and 0.5% based on the number of transactions being made by each user.

Full story at the CEX.IO blog

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Getting Started With Bitcoins & Litecoins

Bitcoin Miner

There are numerous guides online about bitcoin mining, equipment, mining pools etc but a lot of the information is one way. The first question should be what do you want out of bitcoin?

We’re not all geeks, the same as we’re not all investors, so I’ve broken this guide down to cater for 3 types of potential interest in bitcoin:

1. Dabbler You are interested in mining (or accumulating) bitcoins but you don’t have the time or inclination to buy equipment, compile software or really do anything too techie!

2. Techie You are comfortable with computers and want to get your hands dirty by investing in hardware, reading tech blogs and github articles on getting maximum performance from your gear. You want to be a real bitcoin miner!

3. Investor You’re a small or large investor and you just want to trade in bitcoins like any other stocks and shares.

Hopefully you’ll fit into one of those categories. If you don’t please let me know and i’ll revise this document accordingly.

THE DABBLER

So you don’t have time or can’t be bothered with the techie stuff? No problem. Cloud mining is increasing in popularity. Cloud mining websites allow you to ‘rent’ equipment or buy hashing (mining) power.

The benefits are numerous. No expensive hardware to buy or set up, no electricity costs to worry about, the potential to mine 24/7 without the stress of keeping your gear in check and also less of a worry about interruptions to your internet connection.

Sites are available that will allow you to mine SHA-256 currencies (like Bitcoin) or Scrypt based currencies (like Litecoin). It is not within the remit of this article to advise on which currencies are the most profitable to mine, but based on the mining power you buy you can use online mining calculators like the one at Coinwarz before you start out.

Keep in mind that profitability can vary depending on the current level of difficulty and the number of coins already mined (as well as market sentiment ofcourse).

cex.io is a bitcoin commodity exchange that allows you to mine bitcoins by buying (or trading) their hashing power with other users. It can be fun and rewarding if you trade at the right times. Your dashboard will show you how many coins you have accumulated in real-time. The site automatically mines Namecoins, Devcoins and IXcoins at the same time as bitcoins and you can also use your own mining hardware at their ghash.io mining pool. Litecoin, Dogecoin and Auroracoin mining are also either already running or in development. You can also buy Future Hashing Power at reduced rates to use at time triggered intervals.

Another site Hash Profit concentrates on scrypt, scrypt-N and x11/13 based currencies. Unlike cex.io the mining pools at Hash Profit are private so you can’t use your own hardware. They claim to mine the most profitable coins to maximise your return. They allow you to trade for KHS (hashing power) or simply deposit bitcoins to fund your account.

It’s worth noting that you’ll need some Bitcoins and a digital wallet to start mining on these platforms so if you don’t want to risk sites like ebay for this you can purchase bitcoins at Coinbase (US) or Bitstamp (EU).

You’ll need to provide detailed ID information to open an account at Coinbase or Bitstamp so be prepared. If you’re still keen to get involved then everything is explained in detail on the respective sites. cex.io’s guide is particularly user friendly.

THE TECHIE

Asic Miner Block Erupters and Anker Hub

Let’s face it, Geeks are the new hipsters and having your own mining farm is more impressive than owning a vintage corvette. If you want to mine SHA-256 currencies like Bitcoin and Peercoin you are going to need some powerful gear.

At the low end, ASIC USB BLOCK ERUPTER miners running at 330-336 mh/s used to be the choice for hobbyists and bedroom miners but the increasing difficulty and newer technology has lessened their appeal. Get in at the start of a new currency and these miners could still make you money. Many farms were established on these miners and multi-slot hubs supporting 7 or more miners could generate 2.5 gh/s or more.

Antminer U1

In January (2014) Bitmain’s Antminer U1’s arrived on the market. They were similar in operation to the ASIC block eruptors but crucially each could mine at up to 2.2 gh/s (the equivalent of 6 or 7 Asics). The price of the Antminer U1 (as of going to press) was around $45 (£30) – a price comparable to the ASICS in December 13. (This shows how fast technology moves and how you need to be careful with your hardware investments).

High end gear like the Antminer S1 Blade (Speed up to 200 gh/s), Butterfly Labs Monarch (600 gh/s) and KNC Miner’s Neptune (3000 gh/s) have set the standard for advance mining farms.

If you want to get started, we’d recommend the Antminer U1. They can be picked up cheaply and you only need a suitable USB hub to attach to your computer to get started.

Next you’ll need suitable software to control the actual mining. CG Miner or BFG Miner are open source projects with versions for Mac (OSX) and Windows and Linux. It should be pointed out here that you’ll need to be comfortable in the command line or Terminal (mac) to get these compiled and/or running.

If you are on a Mac you can download and get started with CG Miner here. The same page also has a GUI version of the software called Asteroid which is super simple to setup and use.

Windows users can head over to the github repository.

Another great piece of software to enable mining of SHA-256 and Scrypt based currencies and is available in all flavours (OSX, LInux and Windows) is MultiMiner. The website and installation guide is super easy to use.

For Scrypt based currencies you will need a powerful GPU in your PC, or better still build a custom rig for mining Litecoins, Dogecoin, Feathercoins etc

You can possibly use your existing graphics card but your mining power will probably be small unless you have a high end gaming computer. Top spec GPU’s to consider are the AMD Radeon R9 290X or the 7990.

Once you’ve set up your gear you’ll need to download a wallet or use an online wallet before you can start mining. These links above have downloadable wallets for LitecoinDogecoin, and Feathercoin. For Bitcoin you can download the wallet from the official site here or use an online wallet at a site like Blockchain.

Once you have downloaded your wallet you’ll need to wait for it to sync with the network. This can sometimes take a few days so be patient. Make sure you encrypt your wallet and use strong passwords (see our security guide here).

We’re nearly ready to start mining! Solo mining is unlikely to be profitable unless you have a mining farm full of mega equipment, so the best policy is to join a mining pool. Here you’ll be mining with masses of other users and you’ll find blocks easier. You point your mining equipment to your chosen pool using information supplied by the pool.

You can input this information in the terminal/command line or create a batch file to do it for you. Each mining pool has full instructions for implementation.

There are myriad mining pools. We’ve successfully used Bitminter for Bitcoins. Dogechain pool for Dogecoins and of course CEX.IO’s ghash.io for multi mining.

There’s a full comparison list of Bitcoin mining pools here. For Litecoin pools check this list.

Happy mining!

THE INVESTOR

If you simply want to trade Bitcoins on the financial markets you can do so by creating a free account at Plus500 who have a great website and mobile app so you can trade on the move.*

Bitcoin prices are very volatile so short term gains (and losses) are very possible. Before Christmas the Bitcoin price peaked at over $1000 but it is now down to around $620. Ripe for the canny investor.

We hope you’ve found this guide useful. For a full list of Cryptocurrencies visit the Bitcoin Wiki.

Please remember that the value of investments and the income derived from them can go down as well as up. Exchange rate movements can also have a positive or negative impact on the value of Non-UK investments. Past performance is not a reliable indicator of future returns and you may not get back your original investment. Generally, investments should be considered for the medium/long term.

You should weigh up factors such as the impact of any potential penalties and charges and the loss of possible benefits in circumstances where you may be considering cashing in or transferring an investment. If in doubt seek professional Financial Advice. Your capital may be at risk.

 

Future hashing contracts introduced by cex.io

Rapid development and feature rollouts at cloud mining/hash trading company cex.io have this week included FHA (Future Hash April) and FHM (Future Hash May) markets.

The system allows users to purchase hashing power at a discount in advance of the period in which the extra hashing power can be used. The markets for April and May were trading (as of today) at around 0.008 BTC per 1GH for April and 0.004 BTC per 1GH for May. The introduction also had a slightly deflationary effect on the standard GHS/BTC market with the price dropping to 0.011 per 1GH from around 0.015 per 1GH the previous day.

FHA and FHM trading at cex.io

The new feature came out of the blue and looks good for cex.io cashflow. Cheap hashing power can be purchased for the month in question and at the end of the period it is converted back to regular strength GH. The site will be trialling the system for 2 months before deciding on making the feature permanent.

*Note – Following the cex.io offer of double reward litecoin mining which started Thursday (13th March) the site attracted nearly half the total litecoin mining power globally and had to impose restrictions to prevent it hitting the 51% vulnerability threshold. The rewards were halved to 1.25 x multiplier when the total hashing power rose to between 25-60 GHs (as of tonight) with standard returns if the hashing power goes over 60 GHs. These arbitrary figures appeared to change during the day (Friday) as concerns about the monopoly on hashing power rose.

CEX.io
cryptsy alt currency exchange