Bubble or not! Facts you might not know about bitcoin ...
Bitcoin developer Sergio Lerner estimates that almost 1 million unspent bitcoins belong to the cryptocurrency's mysterious creator...
Reuters @moneycontrolcom
1/15
Bitcoin rocketed to another record high close of $16,000 on Bitstamp exchange on Thursday after gaining more than $4,000 in just 48 hours, stoking concerns that a rapidly swelling bubble could be set to burst. There were huge...
Website:
http://www.moneycontrol.com
Home – Cryptocurrency Brokers
* Risk Warning: Trading CFDs on margin carries a high level of risk, and may not be suitable for all investors. Losses can exceed investment.
** Funding methods can vary with each broker and country. Please visit broker's website for accurate local information.
Live Charts
"
WHAT ARE CRYPTOCURRENCIES?
Cryptocurrencies first appeared with the creation of Bitcoin in 2009--today, they're the hottest...
Website:
https://www.cryptocurrency-brokers.com
Bitcoin Addresses - dummies
Similar to the way e-mail addresses work, a bitcoin address can be used to both send and receive data -- or in this case, bitcoins. That said, there is one major distinction to be made between bitcoin addresses and e-mail addresses. People can have multiple bitcoin addresses they can use to send and receive transactions.
In fact, it is advisable to use a brand new bitcoin address for every...
Website:
http://www.dummies.com
Related topics : create a bitcoin wallet address / create bitcoin payment address / bitcoin wallet address generator / bitcoin wallet address length / bitcoin wallet address
On Bitcoin Security | Bespoke Investment Goup
With its skyrocketing price, Bitcoin's popularity has also hit feverish levels.� Despite the mania, many newcomers still have no idea what kind of risks they�face with improperly securing their investment. The most common of the "security sins" is leaving bitcoin on an exchange. Coinbase, perhaps one of the most reputable bitcoin exchanges, is insured against any hacks of their digital...
Website:
https://www.bespokepremium.com
Bitcoin retreats as another cryptocurrency offshoot ...
Bitcoin retreats as another cryptocurrency offshoot appears
Wed, Oct 25, 2017 - 12:32 PM
[HONG KONG] First there was bitcoin, then bitcoin cash - and now there's bitcoin gold.
A new iteration of the cryptocurrency has been formed after some developers split the blockchain, the digitised ledger on which the bitcoin is based. Called bitcoin gold, the offshoot comes less than three months after...
Website:
http://www.businesstimes.com.sg
Bitcoin goes to $13,000 - betanews.com
When predicting the price of Bitcoin �you have to keep in mind one thing: you will get it wrong. It's a futile exercise. It is simply impossible to tell where Bitcoin will end up at some point, simply because its evolution is like nothing we have ever seen.
Since the beginning of the year, when it traded for under $1,000, and until today, when it broke $13,000 for the first time, Bitcoin has...
Website:
https://betanews.com
Related topics : bitcoin cash fork 13 / bitcoin cash fork time / 1 bitcoin worth today / bitcoin price prediction today / value of 1 bitcoin cash
10 best cryptocurrency apps for Android - Android Authority
by Joe Hindy November 8, 2017
408
Cryptocurrency has taken the world by storm. All over the world there are people mining for Bitcoins, Doge coins, and various other forms of currency. They're starting to carry some real value in the real world and some places even accept cryptocurrency as payment for goods and services. In this roundup, we'll take a look at the best cryptocurrency apps for...
Date: 2017-12-20 04:40:22
Website:
https://www.androidauthority.com
Bitcoin, Ethereum, Bitcoin Cash All Crash, $60 Billion ...
Bitcoin dived from an all-time high of $11,400 to a recent low of $8,800 in the past 24 hours, down by nearly $3,000 before slightly recovering to $9,300 at the time of writing.
With its market cap falling by nearly $30 billion, its price down 15%, while its trading volumes remain at all time highs for the asset at around $10 billion.
Bitcoin dives after crossing $10,000.
The fast selling came...
Website:
http://www.trustnodes.com
Related topics : digital virtual currency and bitcoins / digital currency like bitcoin / bitcoin digital currency price / bitcoin digital currency / top digital currency companies
Where & How to get Bitcoins - FreeCoins.com
Most bitcoin wallets fall into one of three categories: software wallets, which store bitcoins on your computer; online wallets, which are web-based services that store you bitcoins on their servers; and "vault" services, which keep your bitcoins in secure remote, offline storage. Some people even print out their bitcoin keys and keep them in a paper wallet. Multisig wallets are also becoming...
Website:
http://freecoins.com
Want to buy Bitcoin for your Sipp? Here’s how - Citywire Money
Want to buy Bitcoin for your Sipp? Here's how
You can get exposure to the digital currency with an exchange traded note. Whether you should do is another question ...
Markets
by Tanzeel Akhtar on Sep 07, 2017 at 13:58
With geo-political tension around the world reaching a new high and fears of a global debt crisis on the rise again, is this the time to start thinking about diversifying...
Website:
http://citywire.co.uk
Related topics : bitcoin digital currency exchange / bitcoin trading currency market / digital currency like bitcoin / bitcoin digital currency price / bitcoin digital currency
Current Bitcoin (BTC) Price and What is Bitcoin About ...
Current Bitcoin (BTC) Price and What is Bitcoin About
Bitcoin Current Price
Bitcoin
What is Bitcoin?
Bitcoin is a cryptocurrency and is the first decentralized digital currency. The reason why it is decentralized is that the system works without a central bank or single administrator. The network is peer-to-peer and transactions take place between users directly through the use of cryptography, without an intermediary. These transactions are verified by...
Website:
https://coinsprice.net
Related topics : current bitcoin mining prices / current bitcoin price / btc bitcoin price / current value of one bitcoin / current bitcoin market value
Bitcoin Skyrockets, Race to First Cryptocurrency ETF Heats ...
Trades from $3
Read MoreHide Full Article
Bitcoin soared to a new high above $4,300 today, rising more than 28% over the past week. The digital currency has now more than quadrupled in value from around $997 at the start of the year. $1 invested in bitcoin seven years ago is now worth over $1.4 million .
�
Recent surge in bitcoin price resulted from strong investor demand from Japan as also...
Date: 2017-12-19 22:26:12
Website:
https://www.zacks.com
A Short History: How Bitcoin Reached Parity With Gold
Chart: How Bitcoin Reached Parity With Gold
Charting the fast and volatile rise of bitcoin
The Chart of the Week is a weekly Visual Capitalist feature on Fridays.
Would you rather have one bitcoin, or a single ounce of gold?
The answer used to be obvious. Even at the climax of the legendary 2013 rally, bitcoin was never able to reach unit-for-unit parity with gold.
However, since an off-year in...
Website:
visualcapitalist.com
CME Group Announces Launch of Bitcoin Futures
CHICAGO, Oct. 31, 2017 /PRNewswire/ --� CME Group , the world's leading and most diverse derivatives marketplace, today announced it intends to launch bitcoin futures in the fourth quarter of 2017, pending all relevant regulatory review periods.
The new contract will be cash-settled, based on the CME CF Bitcoin Reference Rate (BRR) which serves as a once-a-day reference rate of the U.S. dollar...
Website:
cmegroup.com
Bitcoin is on the verge of splitting in two - The Verge
Bitcoin is in the midst of a civil war. It has been simmering for some time, though it remained largely out of view to the general public until last month, when a prominent Bitcoin developer announced that the cryptocurrency and the technology underlying were, in his opinion, a failed experiment .
The developer, a former Google engineer named Mike Hearn, believed that bitter infighting...
Website:
theverge.com
Related topics : bitcoin mining software open source / bitcoin open source miner / bitcoin open source software / will bitcoin be the one world currency / how to make bitcoin payment system
BTC Price: What Is the Bitcoin Price Prediction for 2017 ...
After years of volatility, the Bitcoin price forecast is finally on an upward trek through 2017 and beyond. In just five years, the Bitcoin price (BTC price) rose from a few cents to over $1,000, which should give you some sense as to how much money early investors made. But don't worry, our Bitcoin price prediction 2017 shows that there is still more room to the upside.
There is still a lot of...
Website:
http://www.indiabitcoin.com
Bitcoin has surpassed $9000 and is ... - Latest Hacking News
0
4
It is a serious market with few models in recent investing history. The Dow Jones modern average, in its biggest year, 1915, went up 82 percent, or one-tenth as much as Bitcoin has worked up this year. Amazon's red-hot stock is up only one-fifteenth as much as Bitcoin this year.
The price has been rammed up by a�flood of new buyers�from throughout the world who think they have located a...
Website:
https://latesthackingnews.com
Related topics : bitcoin buy price and sell price / bitcoin exchange price history / bitcoin price exchange / bitcoin buy one exchange sell another / bitcoin one share price
What Community Bankers Should Know About Virtual ...
The virtual currency landscape includes many participants, from the merchant that accepts the virtual currency, to the intermediary that exchanges the virtual currency on behalf of the merchant, to the exchange that actually converts the virtual currency to real currency, to the electronic wallet provider that holds the virtual currency on behalf of its owner. Accordingly, opportunities abound...
Website:
https://www.communitybankingconnections.org
ICO? Bitcoin? Blockchain? A guide to digital currency
<iframe src="https://www.marketplace.org/2017/09/22/tech/ico-bitcoin-blockchain/popout" frameborder="0" width="100%" height="240px"></iframe>
Copy
Close
Perhaps you've seen the term ICO, or initial coin offering, pop up recently in your business news. It's a whole new system of money being traded in the digital world, helping startups grow. They've raised nearly $2 billion, according to some...
Website:
https://www.marketplace.org
Related topics : bitcoin currency of the future / digital money like bitcoin / digital currency like bitcoin / bitcoin buy one exchange sell another / what does a bitcoin transaction look like
What Does the Bitcoin Fork Mean for Cryptocurrency ...
What Does the Bitcoin Fork Mean for Cryptocurrency?
The Bitcoin fork came and went, now cryptocurrency markets can get back to business
http://bit.ly/2w6RnsD
Rather than a day of infamy, August 1, 2017 will likely go down as the day of no consequence. For months, cryptocurrency chatter focused almost exclusively on the "civil war" among Bitcoin advocates. Years after its introduction, Bitcoin...
Website:
https://investorplace.com
Related topics : bitcoin cash fork date / bitcoin cash fork block / bitcoin cash fork time / bitcoin cash fork / bitcoin cash exchange new york
Four years and $100 million later, Bitcoin’s mysterious ...
Bitcoin, the four-year-old virtual currency that approximates cash on the internet , now powers an economy worth more than $1 billion and is widely admired for the technical sophistication that allows it to operate without a central authority. It got its own ticker on CNBC and inspired a legion of startups . And yet, we still don't know where it came from.
Bitcoin was first introduced to the...
Website:
theverge.com
» What Is Bitcoin? - Bit Trade Australia
Further Reading
What is Bitcoin?
The reason it's so hard for most people to understand Bitcoin is that most people don't really understand money. Money isn't wealth. It's an accounting system used to facilitate the exchange of wealth. (The paradox of money is that while everyone wants it, no one actually wants it - they want the stuff they can buy with it!) Many people are put off by the fact...
Website:
https://btradeaustralia.com
BTC Price: What is the Bitcoin Price Prediction for 2017?
Home » Cryptocurrency » Bitcoin » BTC Price: What Is the Bitcoin Price Prediction for 2017?
https://www.profitconfidential.com/cryptocurrency/bitcoin/btc-price-bitcoin-price-prediction-2017/
BTC Price: What Is the Bitcoin Price Prediction for 2017? Profit Confidential Editorial Desk Profit Confidential 2017-01-24T11:56:50Z 2017-07-21 04:15:20 Bitcoin price prediction Bitcoin price Bitcoin...
Website:
https://www.profitconfidential.com
Is investing in bitcoin really a good idea? Question marks ...
The market capitalisation, including bitcoin and bitcoin cash, was estimated at close to $US100 billion as of October.
Bloomberg
by Stirling Larkin
Many investors are scared to be on the wrong side of history when it comes to the nascent bitcoin and cryptocurrency phenomenon , simply because it provokes deja�vu for those who dismissed the invention of the internet in�the early 1990s as a...
Website:
http://www.afr.com
Related topics : bitcoin market value total / bitcoin investment trust bitcoin cash / bitcoin market value history / current bitcoin market value / bitcoin market value
BitcoinCards.io | Give the gift of Bitcoin, Cold Storage ...
Commemorative greeting cards
Envelope
Use your own public key + custom B&W image or 40 character message in place of private key
Buy Now
Customized +
Send us your own public key and replace the private key with custom image or message. You can keep your private key secure, and gift it to a friend with full confidence.
Use your own Public Key
40 character message (optional)
EXTRA 10% OFF when you...
Website:
https://bitcoincards.io
Income tax department surveys bitcoin exchanges - Livemint
The income tax department's survey on bitcoin exchanges was undertaken to secure information about transactions, parties involved and bank accounts used
Last Published: Thu, Dec 14 2017. 01 18 AM IST
Gireesh Chandra Prasad Vivina Vishwanathan Remya Nair
The survey was part of the authority's broader efforts to profile and scrutinize assessees who pose a risk of tax evasion.Photo: AFP
New...
Date: 2018-01-11 22:13:41
Website:
http://www.livemint.com
Related topics : virtual currency exchange bitcoin / virtual currency and the financial system the case of bitcoin / bitcoin exchange money laundering / bitcoin price exchange / bitcoin exchange market cap
Do free Bitcoin earning apps for Android work? 10 best ...
By H. Parvez on Dec 13, 2017 - Apps
With Bitcoin reaching an all-time high value, you've got to wonder if all those free bitcoin earning apps for Android actually work. Here's our take on it, along with a list of the best cryptocurrency apps that you can trust on completely.
You don't have to be an investment analyst to know what the global boom of cryptocurrencies has been in the past few years,...
Website:
updato.com
Do free Bitcoin earning apps for Android work? 10 best ...
By H. Parvez on Dec 13, 2017 - Apps
With Bitcoin reaching an all-time high value, you've got to wonder if all those free bitcoin earning apps for Android actually work. Here's our take on it, along with a list of the best cryptocurrency apps that you can trust on completely.
You don't have to be an investment analyst to know what the global boom of cryptocurrencies has been in the past few years,...
Website:
updato.com
What is the value of Bitcoin? | IT PRO
2017 has been a great year for Bitcoin, further building on its position as the world's most popular and most funded cryptocurrency. The virtual coin has seen massive growth in the last month alone, rising almost 50% and smashing past the $2,000 mark.
Yet Bitcoin is an entirely different beast to traditional currencies, as it's not backed by a nation's economy, nor is it centrally controlled....
Website:
http://www.itpro.co.uk
I used to be a bitcoin bull—here’s why that changed | Ars ...
I used to be a bitcoin bull--here's why that changed
With "buy bitcoin with credit card" trending on Google, investors should be wary.
reader comments 206
Share this story
I used to be a bitcoin bull. As bitcoin's price soared from $13 to more than $1,000 in 2013, lots of people argued it was an unsustainable bubble. I argued the opposite : that bitcoin's price still had a lot of room to rise....
Website:
https://arstechnica.com
The Bitcoin Investment Trust (GBTC) Is A Joke, Right?
geralt / Pixabay
The GBTC is not an ETF, but a trust. It can only own a certain amount of Bitcoin and does not track the commodity/currency/asset (whatever you'd like to call it) like gold ETFs do with gold. Instead, for one unit of the GBTC, investors get 0.09242821 Bitcoin and also have to pay a 2% annual fee. Today, investors are paying $800 per GBTC unit while the actual net asset value of...
Website:
http://www.valuewalk.com
Bitcoin address - Bitcoin Wiki
Bitcoin address is an identifier (account number), starting with 1 or 3 and containing 27-34 alphanumeric Latin characters (except 0, O, I). Address can be also represented as the QR-code, is anonymous and does not contain information about the owner. It can be obtained for free, using, for example, Bitcoin software. Address example:
14qViLJfdGaP4EeHnDyJbEGQysnCpwn1gZ
Addresses can be generated...
Website:
https://en.bitcoinwiki.org
Bitcoin and Cryptocurrency 101: Understanding the Basics ...
December 20, 2017
istockphoto.com/Rick_Jo
The rapid rise in the price of bitcoin and other cryptocurrencies has attracted the attention of investors, financial companies, regulators, and the media alike. While many have had their interest piqued, it can be challenging to understand the basics of bitcoin and other cryptocurrencies.� �
There are a few reasons for that. First, there is a lot of...
Website:
https://tickertape.tdameritrade.com
Bitcoin Tracker Eur | | OneX BTC
bitcoin news
Tagged
Barry Silbert , bill gates about bitcoin , bitcoin Exchange-Traded Fund , Bitcoin Investment Trust NPV , Bitcoin Investments , bitcoin shareholder , Bitcoin Tracker Eur , bitcoin trade seoul , buy bitcoin shares , Canadian and European shares , company based in Bristol , ele musk new tesla , ele musk news , elen musk about bitcoin , elen musk new projects , elon musk biography...
Website:
http://onexbtc.com
Ethereum vs. Bitcoin: What You Need To Know – Collective ...
I'm in!
Cryptocurrency: It's become a trending word in recent years,�specifically�in relation to Bitcoin.�Many people already know about Bitcoin and perhaps some have even invested in it or use it as currency, but what about other cryptocurrencies that are emerging on the scene? Do they have the same potential as Bitcoin? Can they exceed Bitcoin in value? One cryptocurrency in particular,...
Website:
http://www.collective-evolution.com
Related topics : current value of one bitcoin / what is the current value of 1 bitcoin / what's the value of one bitcoin / value of one bitcoin / bitcoin current currency
Bitcoin address - Bitcoin Wiki
bitcoin address,"/>
bitcoin address, or simply address, is an identifier of 26-35 alphanumeric characters, beginning with the number code or code, that represents a possible destination for a payment."/>
bitcoin address, or simply address, is an identifier of 26-35 alphanumeric characters, beginning with the number code or code, that represents a possible destination for a payment."/>
bitcoin...
Website:
https://en.bitcoinwiki.org
6 Easy Ways To Get Free Bitcoins Online - BitcoinAfrica.io
If you are new to Bitcoin and want to become part of the Bitcoin community, one of the easiest ways to do so is by getting your first bitcoins for free online. In this post, you will be introduced to six easy ways to get free bitcoins online.
Before you get started, you need to set up a bitcoin wallet. Probably the most popular mobile bitcoin wallet in Africa is Luno . Alternatively, you could...
Website:
http://bitcoinafrica.io
Bitcoin India Wallet on the App Store - iTunes - Apple
This app is only available on the App�Store for iOS devices.
Description
India's Most Secure Bitcoin Wallet
Be a part of the Bitcoin evolution, which now has a U.S. $17+ Billion market cap. Start using Bitcoin now!
Millions of customers trust and use Bitcoin, and thousands of merchants around the world are accepting Bitcoin as payment tokens for their products and services.
Bitcoin India Wallet...
Date: 2018-01-11 23:14:24
Website:
https://itunes.apple.com
Everything You Need to Know About Bitcoin’s Timeline in 4 ...
Everything You Need to Know About Bitcoin's Timeline in 4�Minutes
2008�: The Year It All Began
August
�Neil Kin, Vladimir Oksman and Charles Bry apply for an encryption patent application. Not only, did the deny any connection to Satoshi Nakamoto, the alleged mastermind behind Bitcoin, but they also registered the site Bitcoin.org in the same month itself, buying the domain name anonymously...
Website:
https://hackernoon.com
Sacramento Kings to accept Bitcoin - ESPN.com
The Sacramento Kings announced Thursday that they will become the first professional sports franchise to accept Bitcoin virtual currency.
Beginning on March 1, fans will be able to buy gear in the team store and pay for tickets with the digital money.
Kings owner Vivek Ranadive says accepting Bitcoin virtual currency is the next step in allowing fans to leave their wallets at home.�
Sean...
Website:
http://www.espn.com
Related topics : digital virtual currency and bitcoins / digital money bitcoin / accept bitcoin payments / virtual currency bitcoin / buy virtual credit card bitcoin
Is Bitcoin Mining Worth It in Singapore? Or Choose Cloud ...
If you are wondering if Bitcoin mining worth it in Singapore, read on and find out why you should opt for Bitcoin cloud mining instead.
What is Bitcoin Mining?
To start at the beginning, let's look at why mining exists in the first place.
Bitcoin mining is the process of verifying and adding transaction records to the public ledger (the blockchain). The public ledge is called the blockchain...
Website:
https://managingyourfinance.com
Will Bitcoin find a home in Africa? - CNN
MUST WATCH
What is Bitcoin? 01:29
"We request your ID, your address, your date of birth (at registration). We check them against the same databases the banks use," she adds, highlighting the site's emphasis on security.
BitPesa takes care of the Bitcoin trading at the back-end, and for the user the experience is much like sending money by any other independent money transfer service.
Raised $4...
Website:
http://www.cnn.com
Related topics : bitcoin international money transfer / bitcoin money transfer service / bitcoin currency trading / bitcoin trading value / what's the value of one bitcoin
Bitcoin Price in India INR - Current Bitcoin Price with ...
1.3 Bitcoin in India and Demonetization
Bitcoin aka Internet Money aka Future of Money is the talk of the town.
If you haven't been living under a rock for the past 6 years, you must have heard about Bitcoin by now.
Bitcoin has come a long way after debuting in 2009 when the financial crisis was still underway. Back then one Bitcoin was worth less than a dollar.
2016 was a remarkable year (and it...
Website:
http://www.bitcoinprice.com
The Complete Guide to Bitcoin Scams - CoinGecko
Tweet
As we speak, bitcoin market capitalization �is hovering around $6.4 billion dollars. That's a lot of money, and you better believe scammers know this and want a slice of that digital pie.
Whether you are a bitcoin newbie, or someone who have been torched before, you should keep yourself up to date with the latest scam attempts. This is the complete guide to existing bitcoin scams you...
Website:
https://www.coingecko.com
Feds Indict Russian Over BTC-e Bitcoin Exchange
Anti-Money Laundering (AML) , Compliance , Fraud
Feds Indict Russian Over BTC-e Bitcoin Exchange
Greek Police Arrest Man, Accused of $4 Billion in Bitcoin Money Laundering Mathew J. Schwartz ( euroinfosec ) o July 27, 2017 � �
Credit Eligible
Get Permission
Police in Greece on Tuesday arrested Alexander Vinnik, 38, for allegedly running a massive money laundering operation that processed $4...
Website:
https://www.bankinfosecurity.com
Digital 'bitcoin' currency surpasses 20 national ...
More than $1 billion dollars worth of a digital currency known as "bitcoins" now circulate on the web - an amount that exceeds the value of the entire currency stock of small countries like Liberia (which uses "Liberian dollars"), Bhutan (which uses the "Ngultrum"), and 18 other countries.
So what is a "bitcoin," and why would anyone use it?
Unlike traditional currency, bitcoins are not issued by...
Website:
http://www.foxnews.com
2/3 Of All Bitcoins Have Been Mined, 1/3 May Be Lost
On the 30th March 2015, Bitcoin reached the total circulation amount of 14 million coins. There is now two thirds of the total amount of Bitcoins mined that there ever will be in existence. From this we may predict that there will be a rising price in bitcoin due to scarcity, over the long term, as the bounty for miners will be halved to 12.5 BTC per block next year.
14 million bitcoins�have...
Website:
http://www.coinbuzz.com
Related topics : bitcoin total number of coins / bitcoin total coins / bitcoin amount of coins / 1 bitcoin worth 1 million / value of 1 bitcoin in usd
What is Bitcoin Cash? A Basic Beginners Guide - Blockgeeks
In this guide, we are going to be telling you about all the incidents that have led up to the creation of Bitcoin Cash. This is purely for educational purposes.
Bitcoin is, without a doubt, one of the most incredible innovations in the recent past. However, it has also come under a lot of criticism for its scalability issues which has given rise to a lot of debates which are politically as well...
Website:
https://blockgeeks.com
Rare Photos Reveal Life Inside China's Largest Bitcoin Mines
Comments
Editor's Note: The Bitcoin industry exists in a legal gray zone in China, and the miners in this story, concerned about attention from the government, asked not to have their full names or the names of the villages where their mines are located mentioned in this story.
Sichuan Province is home to one of China's largest bitcoin mines, where mining machines are used to produce...
Website:
https://nextshark.com
5 Cryptocurrencies that Could Rival Bitcoin - The Daily ...
5 Cryptocurrencies that Could Rival Bitcoin
2013 has been quite the year for Bitcoin. We have seen exponential growth in Bitcoin's exchange rate and extensive coverage in the media. Another phenomenon we have witnessed this year is the proliferation of alternative cryptocurrencies, five of which we've provided below. What all of these cryptocurrencies have in common is that they rely on a...
Website:
https://dailyreckoning.com
Related topics : what does mining bitcoins look like / bitcoin mining rig asic / bitcoin mining hardware requirements / bitcoin mining hardware asic / bitcoin mining computer power