The Secure, Shared Bitcoin WalletSecure your bitcoin with the open source, ‑multisignature wallet from BitPay.Get CopayCopay is a true bitcoin wallet, not an account service.Secure your personal funds with multiple signatures, or just one.Take security into your own hands and avoid trusting third parties with your savings.Like a joint-checking account, your Copay wallet can have multiple users.To send money, the group approves each transaction.Manage shared funds with friends and coworkers.Share a wallet with your child and introduce them to bitcoin.Copay makes sharing a wallet simple and secure.No more tedious address management.The Copay app securely stores multiple, distinct bitcoin wallets, allowing both business and privacy-conscious users to keep funds carefully separated.Manage personal, business, and testnet wallets easily, all without leaving the app.Copay uses hierarchical-deterministic (HD) wallets, allowing for secure in-app wallet generation and backup.Press that send button with confidence.Copay is one of the first bitcoin wallets to support the full Bitcoin Payment Protocol (BIP 0070-0073).

When you send money to a Payment Protocol-enabled merchant, Copay securely verifies that your payment will go to the right place.The first bitcoin wallet to bring testnet support to both iOS and Windows Phone.Copay includes native support for the Bitcoin Testnet, perfect for testing new bitcoin applications across multiple platforms.With multisignature (P2SH) and multiple wallet support, Copay makes it simple for developers to test and demo bitcoin applications without fumbling between other mobile apps.Not only is the Copay app open source, the server is too.Enterprise and power users can take full control of their finances by deploying their own version of the Copay apps and Bitcore Wallet Service.Dozens of bitcoin developers have already contributed to Copay, and we're not finished yet.Every part of Copay, wallet and server, is available to be reviewed, improved, and developed by the community.You can follow along, discuss improvements, and join in on GitHub at bitpay/copay and bitpay/bitcore-wallet-service.Get the Copay Bitcoin WalletFind it on theiOS App StoreGet it onGoogle PlayDownload fromWindows Store Get theChrome AppAvailable forMac OS XDownload forWindowsGet it forLinux Download the latest source code from GitHub ›Prices In 
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In the past eight years, a new virtual currency has emerged from the virtual world of internet named as Bitcoin.asic bitcoin miner south africaThe roaring Bitcoin price has increased from a... An exchange rate of any currency based on many factors such as inflation, economic factors, political interventions and success or failure of business run by... SPV Security: You do not have to understand how the motherboard works as a computer to run, so you do not have to think how the hood works to use bit coin.Mining cryptocoins is an arms race that rewards early adopters.You might have heard of Bitcoin, the first decentralized cryptocurrency that was released in early 2009.Similar digital currencies have crept into the worldwide market since then.Today, there is very much a digital gold rush where people can make a small profit by investing a few hundred dollars in equipment, and then spend months mining for digital coins before any return on their investment sets in.

Litecoins, Dogecoins, and Feathercoins are three Scrypt-based cryptocurrencies that are the best cost-benefit for beginners.At the current value of Litecoins, a person might earn anywhere from 50 cents to 10 dollars per day using consumer level mining hardware.Dogecoins and Feathercoins will yield slightly less profit with the same mining hardware but are becoming more popular daily.Is It Worth It to Mine Cryptocoins?As a hobby venture, yes, cryptocoin mining can generate a small income of perhaps a dollar or two per day.In particular, Litecoins, Dogecoins, and Feathercoins are very accessible for regular people to mine, and a person can recoup $1000 in hardware costs in about 18-24 months.As a second income, no, cryptocoin mining is not a reliable way to make substantial money for most people.The profit from mining cryptocoins only becomes significant when someone is willing to invest $3000-$5000 in up-front hardware costs, at which time you could potentially earn $50 per day or more.

Now, there is a small chance that Litecoins, Dogecoins, or Feathercoins will jump in value alongside Bitcoin at some point.Then, possibly, you could find yourself sitting on thousands of dollars in cryptocoins.Note: the emphasis here is on 'small chance', with small meaning 'slightly better than winning the lottery'.If you do decide to try cryptocoin mining, definitely do so as a hobby with a very small income return.Think of it as 'gathering gold dust' instead of collecting actual gold nuggets.If your objective is to earn substantial money as a second income, then you are better off purchasing cryptocoins with cash instead of mining them, and then tucking them away in the hopes that they will jump in value like gold or silver bullion.How Cryptocoin Mining WorksThis brief tutorial below is written for beginning miners who want to keep up-front costs to less than a thousand dollars.This tutorial focuses on mining 'scrypt' coins, namely Litecoins, Dogecoins, or Feathercoins.The whole focus of mining is to accomplish three things:Provide bookkeeping services to the coin network.

Mining is essentially 24/7 computer accounting called 'verifying transactions'.Get paid a small reward for your accounting services by receiving fractions of coins every couple of days.Keep your personal costs down, including electricity and hardware.The Laundry List: What You Will Need to Mine CryptocoinsYou will need 10 things to mine Litecoins, Dogecoins, and/or Feathercoins.A free private database called a coin wallet.This is a password-protected container that stores your earnings and keeps a network-wide ledger of transactions.A free mining software package made up of cgminer and stratum.A membership in an online mining pool, which is a community of miners who combine their computers to increase profitability and income stability.Membership at an online currency exchange, where you can exchange your virtual coins for conventional cash, and vice versa.A reliable full time internet connection, ideally 2 megabits per second or faster speed.A hardware setup location in your basement or other cool and air-conditioned space.

A desktop or custom-built computer designed for mining.Yes, you may use your current computer to start, but you won't be able to use the computer while the miner is running.A separate dedicated computer is ideal.Tip: Do not use a laptop, gaming console or handheld device to mine.These devices are not effective enough to generate income.An ATI graphics processing card (GPU) or a specialized processing device called a mining ASIC chip.The cost will be anywhere from $90 used to $3000 new for each GPU or ASIC chip.The GPU or ASIC will be the workhorse of providing the accounting services and mining work.A house fan to blow cool air across your mining computer.Mining generates substantial heat, and cooling the hardware is critical for your success.Personal curiosity.You absolutely need a strong appetite for reading and constant learning, as there are ongoing technology changes and new techniques for optimizing coin mining results.The most successful coin miners spend hours every week studying the best ways to adjust and improve their coin mining performance.

Why Not Mine Bitcoins?If you had started mining Bitcoins back in 2009, you could have earned thousands of dollars by now.At the same time, there are plenty of ways you could have lost money, too.Now, Bitcoin mining is reserved for large-scale operations only.Over the past five years, the mathematical difficulty of discovering Bitcoins has grown far beyond what a regular individual can achieve at home.The current up-front investment and maintenance cost to mine Bitcoins is no longer worth it for small-scale consumers.Unless you are willing to spend tens of thousands of dollars on industrial hardware and rent an air-conditioned office to house your hardware, there is no profit in mining Bitcoins.You are better off purchasing cryptocurrency with your regular money, and tucking it away in the hopes it will further climb in value.Litecoins and Dogecoins are the popular digital currencies that are still within the grasp of consumer-level users with hobby budgets, with Feathercoins being a good third option that is gaining traction.