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Есть только миг. Памяти Олега Анофриева
What is Bitcoin?
Bitcoin is an online payment system invented by Satoshi Nakamoto, who published his invention in 2008, and released it as open-source software in 2009. The system is peer-to-peer; users can transact directly without needing an intermediary. Transactions are verified by network nodes and recorded in a public distributed ledger called the block chain. The ledger uses its own unit of account, also called bitcoin. The system works without a central repository or single administrator, which has led the US Treasury to categorize it as a decentralized virtual currency. Bitcoin is often called the first cryptocurrency, although prior proposals existed. Bitcoin is more correctly described as the first decentralized digital currency. It is the largest of its kind in terms of total market value. Bitcoins are created as a reward for payment processing work in which users offer their computing power to verify and record payments into the public ledger. This activity is called mining and is rewarded by transaction fees and newly created bitcoins. Besides mining, bitcoins can be obtained in exchange for fiat money, products, and services. Users can send and receive bitcoins for an optional transaction fee. Bitcoin as a form of payment for products and services has grown, and merchants have an incentive to accept it because fees are lower than the 2 to 3% typically imposed by credit card processors. Despite a big increase in the number of merchants accepting bitcoin, the cryptocurrency doesnt have much momentum in retail transactions. Unlike credit cards, any fees are paid by the purchaser, not the vendor. The European Banking Authority and other sources have warned that bitcoin users are not protected by refund rights or chargebacks. The use of bitcoin by criminals has attracted the attention of financial regulators, legislative bodies, law enforcement, and media. They listed money laundering, financing of illicit activities, theft, fraud, tax evasion, and use in black markets as possible. As of 2013, the criminal activities centered around theft and black markets. Officials in countries such as the United States also recognized that bitcoin can provide legitimate financial services.
What Is DogeCoin ?
Dogecoin is a form of digital currency, created and held electronically. No one controls it. Dogecoins aren’t printed, like dollars or euros – they’re produced by people, and increasingly businesses, running computers all around the world, using software that solves mathematical problems. It’s the first example of a growing category of money known as cryptocurrency.
Why Use Dogecoin ?
When you pay a cheque from another bank into your bank, the bank will often hold that money for several days, because it can’t trust that the funds are really available. Similarly, international wire transfers can take a relatively long time. Bitcoin transactions, however, are generally far faster.Transactions can be instantaneous if they are “zero-confirmation” transactions, meaning that the merchant takes on the risk of accepting a transaction that hasn’t yet been confirmed by the bitcoin blockchain. Or, they can take around 10 minutes if a merchant requires the transaction to be confirmed. That is far faster than any inter-bank transfer.
What’s that you say? Your credit card transactions are instantaneous too? Well, that’s true. But your merchant (and possibly you) pay for that privilege. Some merchants will charge a fee for debit card transactions too, as they have to pay a ‘swipe fee’ for fulfilling them. Dogecoin transaction fees are minimal, or in some cases free.