A New Kind of Defense Secretary Saves His Ammunition for Domestic Enemies
By Helene Cooper, Eric Schmitt and John Ismay from NYT U.S. https://ift.tt/ENnWoqy
An Introduction to Bitcoin
बिटकॉइन(Crypto currency) An Introduction to Bitcoin You've probably heard of Bitcoin, but what exactly is it? In short, Bitcoin is a decentralized digital currency that can be used to buy and sell goods and services. Transactions are facilitated via a peer-to-peer network, and there is no need for a central authority such as a bank or government. Read on to learn more about how Bitcoin works and why it has become so popular. How Bitcoin Works:- Bitcoin transactions are recorded on a public ledger called the blockchain. Blockchain technology was first developed for use with Bitcoin, but it has since been adapted for other purposes such as tracking ownership of assets and verifying identities. When someone sends Bitcoin to another person, the transaction is broadcast to the network and verified by so-called "miners." Miners are individuals or groups who use powerful computers to validate transactions and add them to the blockchain. In return for their work, miners ar...
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