The innovation at the heart of bitcoin is called the blockchain. Again, let’s use some analogies.      The blockchain is like a huge, global, decentralized spreadsheet.  It keeps track of who sent how many coins to whom, and what the balance of every account is.  It is stored and maintained by thousands of people (miners) across the globe who have special computers.  The  blocks in the blockchain are made up of all the individual transactions  sent from Myetherwallet, MetaMask, Exodus, Mist, Geth, Parity, and  everywhere else.     Blockchain is like a checkbook   Imagine a global  checkbook, a global accounting ledger, where everyone can see all the  debits and credits. It’s a completely open book, so everyone can confirm  that the checkbook is balanced at all times. The blockchain is similar,  with computers worldwide constantly recording who’s bought and sold  bitcoin (and other blockchain assets).   This “distributed ledger” means that no one person, company, or  government cont...
 
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