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What is Bitcoin ?
Bitcoin is a software-based online payment system described by Satoshi Nakamoto in 2008 and introduced as open-source software in 2009.Payments are recorded in a public ledger using its own unit of account, which is also called bitcoin. Bitcoin is a consensus network that enables a new Payment system and a completely digital money. It is the first decentralized peer-to-peer payment Network that is powered by its users with no central authority or middlemen. It's just like Paypal , Payza , Skrill or other online payment System.
First you'll need a bitcoin wallet . You can get it free from here. Now to get free Balance in your Wallet you may visit here and earn bitcoin every hour.