Bitcoin (₿) is a cryptocurrency. It is a decentralized digital currency without a central bank or .. Eventually, the reward will decrease to zero, and the limit of 21 million bitcoins will be reached c. ; the record keeping will then be rewarded . The world's first cryptocurrency, Bitcoin is stored and exchanged securely on the internet through a digital ledger known as a blockchain. Bitcoin is the currency of the future & Genesis Mining is the largest cloud mining company on the market. Mine bitcoin through the cloud, get started today!. Archived from the bitxoin on 7 February Archived from bitcojn original on 14 June South China Morning Post. Archived from the original on 26 March Retrieved 26 July The fact is that gold miners are rewarded for producing gold, while bitcoin bitcoih are not rewarded for producing bitcoins; they are rewarded for their record-keeping services. Ars Technica. New York Times. Retrieved 29 May Owners of bitcoin addresses are not explicitly identified, but all transactions on the blockchain are public. I wrote Neptune's Brood in Archived from the original on 2 January Archived from the original on 2 July Retrieved 27 May Archived PDF from the original on 5 December Here's the catch. During its 30 months of existence, beginning in FebruarySilk Road exclusively accepted bitcoins as payment, transacting 9. Other methods of investment are bitcoin funds.