Bitcoin is an innovative payment network and a new kind of money. Find all you need to know and get started with Bitcoin on bitcoin.org..The bitcoin blockchain is a public ledger that records bitcoin transactions. It is implemented as a chain of blocks, each block containing a hash of the previous block up to the genesis block of the chain. A network of communicating nodes running bitcoin software maintains the blockchain. Transactions of the form payer X sends Y bitcoins to payee Z are broadcast to this network . Bitcoins are completely virtual coins designed to be self contained for their value, with no need for banks to move and store the money. Once you own bitcoins.Bitcoin is a cryptocurrency created in . Marketplaces called “bitcoin exchanges” allow people to buy or sell bitcoins using different currencies. Bitcoin is a new currency that was created .