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..Bitcoin is a cryptocurrency.It is a decentralized digital currency without a central bank or single administrator that can be sent from user to user on the peer to peer bitcoin network without the need for intermediaries Transactions are verified by network nodes through cryptography and recorded in a public distributed ledger called a blockchain. .The block chain is a shared public ledger on which the entire Bitcoin network relies. All confirmed transactions are included in the block chain. It allows Bitcoin wallets to calculate their spendable balance so that new transactions can be verified thereby ensuring they’re actually owned by the spender..Bitcoin BTC is a consensus network that enables a new payment system and a completely digital currency. Powered by its users, it is a peer to peer payment network .