Bitcoin - Wikipedia
https://en.wikipedia.org/wiki/BitcoinBitcoin (abbreviation: BTC; sign: ₿) is a protocol which implements a highly available, public, and decentralized ledger. In order to update the ledger, a user must prove they control an entry in the ledger. The protocol specifies that the entry indicates an amount of a token, bitcoin with a little b. The user can update the ledger, assigning some of their bitcoin to another entry in the ledger. Beca…