Ledger Nano S - The secure hardware wallet
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Bitcoin is the name of a cryptocurrency, which belongs to an online payment system that is based on an open source protocol that is independent of any central authority. A bitcoin can be transferred to a computer or a smartphone without resorting to any financial institution as an intermediary. This concept was born in 2008 with the pseudonym Satoshi Nakamoto who thus gave the electronics payment name "peer to peer".