Established in London in 2013, the leading cryptocurrency exchange offers Bitcoin, Bitcoin Cash, Bitcoin Gold, Ethereum, Zcash, Dash and other trading options, provides 24/7 customer support, high level of security, and stable deposits and withdrawals. Wallet import format - Bitcoin Wiki This page contains sample addresses and/or private keys. Do not send bitcoins to or import any sample keys; you will lose your money. Wallet Import Format (WIF, also known as Wallet Export Format) is a way of encoding a private ECDSA key so as to make it easier to copy.