Constant bs58::alphabet::BITCOIN

pub const BITCOIN: &[u8; 58] = b"123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";

Bitcoin's alphabet as defined in their Base58Check encoding.

See https://en.bitcoin.it/wiki/Base58Check_encoding#Base58_symbol_chart.