Cryptocurrency can be a virtual or digital money that may buy, stored or sell with ledger wallet 다운로드 if you use cryptography. There are different forms of cryptocurrency like coinmama, blockchain, btoincash, Eos, bittrex, ripple,coinbase, localbitcoin and more. http://olm.nicht-wahr.de/mybb/member.php?action=profile&uid=1584338