【Abstract】A Wallet to hold bitcoins?or other cryptocurrencies?is not at all a new idea. Basically a souped-up flash drive, these gadgets hold a private key, protected by a pin or passcode, that allows a user to securely access cryptocurrency data; the data itself lives in the blockchain. Some of these wallets have their own displays, some require use with a computer or phone.
【Keywords】Bitcoin; Pins; Blockchains; Computer security
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