A cryptocurrency, crypto-currency, or crypto is a digital currency designed to work as
a medium of exchange through a computer network that is not reliant on any central authority, such
as a government or bank, to uphold or maintain it. It is a decentralized system for verifying that
the parties to a transaction have the money they claim to have, eliminating the need for traditional
intermediaries, such as banks, when funds are being transferred between two entities. (資料來源
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Cryptocurrency does not exist in physical form (like paper money) and is typically not
issued by a central authority. Cryptocurrencies typically use decentralized control as opposed to a
central bank digital currency (CBDC). When a cryptocurrency is minted, or created prior to issuance,
or issued by a single issuer, it is generally considered centralized. When implemented with
decentralized control, each cryptocurrency works through distributed ledger technology, typically a
blockchain, that serves as a public financial transaction database. (資料來源
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