Understanding Blockchain and Cryptography In cryptocurrency , a blockchain is a digital ledger that keeps track of the creation and movement of digital currencies, including Bitcoin. Because it is decentralized and public, it allows anyone with access to the internet to view the history of transactions on the network. In addition, the history of the blockchain is entirely transparent, while the users’ identities remain anonymous. Bitcoin transactions are verified by telecommunication network nodes through cryptography and recorded in a blockchain. Bitcoin distinguishes itself from other crypto assets by having this feature. Through this technology, Bitcoin transactions can be traced back in time, preventing the spending of coins they do not own, making copies, or undoing transactions. Since the launch of Bitcoin in 2009, every transaction has been stored in the ledger, deemed unchangeable and irreversible. Typically, when you transfer funds to someone, a trusted intermediary such as a...
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