Blockchain
What is a blockchain? Cryptocurrencies such as Bitcoin et Ethereum functioning avec unites blockchain technology. Basically, a blockchain is a list of transactions that anyone can review. For example, the Bitcoin blockchain contains a record every time someone has sent or received Bitcoin. Cryptocurrencies and the blockchain technology that powers them make it possible to transfer values online without the need for an intermediary such as a bank or credit card company. How does it work Here is an example of how blockchain is used to verify and record Bitcoin transactions. A consummator who sells bitcoins. The transaction data is sent through Bitcoin's decentralized node network. The nodes validate the transaction. Once approved, the transaction is grouped with other transactions in a block that adds to an ever-growing chain of transactions. The entire block is encrypted and the transaction record is permanent; it cannot be deleted or changed on the blockchain. The Bitcoin blockch