A robust interface for sending and receiving documents in a secure database is provided by blockchain-based cloud file sharing
Bitcoin employs Blockchain as a platform to securely record cryptocurrency transfers from seller to buyer, eliminating the need for a central bank. The procedure starts with a Bitcoin purchase request. This transaction is contained within a block, which may also contain other transactions of a similar nature. The block is then broadcast to a network of computers known as "nodes." The transactions must then be validated by each party in the network. The block is permanently added to the chain after validation and cannot be removed or modified. After that, the Blockchain will be updated and used. What is it that makes the Bitcoin Blockchain so safe? Every block in a Blockchain contains the previous block's hash code. To change one transaction, a hacker would have to change every subsequent block in the chain to ensure the hash codes remained consistent—a potentially endless task that renders blocks practically immutable. Bitcoin is thus protected from tampering by