Blockchain is a distributed ledger technology that allows the maintenance of a secure and reliable database. It is based on a system of chained blocks, each containing a set of information. These blocks are protected by cryptography and distributed across a computer network.
The main features of Blockchain are:
Blockchain network is not controlled by a single body or entity, but by a network of computers. This makes the technology safer and more reliable.
Transparency: all transactions recorded on the Blockchain are public and can be consulted by anyone.
Immutability: Once registered, a block cannot be changed or deleted.
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