Blockchain is a technology that allows the creation of a shared and secure digital ledger where transactions are recorded and confirmed through a decentralized network.

In other words, blockchain is a kind of digital ledger, where all transactions are recorded permanently and immutably. This technology is based on a concept called "block chain", where each block contains a set of transactions.

The blockchain was created in 2008 to be the basis of Bitcoin, the world's first cryptocurrency. However, the technology has the potential to be used in a wide range of applications, such as smart contracts, digital identity and supply chain management.

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