The blockchain or blockchain is a secure, transparent and decentralized technology for storing and transmitting information. It works as a shared database where information is stored in blocks and each block is connected to the previous one, forming a chain.
One of the main characteristics of blockchain is its immutability: once an information is recorded, it can no longer be modified, which guarantees its integrity.
This technology is often associated with cryptocurrencies such as Bitcoin or Ethereum, as it is used to record and secure transactions. However, blockchain goes far beyond the simple use of cryptocurrencies.
It allows the creation of smart contracts, automatically executable programs, and NFTs (non-fungible tokens) to represent unique digital object ownership.
The blockchain is based on a network of computers or nodes that participate in the maintenance and validation of the chain. This decentralized network eliminates the need for a central authority, making transactions safer and transparent.
This is because each node has a copy of the complete chain, and transactions are validated by consensus, reinforcing security against fraud or manipulation.
In conclusion, blockchain represents a technological revolution with multiple applications. It extends from decentralized finance to areas like insurance, logistics, and even digital art.
By ensuring data traceability and security without intermediaries, blockchain is paving the way for a more transparent and decentralized world.