What is the blockchain?

What Is Blockchain?

Blockchain is a decentralized digital ledger that stores transactions across a network of computers. Each transaction is grouped into a "block," which is linked to the previous block, forming a secure chain that is extremely difficult to alter.

Key Features

• Decentralized. It does not rely on a central authority or a single server.
• Transparent. Anyone can verify the recorded transactions.
• Immutable. Once recorded, information is extremely difficult to modify or delete.

What Is It Used For?

Blockchain is used to record transactions securely without intermediaries. It is the underlying technology behind cryptocurrencies, but it is also used for other applications, such as smart contracts, digital identity, product traceability, and much more.

Updated on: 16/10/2026