Explain the concept of Blockchain in a way that even a layperson can understand, using simple words.

Blockchain is like a large electronic ledger that keeps records of all transactions or events. Imagine each block as a page in this ledger where data is recorded. When a page is filled, it is sealed and added to the ledger, and this ledger is copied by many people simultaneously.

Main features:

• Impossibility to alter the past: Once a page is added, it cannot be changed without the consent of all who hold copies of the ledger.
• Transparency: All participants see the same ledger and can verify the records.
• No intermediaries: There is no central owner; everyone is equal.

This approach helps securely store and transfer information, such as money, contracts, or data, without the risk of forgery.