Crypto-assets are based on blockchain technology, which ensures the security and transparency of transactions. Blockchain is a method of storing and transmitting information through a network of computers. It records all transactions in a decentralised, secure and transparent manner.

In practical terms, a blockchain functions like a large ledger shared across multiple computers. Each transaction is encrypted and added to a block of data, which is then linked to the previous block – forming a chain. This chain is visible to all users and provides a complete and secure history of all transactions made since its creation.