When a transaction or data is added to a blockchain, it gets combined with other transactions and hashed. This creates a unique string of characters that acts as a digital fingerprint for that specific block of data. This fingerprint is then stored in subsequent blocks, forming a chain of linked blocks, hence the term “blockchain.”

The immutability of records on a blockchain is maintained through the decentralized nature of the network. Unlike traditional systems where data can be easily altered or deleted by a central authority, blockchain operates on a distributed ledger system. This means that every participant on the network has a copy of the entire blockchain, ensuring that any attempt to tamper with a record would require the alteration of all subsequent blocks, which is practically impossible.

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