Immutable

Immutable means unchangeable in nature. In the context of blockchain technology, it refers to the characteristic that once data is recorded on the blockchain, it cannot be altered, modified, or deleted. This attribute ensures the integrity and security of the data, as every transaction is permanently recorded and verifiable by anyone at any time. Immutable records prevent fraud and tampering, creating trust in decentralized systems. This is crucial for cryptocurrencies, ensuring that transaction histories are accurate and transparent. It enhances security, as even malicious actors cannot retroactively alter past data.