Persistent storage refers to a method of retaining data that remains available even after a system is turned off or restarted. In the context of blockchain, this means that information such as transaction records, account balances, and smart contracts are securely stored and can be accessed anytime.A key feature of persistent storage in blockchain is its decentralized nature. Data is often replicated across multiple nodes in a network, ensuring that no single point of failure exists. This redundancy makes it highly resistant to data loss or corruption.Another important aspect is immutability. Once data is added to the blockchain, it cannot be altered or deleted, providing a permanent and tamper-proof record. This characteristic enhances trust among users, as all parties can verify the information independently.Overall, persistent storage in this context ensures reliability, security, and transparency, which are essential for creating a trustworthy system for transactions and other operations.