The File Storage Layer is a component of blockchain systems that handles the storage of files and data related to transactions and smart contracts. It provides a way to save large amounts of data securely and in a decentralized manner.In many blockchain applications, transactions and on-chain data require additional off-chain storage for files that are too large to store directly on the blockchain. The File Storage Layer bridges this gap by allowing users to store this data in a way that remains accessible and verifiable.Decentralized storage solutions, such as IPFS (InterPlanetary File System) or Filecoin, often serve as the backbone of the File Storage Layer. They use a network of nodes to ensure data is distributed, replicated, and resistant to censorship.This layer enhances efficiency and reduces costs related to data handling while maintaining the integrity and transparency fundamental to blockchain systems. Overall, it supports the scalability and usability of blockchain applications by separating transactional data from larger files that can be stored elsewhere.