A metadata layer refers to a structure or system that organizes and manages additional information about data within a blockchain. This extra layer provides context and details that help users understand the nature and purpose of the underlying data.For example, in a transaction, the metadata might include details like timestamps, transaction types, or even user identifiers. This information enhances the usability and functionality of the blockchain by allowing for smarter data interactions and queries.The metadata layer can improve transparency and accountability by making it easier to audit and trace transactions. It also supports advanced features, such as creating decentralized applications or smart contracts that require more information than what is stored directly on the blockchain.By enriching the raw data with context and structure, the metadata layer plays a crucial role in enhancing user experience and enabling more complex operations within blockchain ecosystems.