A metadata contract is a type of agreement used in blockchain systems that allows the inclusion of additional information alongside the primary data stored in the blockchain. This extra information, known as metadata, can provide context, details, or specific conditions related to the data.For example, in a transaction, metadata might include details about the sender and receiver, timestamps, or purpose of the transaction. This helps clarify the context of the transaction without altering the core data itself.Metadata contracts can enhance usability, ensure compliance with regulations, or improve data interoperability between different blockchain systems. They empower developers and users to embed richer information within the blockchain, making it easier to track and understand data over time. In summary, metadata contracts serve as an important tool for adding clarity and context to blockchain transactions and records, allowing for more detailed and informative interactions within the system.