Description: A Reputation Management System in the context of blockchain and cryptocurrencies is a framework that allows users to manage and improve their reputation within a decentralized ecosystem. This system is based on the transparency and immutability offered by blockchain technology, enabling users to accumulate and verify their history of interactions and transactions. Through this system, users can receive ratings and feedback from other participants, influencing their overall reputation. Key features include the ability to track user activity, verify identities, and create a reputation profile that can be used across various platforms. The relevance of these systems lies in their potential to foster trust in environments where identity may be anonymous and interactions are transactional. By providing a mechanism to assess the reliability and quality of users, these systems help mitigate the risk of fraud and promote positive behaviors within the community. In summary, a Reputation Management System in blockchain not only enhances user experience but also contributes to the sustainability and integrity of the ecosystem as a whole.