# Online Marketplaces **Scenario:** An online marketplace is struggling with fraudulent buyers and sellers who create fake accounts to manipulate reviews, prices, and transactions, leading to a loss of trust among genuine users. #### **How** Taτsu **Works:** * **Identity Aggregation:** Buyers and sellers link their marketplace profiles, payment methods, and other relevant credentials to Taτsu, forming a robust digital identity. * **Human Score Calculation:** Taτsu assigns a human score based on the user’s transaction history, reviews, and engagement with the marketplace. * **Decentralized Verification:** The marketplace uses Taτsu’s decentralized verification to authenticate users before they can list products or make purchases. Users with low human scores are flagged for further review or restricted. * **Identity Proof:** Verified users receive a digital credential that they use to authenticate their actions on the marketplace, ensuring that all transactions are conducted by real, trustworthy individuals. **Outcome:** The marketplace sees a reduction in fraudulent activity, with more transparent and secure transactions. Trust among buyers and sellers is restored, leading to increased activity and satisfaction. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://tatsu.gitbook.io/tatsu-whitepaper/exploring-the-potential-use-cases/online-marketplaces.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.