# Data Quality & Curation The marketplace supports structured and unstructured datasets across domains including NLP, computer vision, medical, financial, social, and domain-specific training data. Each dataset entry includes: * Metadata (name, description, domain, license, tags) * File manifest (individual files with sizes) * Preview (first rows visible without login) * Community reviews and ratings Access control operates at multiple levels: * **Public**: Metadata, description, preview * **Login-gated**: Download link for free datasets * **Purchase-gated**: Download link for paid datasets * **Creator**: Full access, edit, publish, mint --- # 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://cluster-protocol.gitbook.io/whitepaper/core-infrastructure/overview/tokenized-data-marketplace/data-quality-and-curation.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.