# Cobalte NF-Ticket **How to ensure that all the tickets presented are real?** We will link tickets to an NFT through the Cobalte app, we called it NF-Ticket, and introduce a changing QR code, which will make it impossible to hold a fake ticket. **How to guarantee the authenticity of tickets on the second-hand market?** We will start from the same point as the first which is the link of the ticket with an NFT. Indeed, the NFT being linked to the ticket, buying a ticket will go hand in hand with the purchase of the corresponding NFT. The NFT being tamper-proof, it will not be possible to exchange a "fake" NFT linked to a ticket, and therefore the risk of buying a fake ticket is of the order of 0 with Cobalte. --- # 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://cobalte-io.gitbook.io/whitepaper.cobalte.io/cobalte-nf-ticket.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.