> For the complete documentation index, see [llms.txt](https://david-oh.gitbook.io/insta-land/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://david-oh.gitbook.io/insta-land/ecosystem/1.-key-currency-marble/1-specific-use-cases.md).

# 1) Specific Use Cases

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* Escrow interest payments are a means of paying interest on escrow tokens. The interest payment is made to the traveler at the beginning of the trip, immediately after the traveler purchases a travel product and the smart contract is executed.&#x20;
* Review mining involves rewarding travelers for updating information about travel destinations by uploading reviews and photos to a specified location. This reward is given in the form of MARBLE and serves as an incentive for travelers to engage more deeply with the platform.
* Visit verification mining enables travelers to mine MARBLE by participating in event-based visit verifications at specific travel destinations. Verification is done using GPS authentication and photo upload authentication, and higher levels and better performance of Tourist NFTs increase the mining reward.&#x20;
* Tour Course Content Mining: The platform rewards content creators, business operators, team members, and professional editors with MARBLE for publishing and executing travel products. By engaging in content editing mining, ecosystem participants will quickly construct Insta#LAND travel products and gather big data about travel destinations worldwide. Any person, including affiliate travel agencies, local land companies, tour guides, professional travel content editors, and marketing teams, can participate in Tour Course Content Mining, provided they possess Contents NFTs.&#x20;
* Tour Course Attraction Mining: Marketing teams, affiliate travel agencies, and others who possess Marketing NFTs earn MARBLE by selling travel products and attracting visitors. This mining method enables business operators and marketing team members to earn additional income beyond the revenue generated by the sale of travel products. By utilizing this mining technique, travel product sellers secure a leadership position in the ecosystem and earn high profits.&#x20;
* Guide Mining: MARBLE encourages travelers to tip guides who provide assistance during their travels using the tokens they have earned on the platform. This incentive structure motivates guides to provide better service and increase their earnings.