# Vault Open up the revenue contract of digital asset swap in the multi-sub universe, and some cores are similar to DEX. **Trade** Transactions in the Vault will be charged a handling fee of 0.1% of the transaction amount. If you hold $MTW, you can choose to use $MTW to deduct the transaction fee and enjoy a 25% discount (temporary). The entire transaction is decentralized, and the tokens traded do not pass through anyone's hands. **Staking** Staking are a way for us to reward digital citizens for having a long term mindset and locking up their $MTW tokens. By pledging your $MTW tokens, you will be able to receive $MTW rewards when you lock your tokens through staking. In the future, pledging $MTW will provide you with DAO voting and voice rights. Liquidity mining Players can stake their tokens to liquidity pools for liquidity mining to get token rewards. Staking $MTW for liquidity mining can get higher returns. Liquidity mining may incur free losses. **Foundation** The referrer gets a profit from the referee's consumption, and 7% of the 4.25% platform fee charged by the platform will be given to the referrer. 50% of the handling fee will be allocated to the world mining pool as a reward for token holders who staking $MTW tokens, and the remaining 50% will be allocated to the "Foundation". The foundation will provide creators of high-quality content and games with $MTW as an incentive to build a multiverse with a good ecology. **Private mining pool** When certain conditions are met (higher requirements for land scale, number of people, contribution, pledge, etc.), TinyVerse can apply to be upgraded to a sub-universe. The default limit of the sub-universe fan group is 128. The sub-universe can issue FT by itself. The lord can pledge his minted currency and governance token $MTW to the private mining pool to create a liquidity mining pool. The TVL of a single pool must reach more than 5000u. The sub-universe can be upgraded to a sub-universe when a higher condition is reached, and the issued NFT or FT can be freely traded outside MT WORLD. --- # 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://mtworld.gitbook.io/product-docs/vault.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.