# System Mechanics Overview The Legacy system is built on Binance Smart Chain. All actions are performed through smart contracts which enhances the security of our platform. More on this is detailed further on in this document in the Security page. ### Investment Boxes Investment boxes are how investors purchase a “stake” into our fund. One box has an exact cost of 500 USDT, and yields over 20% profit on average each month. Though please note we have a 9% purchase fee, so you will be earning your yield on 455 USDT per box instead of 500. ### Monthly Yield Payments are distributed on a monthly basis. The first profit payment for each box is exactly 32 days after it is purchased, and each 30 days recurring after that. ### Investment Box Refunds Investment boxes can be refunded at any time. Once you choose to refund, the full purchase amount of 500 USDT per box minus a 5.5% withdrawal fee will be sent to you when your monthly profit payment for that box would usually be due. This means that there is never over a 32 day waiting period when you want to withdraw your initial investment, and you always know the specific time you will receive your withdrawal. Withdrawals are performed completely automatically from a small amount of liquid capital which is left in our contract, if there is no capital left in the contract, the Legacy team closes out select positions on ByBit and deposits more capital into the contract. Please note that the 9% deposit fee only applies to your yield. You will get the total 500 USDT minus the 5.5% withdrawal fee per box. ### Compounding Compounding is not a specific feature in our system, but investors are able to manually compound by purchasing more investment boxes with profits. --- # 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://legacy-project-1.gitbook.io/legacy-project-whitepaper-pre-alpha/system-mechanics-overview.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.