# Blockchain technology ## Why blockchain? The blockchain technology used in our project keeps track of the tokens owned by each of our users. It also opens up the possibility of freely trading these assets with other users and using them to obtain different in-game items**.** ## Token protocols The protocols used for tokenization of assets used in the game are two: * **ERC20:** Galactic Quadrant (GQ) and other resources like Iron (IRON), Copper (COP)... * **ERC721:** Used for digital assets that represent in-game objects such as weapons, armor, etc... ## Integrations ### Chains For now, the project **operates on the BNB Smart chain, formerly BSC (Binance Smart chain), while all the foundations are being laid.** The proposal to start on this chain is due to the fact that the transaction fees are cheaper for users and therefore open the possibility of **bringing the project closer to more users.** However, one of the strengths of Outer Ring is the **future integration with more than one chain**, giving the user the freedom to choose the one that is most convenient for them without losing the interaction with Outer Ring. Figure 1 represents graphically the high-level idea of how crosschain implementation will work. ![Figure 1: High-level scheme of Crosschain](/files/SEbpFabmftOx3DFKEdhQ) ### Game The interaction of the blockchain with the game is done in two ways. On the one hand, by **burning any of the tokens that you want to put into the game**, taking them out of the circulant. The other way consists of **minting the tokens that represent the assets you want to take out of the game.** ![Figure 2: High-Level scheme of game integration](/files/DyrdQ0DSUbEzc9MYu7tN) ## {% file src="/files/0vzMx7xEhnwq9XccggVJ" %} --- # 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://docs.outerringmmo.com/development/blockchain-technology.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.