# Contract 📃 ### Technical aspects The contract is ERC-721 Non-Fungible Token Standard. Compiled in Version v0.8.7+commit.e28d00a7 under the SPDX-License-Identifier: MIT The structure is written in Solidity, a new language that is subject to continuous improvement on an on-going basis. ### Optimization **Yes** the contract is optimized so the transactions will flow without encountering any problem, meaning the Gas fee will be significantly lower. --- # 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://contact-108.gitbook.io/spongebored-whitepaper/technical-aspects/contract.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.