# PITCH LAKE {% hint style="success" %} The Pitch Lake Paper has been released! Read it [here](https://papers.ssrn.com/sol3/papers.cfm?abstract_id=4123018). {% endhint %} Pitch Lake uses StarkNet STARKs to calculate time-weighted averages of basefee (TWAPs) in a given month to be used for cash settlement of basefee option contracts. Access to verified Ethereum mainnet block headers is achieved with the help of Fossil that uses the Cairo architecture. Pitch Lake is built around the design principle of oracle-lessness: All input data to the option protocol are obtained from Ethereum mainnet and processed through Fossil. No external data feed or oracle is needed to mint, price or settle an option contract. Liquidity is rolled-over continuously, and strike, collateral and reserve price calculations are done fully automatically using Fossil. More updates coming soon! --- # 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.oiler.network/oiler-network/products/pitch-lake.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.