# Overview ## What Nightfall does Nightfall is an application that enables transfer of ERC20, ERC721 and ERC1155 tokens with privacy and scaleability. It uses Zero Knowledge Proofs to provide the privacy and an Optimistic Rollup to provide scaleability. It has a minimum transfer cost of 6500 Gas and a peak throughput of approximately 100 TPS. Nightfall is intended for enterprise use and mainly for system to system interaction. It's not expected that it is used with a GUI, although it does provide a very simple one as a layer over its APIs for demonstration purposes. Uniquely it makes use of x509 certificates for authorisation of users. These are available from several CAs so that decentralisation is not compromised: Just like everyday business interactions, Nightfall transactions are confidential but not anonymous. --- # 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://westlad.gitbook.io/nightfall_3/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.