# Case Studies - [EthSign](https://docs.sign.global/case-studies/ethsign.md): Enhancing EthSign with witnessed agreements - [KYC-Gated Contract Calls](https://docs.sign.global/case-studies/sumsub.md): KYC-gated smart contract interactions with Sumsub - [Proof of Audit](https://docs.sign.global/case-studies/ottersec.md): Cryptographically verify the integrity of OtterSec security audit reports - [Developer Onchain Reputation](https://docs.sign.global/case-studies/aspecta.md): Building your onchain reputation as a builder with Aspecta on Sign Protocol - [Onboarding Web2 Data](https://docs.sign.global/case-studies/mpc-tls.md): Onboard Your Web2 Data with MPC-TLS on Sign Protocol --- # 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.sign.global/case-studies.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.