> For the complete documentation index, see [llms.txt](https://docs.sign.global/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sign.global/case-studies.md).

# 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


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