# SSI

- [Supply Chain](/zhong-guo-ren/use-cases/ssi/supply-chain.md)
- [Medical Records](/zhong-guo-ren/use-cases/ssi/medical-records.md)
- [Zero Knowledge Proofs](/zhong-guo-ren/use-cases/ssi/zero-knowledge-proofs.md)
- [Background Checks](/zhong-guo-ren/use-cases/ssi/background-checks.md)
- [单点登录](/zhong-guo-ren/use-cases/ssi/single-sign-on.md): 单一登录（SSO）