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

# Payment ID - PID

- [Intro](https://docs.polyflow.tech/payment-id-pid/intro.md): PID——Redefine Your Crypto Wallet
- [PID Use Case](https://docs.polyflow.tech/payment-id-pid/pid-use-case.md): SIM Verification
- [Identity Issuer Ref](https://docs.polyflow.tech/payment-id-pid/identity-issuer-ref.md)