> For the complete documentation index, see [llms.txt](https://gl-docs.gitbook.io/zkpass/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://gl-docs.gitbook.io/zkpass/getting-started.md).

# Getting Started

- [Introduction](https://gl-docs.gitbook.io/zkpass/getting-started/introduction.md): Welcome to the zkPass User's Guide! If you're a software engineer or a technical professional seeking an introduction to zkPass, this is the ideal starting point for you.
- [What is zkPass?](https://gl-docs.gitbook.io/zkpass/getting-started/introduction/what-is-zkpass.md)
- [How does it work?](https://gl-docs.gitbook.io/zkpass/getting-started/introduction/how-does-it-work.md)
- [How zkPass can help you](https://gl-docs.gitbook.io/zkpass/getting-started/introduction/how-zkpass-can-help-you.md)
- [What's Ahead](https://gl-docs.gitbook.io/zkpass/getting-started/introduction/whats-ahead.md)
- [Service-based Proof System](https://gl-docs.gitbook.io/zkpass/getting-started/service-based-proof-system.md)
- [Main Features](https://gl-docs.gitbook.io/zkpass/getting-started/service-based-proof-system/main-features.md)
- [zkPass Workflows](https://gl-docs.gitbook.io/zkpass/getting-started/service-based-proof-system/zkpass-workflows.md)
- [Deployment Options](https://gl-docs.gitbook.io/zkpass/getting-started/service-based-proof-system/deployment-options.md)
- [Public-Cloud Hosting](https://gl-docs.gitbook.io/zkpass/getting-started/service-based-proof-system/deployment-options/public-cloud-hosting.md)
- [Private-Cloud Hosting](https://gl-docs.gitbook.io/zkpass/getting-started/service-based-proof-system/deployment-options/private-cloud-hosting.md)
- [On-Premise Hosting](https://gl-docs.gitbook.io/zkpass/getting-started/service-based-proof-system/deployment-options/on-premise-hosting.md)
- [Key Concepts](https://gl-docs.gitbook.io/zkpass/getting-started/key-concepts.md)
- [User Data](https://gl-docs.gitbook.io/zkpass/getting-started/key-concepts/user-data.md): User data encapsulates a spectrum of sensitive and confidential attributes, credentials, or claims, ranging from driver's licenses and passports to financial credentials such as bank account details.
- [DVR](https://gl-docs.gitbook.io/zkpass/getting-started/key-concepts/dvr.md): Data Verification Request
- [zkPass Proof](https://gl-docs.gitbook.io/zkpass/getting-started/key-concepts/zkpass-proof.md)