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

# System Overview

- [Profile.io Architecture](https://docs.profile.io/system-overview/profile.io-architecture.md)
- [User Profile ID Data](https://docs.profile.io/system-overview/profile.io-architecture/user-profile-id-data.md)
- [Profile Structure](https://docs.profile.io/system-overview/profile.io-architecture/profile-structure.md)
- [Themes](https://docs.profile.io/system-overview/profile.io-architecture/themes.md)
- [Issuer (Organisation) ID](https://docs.profile.io/system-overview/profile.io-architecture/issuer-organisation-id.md)
- [Badges (VCs SB NFTs)](https://docs.profile.io/system-overview/profile.io-architecture/badges-vcs-sb-nfts.md)
- [Data Registries](https://docs.profile.io/system-overview/profile.io-architecture/data-registries.md)
- [Schema Registry](https://docs.profile.io/system-overview/profile.io-architecture/data-registries/schema-registry.md)
- [Trusted Registry](https://docs.profile.io/system-overview/profile.io-architecture/data-registries/trusted-registry.md)
- [DID Registry](https://docs.profile.io/system-overview/profile.io-architecture/data-registries/did-registry.md)
- [Profile Verification](https://docs.profile.io/system-overview/profile-verification.md)
- [P2P Payments](https://docs.profile.io/system-overview/p2p-payments.md)
- [App/Dapp Marketplace](https://docs.profile.io/system-overview/app-dapp-marketplace.md): Consisting of open marketplace and pre-configured out-the-box solutions.
- [Account Abstraction](https://docs.profile.io/system-overview/account-abstraction.md)
- [Social / Content Growth Vectors](https://docs.profile.io/system-overview/social-content-growth-vectors.md)
- [Decentralisation, OpenSource Overview and Compatability](https://docs.profile.io/system-overview/decentralisation-opensource-overview-and-compatability.md): Overview of approach rather than execution. Links to Values
- [Proof of Personhood (POP) Algorithm](https://docs.profile.io/system-overview/proof-of-personhood-pop-algorithm.md)