> For the complete documentation index, see [llms.txt](https://docs.globalgold.finance/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.globalgold.finance/global-gold-1/global-gold-protocol/the-global-gold-system-overview.md).

# The Global Gold System Overview

- [The Four-Layer Architecture](https://docs.globalgold.finance/global-gold-1/global-gold-protocol/the-global-gold-system-overview/the-four-layer-architecture.md)
- [Allocated vs Unallocated Metal (SMUs)](https://docs.globalgold.finance/global-gold-1/global-gold-protocol/the-global-gold-system-overview/allocated-vs-unallocated-metal-smus.md)