> For the complete documentation index, see [llms.txt](https://foru-ai.gitbook.io/foru-ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://foru-ai.gitbook.io/foru-ai/foru-ai-v3-trust-is-broken.-reputation-is-the-fix./building-the-trust-layer-for-the-ai-economy/4.-why-the-world-needs-a-reputation-layer.md).

# 4. Why the World Needs a Reputation Layer

When trust is broken, whoever rebuilds it owns the infrastructure.

* Bitcoin rebuilt trust in money (no banks needed)
* Ethereum rebuilt trust in contracts (no intermediaries needed)
* ForU AI rebuilds trust in reputation (no platforms needed)

We're building the trust layer for the AI economy.