> For the complete documentation index, see [llms.txt](https://eidr.gitbook.io/digital-replicas-and-talent-id/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://eidr.gitbook.io/digital-replicas-and-talent-id/overview/key-participants/contributors/metadata-and-governance.md).

# Metadata & Governance

- [EIDR](https://eidr.gitbook.io/digital-replicas-and-talent-id/overview/key-participants/contributors/metadata-and-governance/eidr.md): The Universal Media Identifier
- [HAND](https://eidr.gitbook.io/digital-replicas-and-talent-id/overview/key-participants/contributors/metadata-and-governance/hand.md)
- [C2PA](https://eidr.gitbook.io/digital-replicas-and-talent-id/overview/key-participants/contributors/metadata-and-governance/c2pa.md)