> 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-tokens/global-gold-tokens/conditional-claim-nfts/metadata-and-provenance.md).

# Metadata & Provenance

Each Conditional Claim NFT adheres to a standardized metadata schema, ensuring full transparency and auditability.<br>

Metadata includes:

* Bar serial number
* Weight and purity
* Fine gold content (troy ounces)
* Vault identifier
* Jurisdiction
* Refiner / producer
* Assay reference
* Vault cryptographic attestation
* Tokenization timestamp<br>

All metadata is:

* Immutable once minted
* Publicly verifiable
* Cryptographically signed by the vault
* Anchored to the Global Gold Registry

This creates bar-level proof-of-reserves by design.