# CAD031: NFT Metadata

> Puts NFT metadata on-chain as native CVM maps (JSON-compatible, per-NFT, optionally generated dynamically) instead of relying on off-chain IPFS URLs that rot. Fixes the chronic ERC-721 problem where NFT art disappears because someone stopped pinning.

**Category:** Convex Architecture Documents  
**Badge:** CAD  
**Page:** https://brittleboye.github.io/awesome-lattice/projects/cads/cad031-nft-metadata/

## Links

- **Homepage:** https://docs.convex.world/docs/cad/031_nft_metadata
- **Source:** https://github.com/Convex-Dev/design/tree/main/docs/cad/031_nft_metadata

## Tags

`spec` `assets` `tokens` `nft` `metadata`

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