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NFT Metadata

As part of ERC721 and the extended OpenSea NFT specification, there are a few fields we surface in our default Tap Experience from the metadata JSON.
  • name - title of your item
  • description - description of your item, supports markdown format
  • image - the http/s URL to your hosted image
  • animation_url - the http/s URL to your hosted video (animation will display instead of image when available)
"name": "Legitimate Demo Item",
"description": "Loreum ipsum description text",
"animation_url": "",
"image": ""

IPFS File Pinning and Content Optimization

Legitimate uses Pinata for IPFS file pinning and content delivery. When images are hosted by Legitimate, they will be automatically optimized and resized for different device screen sizes and file format capabilities and served from a global gateway CDN. Animation videos will stream and autoplay muted in the Tap Experience.
An example of a full set of metadata is available on GitHub.
See NFT Image Specs and NFT Animation Specs for more details on file formats.