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EIP-721 2 includes an optional metadata extension with a name, symbol and for each tokenID a tokenURI with can point to a JSON file with name, description and image for the given token ID.

For testing purpose, we can use My JSON Server 6 where we can store a single JSON file in a GitHub repository that we can access via a fake JSON server.

For production we need to store our metadata in a permanent location that can exist for the life of the token.

For images we will use twemoji Graphics from twitter/twemoji 2 which are licensed under CC BY 4.0

A sample JSON for tokenID 0 is: http://my-json-server.typicode.com/abcoathup/samplenft/tokens/0 8