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During account creation, user can optionally created a FIO Crypto Handle (FCH) under the metakeep domain (or create a FIO domain and FCH under here if they wish)
COIN API
Transferring tokens to FCH
Requesting tokens from FCH
FIO Requests (tokens)
NFT API
Transferring assets to FCH
Requesting assets from FCH
Creating an NFT generates signature on the FIO chain using FCH
FIO Requests (NFTs)
Dynamic NFTs (n/a until FIO has user generated asset capability)
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