Hi fabrice,
You are right about the information being public from the start . I was thinking about using cryptographic tools for securing this bit of data. It’s only a hash value that I would like to trade and maybe using atomic transfer. But my confusion is where to store this hash on a transaction and provide it later when the atomic transfer is complete. Initially I was thinking creating assets with the hash value in the note field. When someone requests for this asset then we group 3 transactions based on atomic transfer to have a trade :
first ,an opt in transaction by the receiver for receiving the asset
second, a transaction for giving the asset with the hash value from the creator to the receiver
third, a transaction from the receiver to the creator with the amount for the hash value
But things like hash value of the data , fee for the data and trying to hide this hash value are my concerns at the moment. Any ideas??
Thanks