Payment info

Alice might not be able to send coins directly to Bobs client. Instead she stores the ‘send coin’ message somewhere, and informs bob client about the location.

blockdiag Alice Bob Storage send coins: --- subject coins payment info: --- subject storage uri amount put coins (oob) transfer info (oob) fetch coins (oob)

Payment request

This is basically a payment info reversed. Bob wants some coins from Alice, and tells here where to put the coins (and checks regulary if they are there):

blockdiag Alice Bob Target payment request: --- subject target uri amount send coins: --- subject coins transfer request (oob) put coins (oob) fetch coins (oob)

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